ᖺᗘ
ඹྠ฼⏝࣭ඹྠ◊✲ሗ࿌᭩ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤඹྠ฼⏝࣭ඹྠ◊✲ጤဨ఍௧࿴ඖᖺᗘ䚷ሗ࿌᭩┠ḟ
1R

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻝

▼ᶫ㝯ᖾ

㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ᪂つ䝡䝇䝬䝇⨨᥮☢ᛶ䜺䞊䝛䝑䝖䛾㛤Ⓨ䛸ホ౯
኱Ꮫ㝔

㻝

㻞

⸨ཎ⿱ྖ

୕㔜኱Ꮫ

㻲㼑⣔䜰䝰䝹䝣䜯䝇ྜ㔠ⷧ⭷䜢฼⏝䛧䛯䜂䛪䜏䝉䞁䝃䛾㛤Ⓨ

㻟

㻟

ᒣ⏣ၨ௓

ᒱ㜧኱Ꮫ

☢ᛶ㻛㠀☢ᛶ䛾ከᒙᵓ㐀䜢᭷䛩䜛༢୍☢ᛶ䝘䝜䝽䜲䝲䞊䛻䛚䛡䜛ᕧ኱☢Ẽ᢬ᢠຠᯝ䛾ほ

㻡

㻠

బ⸨ಇ୍

ᮾ໭኱Ꮫ

㟁Ꮚ఩┦ᅇᢡ⣲Ꮚ䛾ホ౯

㻣

㻡

ᒣ㷂䚷㡰

኱㜰኱Ꮫ

཰ᕪ⿵ṇ㟁Ꮚ㢧ᚤ㙾䜢⏝䛔䛯㔠ᒓ䝘䝜⢏Ꮚゐ፹䛾୕ḟඖィ

㻢

ෆ⏣ṇဢ

ᇸ⋢ᕤᴗ኱Ꮫ

ඛ➃ᮦᩱ㛤Ⓨ䛾䛯䜑䛾㟁Ꮚ䝪䝹䝔䝑䜽䝇䜲䝯䞊䝆䞁䜾◊✲

㻝㻝

㻣

㧗ᶫྍᫀ

㛵す኱Ꮫ

┬䡰䢄䢕䡳䢚䡬໬䜢ಁ㐍䛩䜛⪏ೃᛶ㻵㼛㼀䡿䢚䢆䢚䡮䡹䛾ᙉᗘタィᇶ‽䛻㛵䛩䜛◊✲

㻝㻟

㻤

⸨ᒃಇஅ

ᮾிᕤᴗ኱Ꮫ

⮬ື㌴⏝䝣䜵䝷䜲䝖㗰䛻䛚䛡䜛⑂ປ㌿఩⤌⧊䛾㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾ほᐹ

㻝㻡

㻥

୰ᕝ㕲Ỉ

⌰⌫኱Ꮫ

Ỉ⣲྾ⶶྜ㔠䜢⏝䛔䛯䝯䝍䞁໬཯ᛂ䛾㼕㼚㻙㼟㼕㼠㼡㻌㼀㻱㻹䞉㉁㔞ศᯒ㻝㻣㻝㻜 ᑠႹ┿ேᮾி⌮⛉኱Ꮫ

䝺䜰䝯䝍䝹䝣䝸䞊㧗ᶵ⬟☢ᛶᮦᩱ㻸㻝㻜㻙㻲㼑㻺㼕䛾ᡂ⭷ᢏ⾡䛾㛤Ⓨ㻝㻝 ཎ䚷჆᫛

Ⲉᇛᕤᴗ㧗➼ᑓ㛛⁐ᾮ୰䛻⁐Ꮡ䛧䛯䝘䝜䝞䝤䝹䛻䜘䜛䝘䝜⢏Ꮚ⾲㠃ಟ㣭Ꮫᰯ㻞㻝㻝㻞 ⸨஭೺ኴ㑻ᅜ❧◊✲㛤Ⓨἲே㔞Ꮚ⛉Ꮫᢏ⾡◊✲ Ỉ࿴⏕యศᏊ䛾䜶䝛䝹䜼䞊ఏ㐩㐣⛬䛾◊✲
㛤Ⓨᶵᵓ

㻞㻟

㻝㻟 ᒣᮏ᐀᫛

኱㜰ᕷ❧኱Ꮫ

஧㓟໬Ⅳ⣲㑏ඖ䛻ྥ䛡䛯㓟໬䜺䝸䜴䝮䝘䝜䝅䞊䝖ගゐ፹䛾๰〇㻞㻡㻝㻠 㟷ᮌⱱᶞ⚄ᡞ኱Ꮫ㉸㧗㏿ཎᏊ᰾஝ᯈゎᯒᢏ⾡䜢฼⏝䛧䛯Ẽ⌫ᦚ㍕ᆺᏱᐂ⥺䜲䝯䞊䝆䞁䜾䝅䝇
䝔䝮䛾☜❧

㻞㻣

㻝㻡 ṓ⸨฼⾜ྡྂᒇᕷ❧す㒊་⒪䝉䞁䝍䞊㝧Ꮚ⥺἞⒪䛻䛚䛡䜛యෆ⥺㔞ศᕸ䛾ィ ἲ䛾㛤Ⓨ㻟㻞㻝㻢 ఀ௦㔝῟ᒸᒣ⌮⛉኱Ꮫ

඲⢏Ꮚ᳨⣴ྍ⬟䛺ཎᏊ᰾஝ᯈゎᯒ䛻䜘䜛Ᏹᐂ⥺㔜ཎᏊ᰾䛾⮬ືྠᐃ䜈䛾ᛂ⏝㻟㻠㻝㻣 す⸨Ύ⚽ዉⰋ┴❧ྂ௦♫఍䛻䛚䛡䜛㈨※㓄⤥䝛䝑䝖䝽䞊䜽䛾ᩘ್ゎᯒ᷃ཎ⪃ྂᏛ◊✲ᡤ㻝㻤 ᭷㈡ᬛᏊ

஑ᕞ኱Ꮫ㻝㻥 ᮌᮧ඘ᏹ

ྡྂᒇᕷ⑓㝔ᒁす㝧Ꮚ⥺↷ᑕሙ୰䛾㉸㧗㏿஧ḟ୰ᛶᏊ䛾㒊་⒪䝉䞁䝍䞊ᡭἲ䛾㛤Ⓨᐃᗈど㔝䛷䛾㧗㏿ㄞ䜏ฟ䛧䛻ྥ䛡䛯᪂䝍䜲䝥䜶䝬䝹䝅䝵䞁᳨ฟჾ䛾㛤Ⓨ
ᐃ

㻥

㻝㻥

㻟㻢
㻟㻤
㻠㻜

1R

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻞㻜 ῰㇂䚷ᐶᮾ㑥኱ᏛཎᏊ᰾஝ᯈ䜢⏝䛔䛯⢏Ꮚ᳨ฟჾ䛻䛚䛡䜛㐠ື㔞ᐃᢏ⾡䛾㧗ᗘ໬㻠㻞㻞㻝 ྜྷ⏣᭸Ꮚ

኱㜰ᕷ❧኱Ꮫ

㻴㼑䝥䝷䝈䝬↷ᑕ䛻䜘䜚⏕ᡂ䛩䜛䝍䞁䜾䝇䝔䞁䝘䝜ᵓ㐀䛾ගゐ፹䜈䛾ᛂ⏝㻠㻠㻞㻞 Ⲩᕳග฼᪥ᮏ኱Ꮫ㠀᥋ゐ䝥䝷䝈䝬⏕ᡂ㐣⛬䛻䛚䛡䜛୰ᛶཎᏊ ᗘ䛾✵㛫ኚ໬㻠㻢㻞㻟 ಖ஭䚷᫭බ┈㈈ᅋἲே
㧗㍤ᗘග⛉Ꮫ
◊✲䝉䞁䝍䞊

◳䊩⥺ග㟁Ꮚศග䜢⏝䛔䛯䝇䝢䞁䝖䝻䝙䜽䝇ᮦᩱ䛾ᇙ䜒䜜䛯⏺㠃䛻䛚䛡䜛☢
໬ศᕸィ ᢏ⾡㛤Ⓨ㻠㻤㻞㻠 ㇏⏣ᬛྐ

ி㒔኱Ꮫ◳㼄⥺ゅᗘศゎග㟁Ꮚศග䜢⏝䛔䛯ከᒙ✚ᒙⷧ⭷ᮦᩱ⏺㠃䛾῝䛥᪉ྥศᕸゎᯒᢏ⾡㛤Ⓨ㻡㻜㻞㻡 ᐑᮏᡂᝅ

ᮾி኱ᏛᏱᐂ⥺䜢⏝䛔䛯ⅆᒣ䛾㻯㼀᧜ീ㻡㻞㻞㻢 㔠ᓮ┿⪽⚄ᡞ኱ᏛཎᏊ᰾஝ᯈ䜢⏝䛔䛯㻝㻜㻜㻌㻹㼑㼂⣭䝺䞊䝄䞊ຍ㏿䝥䝻䝖䞁䛾≉ᛶホ౯㻡㻠㻞㻣 ჆ᖭ䚷ⱱி㒔እᅜㄒ኱Ꮫ

⪃ྂᏛ㑇㊧ㄪᰝ䛾䛯䜑䛾䝪䞊䝸䞁䜾ᆺᏱᐂ⥺䝭䝳䞊䜸䞁䜲䝯䞊䝆䞁䜾ᢏ⾡䛾
㛤Ⓨ◊✲

㻡㻢

㻞㻤 ụ⏣ᩄᙪ

ಙᕞ኱Ꮫ෤ᮇ㛫䛻䛚䛡䜛ᑠᆺỈ㌴䛾⟶⌮䝅䝇䝔䝮䛾ᵓ⠏㻡㻤㻞㻥 ᒸᒣ᭸Ꮚ኱ṇ኱Ꮫ䝢䝁ỈຊⓎ㟁䝅䝇䝔䝮ᑟධ䝔䜻䝇䝖㛤Ⓨ㻢㻜㻟㻜 㣤ᑿ᫛୍㑻ಙᕞ኱Ꮫ䜻䝱䝡䝔䞊䝅䝵䞁ᄇὶ䛾㦁㡢䚸ᅽຊὶ㔞≉ᛶ㻢㻞㻟㻝 ๽䚷㘜

኱㐃⌮ᕤ኱Ꮫ

䜸䞁䝕䝬䞁䝗ᆺ┦஌䜚஺㏻䝅䝇䝔䝮䛾ືⓗ㟂せ⟶⌮䛸㐠⾜᭱㐺໬ᡭἲ䛻㛵
䛩䜛◊✲

㻢㻠

㻟㻞 㕥⨨ಖ㞝ឡ▱ᕤᴗ኱Ꮫ

㟁ຊ⏝⤯⦕ᮦᩱ䛾ຎ໬䛻㛵䛩䜛ᇶ♏ⓗ◊✲㻢㻢㻟㻟 ༓ఫᬛಙ

⌰⌫኱Ꮫ㟁Ẽ⮬ື㌴䛾㠀᥋ゐᆺ඘㟁䝅䝇䝔䝮㻢㻤㻟㻠 ᑠᯘ䚷₶ᕤᏛ㝔኱ᏛከᏍ㉁䝉䝷䝭䝑䜽䜢⏝䛔䛯ప䝍䞊䝹䝞䜲䜸䝬䝇䜺䝇໬䝥䝻䝉䝇䛾㛤Ⓨ㻣㻜㻟㻡 ᕸ┠㝧Ꮚᗈᓥ኱Ꮫ᭷ᶵ䜶䜰䝻䝌䝹ィ 䛾䛯䜑䛾㻰㻯䝟䝹䝇䜾䝻䞊ᨺ㟁䝥䝷䝈䝬䜢฼⏝䛧䛯┤᥋㉁㔞ศᯒἲ䛾ᵓ⠏㻣㻞㻟㻢 ᑠᯘಙ௓

ᒱ㜧኱Ꮫ䜺䝇ษ᭰ᘧ㻯㻸㻼⿦⨨䜢⏝䛔䛯㻯㻻㻞䛛䜙䛾㻯㻻〇㐀㻣㻠㻟㻣 ᒸ⃝䚷ᏹᮾி㎰ᴗ኱Ꮫ

䜶䝛䝹䜼䞊ຠ⋡䛾ྥୖ䜢┠ⓗ䛸䛧䛯୰ᑠつᶍỈຊⓎ㟁䛾䝫䝔䞁䝅䝱䝹ホ౯
ᡭἲ䛾ᵓ⠏

㻣㻢

㻟㻤 ⏫ᮧ䚷ᑦ኱㜰኱Ꮫ᳃ᯘ䝞䜲䜸䝬䝇䜶䝛䝹䜼䞊฼⏝ィ⏬ᨭ᥼䛾䛯䜑䛾᝟ሗᢏ⾡䜢ᛂ⏝䛧䛯䝬䝹䝏䝇䜿䞊䝹ᣢ⥆ྍ⬟㈨※㈿Ꮡ㔞ホ౯㻣㻤㻟㻥 ℈ᮧዉὠᏊ

஑ᕞ኱Ꮫ㟁Ẽ໬Ꮫⓗᚤ⏕≀䛻䜘䜛᪂つ䝯䝍䝹䝞䜲䜸䝔䜽䝜䝻䝆䞊ᢏ⾡䛻㛵䛩䜛ᇶ┙ⓗ
◊✲

㻤㻜

1R

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

㡫

㻠㻜 ⢖⏣㈗ᐉ

ᅜᅵᢏ⾡ᨻ⟇⥲ྜ◊✲ᡤ⏕≀㟁Ẽ໬Ꮫⓗ䛺❅⣲ᅛᐃಁ㐍ᢏ⾡㛤Ⓨ㻤㻞㻠㻝 ྜྷ⏣ዉኸᏊ

ྡྂᒇᕤᴗ኱Ꮫ

ຠ⋡ⓗ䛺ሷ⣲໬䜶䝏䝺䞁ศゎ䜢ྍ⬟䛻䛩䜛㻰㼑㼔㼍㼘㼛㼏㼛㼏㼏㼛㼕㼐㼑㼟㻌㼙㼏㼏㼍㼞㼠㼥㼕㻺㻵㼀㻜㻝ᰴ䛾⣽⬊ෆศᏊᶵᵓ䛾ゎ᫂㻤㻠㻠㻞 㛗㇂ᕝ䚷㇏ྡྂᒇᕤᴗ኱Ꮫ

䝎䜽䝖✵Ẽὶෆ䛻ᑟධ䛧䛯ᚤ⣽Ỉᄇ㟝㉁䛾ᣑᩓ䞉⵨Ⓨ䛻㛵䛩䜛◊✲㻤㻢㻠㻟 㰻⸨ᑗே

⌰⌫኱Ꮫ㉸పᾘ㈝㟁ຊ↓⥺㏻ಙ䝅䝇䝔䝮䛻ྥ䛡䛯ཷಙ䜰䞁䝔䝘㻤㻤㻠㻠 ࿴⏣ᛅᾈ

㟼ᒸ኱Ꮫ䝋䝣䝖䜴䜵䜰↓⥺䜢⏝䛔䛯ὶᫍ䝞䞊䝇䝖㏻ಙ䛾㧗ຠ⋡໬䛻㛵䛩䜛◊✲㻥㻜㻿㼥㼕㼍㼔㻌㻷㼡㼍㼘㼍㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥䠄䝅䜰䜽䜰䝷኱Ꮫ䠅ㄆ㆑䛥䜜䛯䝃䞊䝡䝇Ỉ‽䜢⪃៖䛧䛯බඹ஺㏻䛾฼⏝ಁ㐍ᨻ⟇㻥㻞㻠㻢 すᮧ䚷㢧

୕㔜኱Ꮫ䝞䜲䜸䜺䝇฼⏝㻴㻞〇㐀཯ᛂჾ䛾㛤Ⓨ䛚䜘䜃㧗ᛶ⬟໬㻥㻠㻠㻣 ෆ⸨ඞᾈ

ឡ▱ᕤᴗ኱Ꮫ

㻵㼛㼀䝕䝞䜲䝇㛫䛾┤᥋㏻ಙ䜢ᐇ⌧䛩䜛䛩䜎䞊䛸䝛䝑䝖䝽䞊䜽ᢏ⾡䛾㛤Ⓨ㻥㻢㻠㻤 Ⲩ஭ఙኴ㑻ᒸᒣ⌮⛉኱Ꮫ

ప᧜ᙳ㏿ᗘ䛾䜹䝯䝷䛻䜘䜛ྍどග㏻ಙ䛾䛯䜑䛾ᅇ㌿ᘧ㻸㻱㻰㏦ಙᶵ䜢⏝䛔䛯
㏻ಙ㏿ᗘ䛾ྥୖ㻥㻤㻠㻥 ࿋䚷ᯇ➉ྡྂᒇᕤᴗ኱Ꮫ

㧗Ᏻ඲ᛶ㻸㻵㻮㈇ᴟྥ䛡䛾䝘䝜䝫䞊䝷䝇㼀㼕㻻㻞㻙㼀㼕㻺」ྜ䜰䝜䞊䝗㓟໬⓶⭷䛸㻸㼕㼀㼕㻼㻻㻠ᅛయ㟁ゎ㉁䛸䛾䝘䝜✚ᒙ໬㻝㻜㻜㻡㻜 ௒஭ᏹ᫂

៞᠕⩏ሿ኱Ꮫ

䜶䝛䝹䜼䞊䝕䝞䜲䝇䜈䛾ᛂ⏝䛻ྥ䛡䛯㓟໬≀䝘䝜䝤䝻䝑䜽䛚䜘䜃㓄ิయ䛾
≉ᛶゎᯒ

㻝㻜㻟

㻡㻝 ᳃䚷ⱱ⏕኱㜰ᗓ❧኱Ꮫ

භ᪉ᬗ䝬䞁䜺䞁㓟໬≀䛻䛚䛡䜛㓟⣲྾ⶶ≉ᛶ䛸ᒁᡤᵓ㐀㻝㻜㻡㻡㻞 ᱒ཎ⪽⚽

኱㜰኱Ꮫග㐀ᙧ䝉䝷䝭䝑䜽⇕஺᥮ჾ䜈䛾㧗ຠ⋡໬䝘䝜䝅䞊䝖䝁䞊䝖㻝㻜㻣㻡㻟 㜿㒊ᾈஓ኱㜰኱Ꮫ␗✀䝘䝜᥋ྜ䛻䜘䜛ᶵ⬟⏺㠃䛾๰〇㻝㻜㻥㻡㻠 ሯ㉺୍ோ

ᅜ❧◊✲㛤Ⓨἲே ཎᏊ⭷㻛ศᏊ⭷䝝䜲䝤䝸䝑䝗䝅䝇䝔䝮䛷䛾㟁Ꮚ䛸䝣䜷䝜䞁䛾ఏᑟ䜢ไᚚ䛩䜛᪂≀㉁䞉ᮦᩱ◊✲ᶵᵓ つ㧗ຠ⋡⇕㟁ⷧ⭷䛾๰⏕㻝㻝㻝㻡㻡 ⯪ὠ㯞⨾⇃ᮏ኱Ꮫ㻝㻝㻟㻡㻢 ㇂ཱྀ㈗❶ᅜ❧◊✲㛤Ⓨἲே䝘䝜䜹䞊䝪䞁䛾㟁Ẽ໬Ꮫⓗάᛶ໬䛻䜘䜛㧗ᛶ⬟䝺䝗䝑䜽䝇䜻䝱䝟䝅䝍䛾๰〇≀㉁䞉ᮦᩱ◊✲ᶵᵓ㻝㻝㻡㻡㻣 ⩚⏣ᨻ᫂

ྡྂᒇᕤᴗ኱Ꮫ

┬䜶䝛䝹䜼䞊ᆺ䜶䞁䝆䞁䛾᤼Ẽί໬ゐ፹䛾◊✲㻝㻝㻣㻡㻤 ┿ᓥ䚷㇏ᮾிᕤᴗ኱Ꮫ

䝘䝜䜼䝱䝑䝥㟁ᴟ䛻䜘䜛⎔ቃゐ፹⣲཯ᛂ䛾᳨ฟ㻝㻝㻥㻡㻥 ⏤஭ᶞே᪂₲኱Ꮫᒙ≧໬ྜ≀䜢⏝䛔䛯ග䜶䝛䝹䜼䞊ኚ᥮⣔䛾㛤Ⓨ䛸ᵓ㐀ゎᯒ

㻝㻞㻝

㻠㻡

◊✲௦⾲⪅

㻿㼡㼓㼕㼍㼞㼠㼛
䠄䝇䜼䜰䝹䝖䠅

㓟໬ⓑ㔠䝘䝜䝅䞊䝖䛾㻭㻲㻹䛻䜘䜛⾲㠃≧ែほᐹ

1R

◊✲௦⾲⪅

ᡤᒓᶵ㛵

◊✲ㄢ㢟ྡ

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㻢㻜 ᒣᾆ┿୍⫋ᴗ⬟ຊ㛤Ⓨ⥲ྜ኱Ꮫᰯ㔠ᒓ䜺䝷䝇䛾⤌⧊ไᚚ䛻䜘䜛Ỉ⣲྾ⶶᮦᩱ䛾◊✲㻝㻞㻟㻢㻝 ຍ⸨ⱥᶞᮾ໭኱ᏛỈศゎගゐ፹䛾๻ⓗ䛺άᛶྥୖ䜢┠ᣦ䛧䛯᪂つಟ㣭ἲ䛾㛤Ⓨ㻝㻞㻡㻢㻞 ᮅ಴⿱௓

ᮾ໭኱Ꮫᾮ┦䜢⏝䛔䛯㓟䝣䝑໬≀䛾ྜᡂ䛸䛭䛾ᶵ⬟㻝㻞㻣㻢㻟 ྜྷ⏣ᑑ㞝ி㒔኱Ꮫගゐ፹䛻䛚䛡䜛䝷䝆䜹䝹⏕ᡂ⣲㐣⛬䛾᳨ウ㻝㻞㻥㻢㻠 ➲஭䚷ுᓥ᰿኱Ꮫ㻾㼔䝗䞊䝥䝏䝍䞁㓟䝘䝜䝅䞊䝖䜢⏝䛔䛯ගỈ⣲Ⓨ⏕཯ᛂ୰䛾㻾㼔䛾≧ែኚ໬䛾ᴟప 㻱㻿㻾䛻䜘䜛䛭䛾ሙほᐹ㻝㻟㻝㻢㻡 ኱ὠ┤ྐ໭ぢᕤᴗ኱Ꮫ

┬䜶䝛䝹䜼䞊ᆺ䝥䝻䝉䝇䛻䜘䜛ᢠ⳦ᛶ㔠ᒓᮦᩱ䛾〇㐀㻝㻟㻟㻢㻢 ᑎ㛛䚷ಟภ㤋ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ

ᾏὒ⏕≀௜╔㝖ཤ䛾┬䜶䝛䝹䜼䞊໬䜢ᚿྥ䛧䛯䝫䝸䜶䝏䝺䞁䛾⾲㠃ᨵ㉁䛻
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㻝㻟㻡

㻢㻣 ᒸ㔝䚷⪽ឡ፾኱Ꮫ㧗ຠ⋡⣽⬊ᇵ㣴ᢏ⾡䛾㛤Ⓨ䜢┠ᣦ䛧䛯䝏䝍䞁ྜ㔠䛾⤌⧊ไᚚ㻝㻟㻣㻢㻤 ୗᔱ䚷ᩔ᪩✄⏣኱Ꮫ

㏱᩿᫂⇕䝅䞊䝖䛾㛤Ⓨ䛻ྥ䛡䛯୰✵䝘䝜⢏Ꮚ䛾⢭ᐦྜᡂ䛸㞟✚㻝㻟㻥㻢㻥 ᕝཱྀ᪸ᙪ

㟼ᒸ኱Ꮫ඲ᅛయ㟁ụ䛻䛚䛡䜛䝞䞁䝗䜰䝷䜲䝯䞁䝖䛸⏺㠃᢬ᢠ䛾㛵ಀ䛾ㄪᰝ㻝㻠㻝㻣㻜 ⫝̸㻌ୡ⋢୕㔜኱Ꮫ㻿㼕㻯ᇶᯈୖ䝇䝟䝑䝍㻭㼘㻺⭷䛾⏺㠃ᵓ㐀ゎ᫂㻝㻠㻟㻣㻝 బ䚻ᮌ䚷㐍᪂₲኱Ꮫ㉸㧗ឤᗘ᰾䝇䝢䞁ィ㻝㻠㻡㻣㻞 ▼஭䚷⪽ᮾி㟁ᶵ኱Ꮫ

ᨺᑕ⥺䛛䜙㟁Ẽ䜈䛾㧗ຠ⋡䛺┤᥋䜶䝛䝹䜼䞊ኚ᥮䜢ྍ⬟䛻䛩䜛᭷ᶵ༙ᑟయ㻛㻯㻺㼀ⷧ⭷䛾㛤Ⓨ㻝㻠㻣㻣㻟 ⸨ᖹဴஓ

኱㜰኱Ꮫపᾘ㈝㟁ຊேᕤ䝅䝘䝥䝇⣲Ꮚ㛤Ⓨ䜢┠ᣦ䛧䛯㓟໬≀䝯䝰䝸䝇䝍ᮦᩱ䛾ཎᏊ䞉㟁Ꮚᵓ㐀ゎᯒ㻝㻠㻥㻣㻠 ⱝᯘ䚷ᩚᮾிᕤᴗ኱Ꮫ

☢໬≉ᛶ䜢Ⓨ⌧䛩䜛㑄⛣㔠ᒓ䝎䜲䜹䝹䝁䝀䝘䜲䝗⭷䛾Ḟ㝗䞉⢏⏺䛻㛵䛩䜛᩿㠃㻛ᖹ㠃㼀㻱㻹ゎᯒ㻝㻡㻝㻣㻡 ᪂ᐙᐶṇᮾ໭኱Ꮫගບ㉳ㄏ㟁య䝘䝜ᵓ㐀䛾๰䜛☢Ẽቑᙉሙ䛷䛾䜻䝷䝹᰾ᙧᡂ㻝㻡㻟㻣㻢 ᇼ㒊㝧୍஑ᕞᕤᴗ኱Ꮫ

㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁య㻾㻲㼑㻞㻻㻠䠄㻾㻦ᕼᅵ㢮ඖ⣲䠅䛻䛚䛡䜛ᒁᡤᵓ㐀㻝㻡㻡㻣㻣 ᑠᓥ୍ಙᮾ໭኱Ꮫ῝⣸እⓎග䝎䜲䜸䞊䝗ᵓ㐀䛻䛚䛡䜛Ⓨග≉ᛶ䛾ホ౯㻝㻡㻣㻣㻤 ∦ᒣ❳஧኱㜰኱Ꮫ❅໬≀༙ᑟయ䛾ᴟᛶ཯㌿ᢏ⾡㛤Ⓨ䛸ᴟᛶ཯㌿䝦䝔䝻⏺㠃䛾ᵓ㐀ホ౯㻝㻡㻥 㝡ᒣࠉ᫂

ᮾி኱ᏛỈ⁐ᛶ⤖ᬗࢫ࣏ࣥࢪస〇࡟ྥࡅࡓ'1$ᵓ㐀యタィ࡟㛵ࡍࡿ◊✲䛻䜘䜛㻳㼍㻺⤖ᬗ୰䛾⮬Ⓨศᴟ䛾┤᥋ほᐹ

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ᒣཱྀ኱Ꮫ

+93(ἲ࡟ࡼࡿ*D1ࣂࣝࢡ⤖ᬗཬࡧ*D1ⷧ⭷స〇 ຍ⸨ṇྐྡྂᒇᕤᴗ኱Ꮫ

6L&⤖ᬗෆࡢᇶᗏ㠃㌿఩㐠ືไᚚ ඵᮌ㈗ᚿ

⏘ᴗᢏ⾡⥲ྜ◊✲ ࢼࣀࢫࢣ࣮ࣝ࿘ᮇᵓ㐀ࢆ᭷ࡍࡿ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥࡢ⇕㍺㏦≉ᛶホ
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 ሯᮏ຾⏨኱㜰኱ᏛගᏛ࡜;⥺ࢺ࣏ࢢࣛࣇほᐹ࡟ࡼࡿ6L&⤖ᬗෆ㒊Ḟ㝗ࡢẚ㍑ホ౯ బ⸨ጾ཭

໭ᾏ㐨኱Ꮫග໬Ꮫ࢚ࢵࢳࣥࢢἲࢆ⏝࠸ࡓ*D1026⏺㠃࡟㛵ࡍࡿ◊✲ ㇂ᕝᬛஅ

኱㜰኱ᏛከගᏊບ㉳㐣⛬ࢆ⏝࠸ࡓ*D1⤖ᬗࡢ㠀◚ቯほᐹ࣭ゎᯒᢏ⾡ ᐩ⏣༟ᮁ

ᚨᓥ኱Ꮫࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡿ㔠ᒓ*D1⏺㠃ไᚚ࡟㛵ࡍࡿ◊✲ู⣬ᵝᘧ㸰㸫㸰᪂つࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺࡢ㛤Ⓨ࡜ホ౯Development and characterization of new Bi-substituted iron garnets▼ᶫ㝯ᖾ࣭㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭ᩍᤵすᕝ㞞⨾࣭㛗ᒸᢏ⾡⛉Ꮫ኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭ຓᩍす ᩗ⏕㺃⚄ᡞᕷ❧ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ࣭㟁ᏊᕤᏛ⛉㺃ᩍᤵᒾ⏣ ⪽࣭ྡྂᒇ኱Ꮫ࣭࢚ࢥࢺࣆ࢔⛉Ꮫ◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ࡇࢀࡲ࡛ᡃࠎࡣࠊ☢ẼගᏛ࢖࣓࣮ࢪࣥࢢ࡟⏝࠸ࡿࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺ⭷ࢆ㛤
Ⓨࡋࠊ኱㠃✚ࡢ☢Ẽ࢖࣓࣮ࢪࣥࢢࣉ࣮ࣞࢺࢆᐇ⌧ࡋ࡚ࡁࡓࠋࡑࡋ࡚ࠊࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺࡢ GHz ᖏ࡟࠾ࡅࡿ㧗࿘Ἴ≉ᛶࡀᕼᅵ㢮࢖࢜ࣥ࡟኱ࡁࡃ౫Ꮡࡍࡿࡇ࡜ࢆ♧ࡋࡓࠋࡑࡢ⤖ᯝ࠿ࡽࠊ4f 㟁Ꮚࡀ༙ศ௨ୗࡢᕼᅵ㢮ඖ⣲ࡢ᪉ࡀࠊⰋ࠸㧗࿘Ἴ≉ᛶࢆ♧ࡍ≉ᛶࡀᚓࡽࢀࡿྍ⬟ᛶࡀ࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡋ࠿ࡋࠊᡃࠎࡀ㛤Ⓨࡋࡓ Nd ࢆ⏝࠸ࡓ࣮࢞ࢿࢵࢺ௨እࡣࠊࡇࢀࡲ࡛࡯࡜ࢇ࡝ሗ࿌ࡀ࡞࠸ࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊ4f 㟁Ꮚࡀ༙ศ௨ୗࡢᕼᅵ㢮ඖ⣲ࢆ⏝࠸ࡓࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺ⭷ࢆ㛤Ⓨࡋࠊࡑࡢ☢Ẽ␗᪉ᛶࠊ㧗࿘Ἴ≉ᛶ࠾ࡼࡧ☢ẼගᏛ≉ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ࡇࢀࡲ࡛࡟◊✲ࢆ⾜ࡗ࡚ࡁࡓ Nd ࡟ຍ࠼࡚ࠊPrࠊEuࠊSm ࢆ⏝࠸ࡓ᪂つࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺ⭷ࡢస〇ࢆ⾜ࡗࡓࠋⷧ⭷స〇ࡣ᭷ᶵ㔠ᒓศゎ㸦MOD㸧ἲ࡟ࡼࡾ GGG ༢⤖ᬗᇶᯈୖ࡟స〇ࡋࡓࠋ⏝࠸ࡓ MOD ⁐ᾮࡣࠊ㧗⣧ᗘ໬Ꮫ◊✲ᡤ〇ࡢ PrBiFe-04(0.5/2.5/5)ࠊ
EuBiFe-04(0.5/2.5/5) SmBiFe-04(0.5/2.5/5)࡛࠶ࡿࠋMOD ⁐ᾮࢆ GGG(111)ᇶᯈୖ࡟ࢫࣆ
ࣥࢥ࣮ࢺ࡟ࡼࡿሬᕸ㸦3000 rpmࠊ30 ⛊㸧ࠊ஝⇱㸦100 °Cࠊ10 ศ㸧ࠊ௬↝ᡂ㸦450 °Cࠊ10 ศ㸧ࢆ㸳ᅇ⧞ࡾ㏉ࡋࠊ᭱ᚋ࡟ᮏ↝ᡂ㸦590-810 °Cࠊ3 ᫬㛫㸧ࢆ⾜࠸⤖ᬗ໬ࡋࡓࠋ ᅗ㸯ࡣࠊ

Pr 0.5 Bi 2.5 Fe 5 O 12 ࠊSm 0.5 Bi 2.5 Fe 5 O 12 ࠊEr 0.5 Bi 2.5 Fe 5 O 12 ⷧ⭷ࡢ 088 ᅇᢡ⥺௜㏆ࡢ㏫᱁Ꮚ࣐
ࢵࣉ࡛࠶ࡿࠋ࠸ࡎࢀࡢሙྜ࡟ࡶࠊGGG ࡢᅇᢡ⥺ࡼࡾࡶపゅᗘഃ࡟ⷧ⭷ࡢᅇᢡ⥺ࡀほᐹᅗ㸯 Pr0.5Bi2.5Fe5O12ࠊSm0.5Bi2.5Fe5O12ࠊEr0.5Bi2.5Fe5O12 ⷧ⭷ࡢ 088 ᅇᢡ⥺௜㏆ࡢ
㏫᱁Ꮚ࣐ࢵࣉ

1ࡉࢀࡓࠋࡇࢀࡽࡢⷧ⭷ࡢᅇᢡ⥺ࡣࠊ㛗ࡃఙࡧ࡚࠸ࡿࡇ࡜࠿ࡽⷧ⭷ࡀࣔࢨ࢖ࢡᵓ㐀࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡲࡓࠊᅇᢡ⥺ࡢ఩⨨ࡼࡾࠊࡍ࡭࡚ࡢⷧ⭷࡟࠾࠸࡚㠃ෆ࡟ᘬࡗᙇࡾṍࡳࡀ⏕ࡌ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡇࡢ௚ࠊ☢ẼගᏛࢫ࣌ࢡࢺࣝࡢ

ᐃ⤖ᯝ࠿ࡽࠊBi ⨨᥮㔞ࡀᮇᚅࡉࢀࡓ 2.5 ⛬ᗘฟ࠶ࡿࡇ࡜ࡶ᫂ࡽ࠿࡟࡞ࡗࡓࠋ௨ୖࡢࡇ࡜࠿ࡽࠊPrࠊEuࠊSmࢆ⏝࠸ࡓ᪂つࣅࢫ࣐ࢫ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺ⭷ࢆ GGG ᇶᯈୖ࡟ᡂ㛗ࡉࡏࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ┦ሙ 㐶ెࠊ⿇ᒣ ࿴ᩯࠊ⏣୰ ࿴⥲ࠊすᕝ 㞞⨾ࠊ▼ᶫ 㝯ᖾࠊἙཎ ṇ⨾ࠊ୰ᓥ ᬛᙪࠊᅵᒇ ဴ⏨ࠊ
͆ග MOD ἲ࡟ࡼࡿ Gd 3 Ga 5 O 12 ᇶᯈୖ࡬ࡢ Bi,Ga:Nd 3 Fe 5 O 12 ࢚ࣆࢱ࢟ࢩࣕࠊ 㟁ẼᏛ఍◊✲఍㈨ᩱࠊMAG-19-105 (2019)ࣝ⭷ࡢస〇͇࣭ ㉿ ჆Ḡࠊすᕝ 㞞⨾ࠊἙཎ ṇ⨾ࠊ▼ᶫ 㝯ᖾࠊ᭷ᶵ㔠ᒓศゎἲࢆ⏝࠸ࡓ Bi ⨨᥮ Nd⣔࣮࢞ࢿࢵࢺⷧ⭷స〇ࣉࣟࢭࢫ ࡟࠾ࡅࡿ௬↝ᡂ࡟㛵ࡍࡿ◊✲ࠊ㟁ẼᏛ఍ㄽᩥㄅ
A(ᇶ♏࣭ᮦᩱ࣭ඹ㏻㒊㛛ㄅ)ࠊVol.140 No.3 pp.131-135 (2020)㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᒣᮏ ໶, Ἑཎ ṇ⨾, ੤ᕝ 㞞⨾, ▼ᶫ 㝯ᖾ㸪᭷ᶵ㔠ᒓศゎἲ࡟ࡼࡿ Y 3 Fe 4 GaO 12 ⷧ⭷ࡢస〇࡜ホ౯㸪18p-PB1-52㸪ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪2019 ᖺ 9 ᭶ 18-21 ᪥㸪໭ᾏ㐨኱Ꮫ࣭⿇ᒣ ࿴ᩯ, ┦ሙ 㐶ె, ੤ᕝ 㞞⨾, Ἑཎ ṇ⨾, ୰ᓥ ᬛᙪ, ᅵᒇ ဴ⏨, ▼ᶫ 㝯ᖾ㸪ගMOD ἲ࡟ࡼࡿ Nd 0.5 Bi 2.5 Fe 4.5 Ga 0.5 O 12 ⷧ⭷స〇࡟࠾ࡅࡿᇶᯈ

ᗘࡢᙳ㡪㸪18p-PA5-1㸪

ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍ 2019㸪9 ᭶ 18-21 ᪥㸪໭ᾏ㐨኱Ꮫ࣭㧗ᶫ ▱அ, 㔠ཎ ໷㝯, ⣽஭ ຮ, 㢗Ọ ᐀⏨, బࠎᮌ ᩍ┿, ੤ᕝ 㞞⨾, ▼ᶫ 㝯ᖾ㸪☢
ẼගᏛ࢖࣓࣮ࢪࣥࢢ࡟ࡼࡿ☢ሙ࣋ࢡࢺࣝࡢィ㸪20p-E313-2㸪ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡

ㅮ₇఍ 2019㸪2019 ᖺ 9 ᭶ 18-21 ᪥㸪໭ᾏ㐨኱Ꮫ࣭੤ᕝ 㞞⨾, ┦ሙ 㐶ె, ⿇ᒣ ࿴ᩯ, Ἑཎ ṇ⨾, ୰ᓥ ᬛᙪ, ᅵᒇ ဴ⏨, ▼ᶫ 㝯ᖾ㸪ගMOD ἲ࡟ࡼࡾᡂ⭷ࡋࡓ Bi,Ga:Nd 3 Fe 5 O 12 ⷧ⭷ࡢ≉ᛶホ౯㸪21a-C310-8㸪ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪2019 ᖺ 9 ᭶ 18-21 ᪥㸪໭ᾏ㐨኱Ꮫ࣭┦ሙ 㐶ె, ⿇ᒣ ࿴ᩯ, すᕝ 㞞⨾, Ἑཎ ṇ⨾, ୰ᓥ ᬛᙪ, ᅵᒇ ဴ⏨, ▼ᶫ 㝯ᖾ㸪ගMOD ἲ࡟ࡼࡿ Bi ⨨᥮☢ᛶ࣮࢞ࢿࢵࢺࡢస〇࡜ホ౯㸪25pPS-12㸦9 ᭶ 25 ᪥㸧㸪᪥ᮏ☢
ẼᏛ఍㸪2019 ᖺ 9 ᭶ 25-27㸪ி㒔኱Ꮫ2ู⣬ᵝᘧ㸰㸫㸰Fe ⣔࢔ࣔࣝࣇ࢓ࢫྜ㔠ⷧ⭷ࢆ฼⏝ࡋࡓࡦࡎࡳࢭࣥࢧࡢ㛤Ⓨ
Development of strain gage using Fe-based amorphous alloy film⸨ཎ⿱ྖ࣭୕㔜኱Ꮫ࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵᒾ⏣ ⪽࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵຍ⸨๛ᚿ࣭ྡྂᒇ኱Ꮫ࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ ㌴㍕ᶵჾࡸ⏘ᴗᶵჾ࡛ࡣ㸪ᵓᡂ㒊ရࡢ≧ែ⟶⌮ࡸᨾ㞀デ᩿㸪┬࢚ࢿࣝࢠ࣮ᛶ⬟ࡢ⥔ᣢࡢࡓࡵ࡟ᚤᑠࡦࡎࡳ࣭ᛂຊࡢᖖ᫬᳨ฟࡀồࡵࡽࢀ࡚࠾ࡾ㸪⌧ᅾ㸪㧗ឤᗘࡦࡎࡳࢭࣥࢧࡢ
◊✲࣭㛤Ⓨࡀ┒ࢇ࡟࡞ࡗ࡚ࡁ࡚࠸ࡿ㸬ᮏ◊✲ࡢ┠ⓗࡣ㸪Fe ⣔࢔ࣔࣝࣇ࢓ࢫྜ㔠ⷧ⭷࡜⤯⦕యẕ┦࡟☢ᛶ㔠ᒓᚤ⢏Ꮚࢆศᩓࡉࡏࡓࢢࣛࢽ࣮ࣗࣛⷧ⭷ࢆ⏝࠸ࡓ᪂ࡋ࠸ࡦࡎࡳࢭ
ࣥࢧࡢヨస࡜ࡑࡢᛶ⬟ホ౯࡛࠶ࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲࡛ᥦ᱌ࡍࡿࡦࡎࡳࢭࣥࢧࡣ㸪኱ࡁ࡞☢ṍຠᯝࢆ♧ࡍ㌾☢ᛶⷧ⭷࡜☢⏺ࡢ༳ຍ࡟ࡼࡾ㟁Ẽ᢬ᢠࡀኚ໬㸦☢Ẽ᢬ᢠຠᯝ㸸MR ຠᯝ㸧ࡍࡿࢢࣛࢽ࣮ࣗࣛⷧ⭷࡛ᵓᡂࡉࢀࡿ㸬⣲Ꮚࡢヨస࡟ࡣ㸪Ⰻዲ࡞㌾☢Ẽ≉ᛶ࡜኱ࡁ࡞㣬࿴☢ṍ㸦⣙ 35ppm㸧ࢆ᭷ࡍࡿ࢔ࣔࣝࣇ࢓
ࢫ(a-)FeSiBNb ⷧ⭷࠾ࡼࡧ⣙ 6%ࡢ MR ຠᯝࡀᮇᚅ࡛ࡁࡿ Co-AlO ࢢࣛࢽ࣮ࣗࣛ⭷ࢆ฼⏝ࡋࡓ㸬ᅗ㸯(a)ࡣ㸪ࣜࣇࢺ࢜ࣇ࡟౑⏝ࡋࡓࣇ࢛ࢺ࣐ࢫࢡࡢ෗┿࡛࠶ࡿ㸬ᕥྑ㟁ᴟ㛫㸦‫ڧ‬㒊ศ㸧࡟ࡣࢠࣕࢵࣉࡀᏑᅾࡋ㸪タィ್ࡣ 3μm ࡛࠶ࡿ㸬ᅗ㸯(b)ࡣᐇ㝿࡟ࣜࣇࢺ࢜ࣇ࡛స〇ࡋࡓ
a-FeSiBNb ⷧ⭷ࣃࢱ࣮࡛ࣥ࠶ࡿ㸬Nb ࡣ a-FeSiB ⷧ⭷ࡢ㌾☢Ẽ≉ᛶᨵၿ࣭⪏⇕ᛶࡢྥୖࡢ
ࡓࡵ࡟ῧຍࡋ࡚࠸ࡿ㸬ࢠࣕࢵࣉ㒊ศࢆᣑ኱ࡋ࡚ホ౯ࡋࡓ࡜ࡇࢁ㸪㟁ᴟ㛫ࡢࢠࣕࢵࣉ㛗ࡣ⣙ 4μm ࡛࠶ࡗࡓ㸬ᅗ㸰ࡣ㸪a-FeSiBNb 㟁ᴟࡢࢠࣕࢵࣉ㒊ศ࡟ Co-AlO ࢢࣛࢽ࣮ࣗࣛⷧ⭷ࢆሁ✚ࡉࡏࡓ⣲Ꮚ࡟࠾ࡅࡿ MR ຠᯝࢆ♧ࡋࡓᅗ࡛࠶ࡿ㸬MR ຠᯝࡢ኱ࡁࡉࡣつ᱁໬ࡋ࡚࠶ࡿ㸬ࡲࡓ㸪
H//gap ࠾ࡼࡧ Hԋgap ࡣ☢⏺ࡢ༳ຍ᪉ྥ࡛࠶ࡾ㸪ᅗ㸯(b)࡟♧ࡋ࡚࠸ࡿ㸬ࢠࣕࢵࣉ࡟ᖹ⾜࡟☢⏺ࢆ༳ຍࡋࡓሙྜ㸦H//gap㸧㸪㟁Ẽ᢬ᢠࡢኚ໬ࡣ⦆ࡸ࠿࡛࠶ࡿࡀ㸪ࢠࣕࢵࣉ࡟ᆶ┤࡟☢⏺ࢆ༳ຍࡋࡓሙྜ㸦Hԋgap㸧ࡣ㸪㟁Ẽ᢬ᢠࡣ༳ຍ☢⏺࡟ᑐࡋ࡚ᛴ⃭࡟ῶᑡࡋ࡚࠸
ࡿ㸬ࡇࢀࡣ㸪a-FeSiBNb 㟁ᴟࡢ☢Ẽ࣮࣓ࣔࣥࢺࡀࢠࣕࢵࣉ᪉ྥࢆྥࡃࡇ࡜࡛㸪ࢠࣕࢵࣉ୰࡟ a-FeSiBNb 㟁ᴟ࠿ࡽࡢ₃
ࢀ☢⏺ࡀⓎ⏕ࡋࡓࡇ࡜ࡀཎᅉ
࡛࠶ࡿ㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪a-FeSiBNb 㟁ᴟࡢ☢Ẽ࣮࣓ࣔࣥࢺࢆไᚚࡍࡿࡇ࡜࡛㸪⣲Ꮚࡢ㟁Ẽ᢬ᢠࢆไᚚྍ⬟࡛࠶ࡿࡇ࡜ࡀ⌮ゎࡉࢀࡓ㸬ᅗ㸯 (a) ࣇ࢛ࢺ࣐ࢫࢡࣃࢱ࣮ࣥ (b) a-FeSiBNbd 㟁ᴟ3 ᅗ㸱ࡣ⣲Ꮚ࡟ᘬᙇࡦࡎࡳࢆ༳ຍࡋ࡞ࡀࡽ
ᐃࡋࡓ㟁Ẽ᢬ᢠ࡛࠶ࡿ㸬ࡦࡎࡳ༳ຍ᪉ྥࡣ H
ԋgap ᪉ྥ࡛࠶ࡾ㸪ࡦࡎࡳ༳ຍ๓࡟ H//gap ᪉ྥ࡟⣙ 5Oe ࡢእ㒊☢⏺ࢆ༳ຍࡍࡿࡇ࡜࡛㸪a-FeSiBNb 㟁ᴟࡢ☢Ẽ࣮࣓ࣔࣥࢺࡢ᪉ྥࢆ
H//gap ᪉ྥ࡟ᥞ࠼࡚࠸ࡿ㸬6.710-5 ࡢᘬᙇࡦࡎࡳࢆ༳ຍࡍࡿ࡜㟁Ẽ᢬ᢠࡀῶᑡࡋ࡚࠸ࡿࡇ
࡜ࡀࢃ࠿ࡿ㸬ࡇࢀࡣࡦࡎࡳࡢ༳ຍ࡟ࡼࡾ㸪ᅗ㸰 ࡦࡎࡳࢭࣥࢧࡢ☢Ẽ᢬ᢠ᭤⥺a-FeSiBNb 㟁ᴟࡢ☢Ẽ࣮࣓ࣔࣥࢺࡀ Hԋgap ᪉ྥ࡟ഴࡁ㸪ࢠࣕࢵࣉ࡟₃ࢀ☢᮰ࡀ⏕ࡌࡓ⤖ᯝ㸪
Co-AlO ࢢࣛࢽ࣮ࣗࣛⷧ⭷ࡢ㟁Ẽ᢬ᢠࡀῶᑡ
ࡋࡓࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࡢ⤖ᯝ࠿ࡽ㸪ᮏ◊✲࡛ᥦ᱌ࡋࡓ⣲Ꮚࡀࡦࡎࡳࢆ᳨ฟྍ⬟࡛࠶ࡿࡇ࡜ࡀ⌮ゎࡉࢀࡓ㸬ࡦࡎࡳ࡟ᑐࡍࡿ᢬ᢠኚ໬
⋡࠿ࡽồࡵࡓࢤ࣮ࢪ⋡㸦᢬ᢠኚ໬⋡㸭ࡦࡎࡳ㸧ࡣ⣙㸯㸯࡛࠶ࡾ㸪୍⯡ⓗ࡞㔠ᒓࡦࡎࡳࢤ࣮ࢪ

ᅗ㸱 ᘬᙇࡦࡎࡳᑐࡍࡿ᢬ᢠኚ໬

㸦ࢤ࣮ࢪ⋡⣙ 2㸧ࡼࡾ㧗ឤᗘ࡟ࡦࡎࡳࢆ᳨ฟ
ྍ⬟࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ࡓࡔࡋ㸪10-4௨ୖࡢ኱ࡁ࡞ࡦࡎࡳࢆ༳ຍࡍࡿ࡜㟁Ẽ᢬ᢠࡣቑຍࡋ
࡚࠾ࡾ㸪ࡇࢀࡣ㸪Co-AlO ࢢࣛࢽ࣮ࣗࣛⷧ⭷ෆࡢᚤ⢏Ꮚ㛫㝸ࡀ኱ࡁࡃ࡞ࡗࡓࡇ࡜ࡀ୍ᅉ࡛࠶
ࡿ࡜⪃࠼࡚࠸ࡿ㸬ᅗ㸲ࡣ⡆༢࡞ࣔࢹࣝࢆ౑ࡗࡓࢩ࣑࣮ࣗࣞࢩ
ࣙࣥࡢ⤖ᯝ࡛࠶ࡾ㸪ᘬᙇࡦࡎࡳ࡟ᑐࡍࡿ MR
ࡢኚ໬ࢆ♧ࡋ࡚࠸ࡿ㸬ࡇࡢ⤖ᯝ࡛ࡣ㸪MR ࡣ 1ᅗ㸲 ࡦࡎࡳᑐࡍࡿ᢬ᢠኚ໬⋡ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝ

10-4 ⛬ᗘࡲ࡛ࡢࡦࡎࡳ᳨ฟࡀྍ⬟࡛࠶ࡿࡇ࡜♧ࡋ࡚࠾ࡾ㸪᳨ฟ⠊ᅖࡣᐇ㦂⤖ᯝ࡜࡯ࡰ୍⮴ࡋࡓ㸬 ௨ୖࡢ⤖ᯝ࠿ࡽ㸪௒ᅇస〇ࡋࡓ⣲Ꮚࡣ࡯ࡰཎ⌮㏻ࡾ࡟ືసࡋ࡚࠸ࡿ࡜⪃࠼ࡿࡇ࡜ࡀ࡛
ࡁࡿ㸬௒ᚋ㸪ࢤ࣮ࢪ⋡ࡢቑຍࢆ┠ᣦࡋ㸪ᚤ⢏Ꮚ㛫㊥㞳ࡢኚ໬ࢆ⪃៖࡟ධࢀࡓ⣲Ꮚタィࢆ
⾜࠺ᚲせࡀ࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ୖ㒊ᬛஓ㸪㔝ᮎ࿘ᖹ㸪⸨ཎ⿱ྖ㸪ᑠᯘṇ㸪ᒾ⏣⪽㸪ຍ⸨๛ᚿ㸪኱ᓥ኱㍤㸪FeSiB ࢔ࣔࣝࣇ࢓ࢫⷧ⭷ࢆ⏝࠸ࡓ GIG ᆺࡦࡎࡳࢭࣥࢧࡢヨస㸪௧࿴ඖᖺᗘ㟁Ẽ࣭㟁Ꮚ࣭᝟ሗ㛵ಀᏛ఍ᮾᾏᨭ㒊㐃ྜ኱఍㸪ྡྂᒇᕷ㸪2019 ᖺ 12 ᭶ 10 ᪥㹼15 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

4ู⣬ᵝᘧ㸰㸫㸰☢ᛶ㠀☢ᛶࡢከᒙᵓ㐀ࢆ᭷ࡍࡿ༢୍☢ᛶࢼࣀ࣡࢖࣮ࣖ࡟࠾ࡅࡿ
ᕧ኱☢Ẽ᢬ᢠຠᯝࡢほ
0HDVXUHPHQWVRI*LDQW0DJQHWRUHVLVWDQFH(IIHFWLQD0DJQHWLF1DQRZLUHZLWK0DJQHWLF1RQPDJQHWLF0XOWLOD\HU6WUXFWXUHVᒣ⏣ ၨ௓࣭ᒱ㜧኱Ꮫ࣭ᕤᏛ㒊࣭ຓᩍ⸨ᮏ ┿ዉ࣭ᒱ㜧኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ಟኈ  ᖺ⳥ụ ┿⏤࣭ᒱ㜧኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ಟኈ  ᖺᔱ ╬ᏹ࣭ᒱ㜧኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ᩍᤵᒾ⏣ ⪽࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵຍ⸨ ๛ᚿ࣭ྡྂᒇ኱Ꮫ࣭ᕤᏛ㒊࣭෸ᩍᤵ኱ᓥ ኱㍤ ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗከᒙ☢ᛶࢼࣀ࣡࢖࣮ࣖࡣࠊࢼࣀࢫࢣ࣮ࣝࡢ┤ᚄ࡜࣑ࢡࣟࣥࢫࢣ࣮ࣝࡢ㛗ࡉࢆᣢࡘ࣡
࢖࣮࡛ࣖࠊᑠᆺ㟁Ꮚ㛵㐃ᶵჾࡢḟୡ௦☢Ẽࢭࣥࢧ⣲Ꮚ࡜ࡋ࡚ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋ
ᮏ◊✲ࡢ┠ⓗࡣࠊỈ⁐ᾮ㟁╔ἲ࡟ࡼࡾస〇ࡋࡓ☢ᛶ㠀☢ᛶࢼࣀ࣡࢖࣮ࣖ༢⥺࡟࠾ࡅࡿ㟁Ẽⓗ☢Ẽ≉ᛶ࡛࠶ࡿᕧ኱☢Ẽ᢬ᢠ *05 ຠᯝࢆᐃࡋࠊከᒙᵓ㐀ࡀᣢࡘ≉ᚩⓗ࡞≀ᛶ࡟ࡘ࠸࡚᫂ࡽ࠿࡟ࡍࡿࡇ࡜࡛࠶ࡗࡓࠋᮏሗ࿌࡛ࡣࠊỈ⁐ᾮ㟁╔ἲ࡛ከᒙᵓ㐀ࡢ☢ᛶࢼࣀ࣡࢖࣮ࣖࢆస〇ࡍࡿࡓࡵ࡟ᚲせ࡞᮲௳ࢆ᥈ࡿࡓࡵ࡟ࠊ࢔࣑ࣝࢼࢸࣥࣉ࣮ࣞࢺ $7 ୰࡟㟁╔ἲ࡛స〇ࡋࡓᙉ☢ᛶయࡢ 1L ࢼࣀ࣡࢖࣮ࣖࢆస〇ࠊ༢㞳ࡋࠊᚤ⣽ຍᕤ࡟ࡼࡾ࣡࢖࣮ࣖ
࡟㟁ᴟࢆ௜ࡅࡿࡇ࡜࡛ࠊ༢୍☢ᛶࢼࣀ࣡࢖࣮ࣖࡢ☢Ẽ᢬ᢠ 05 ほᙉ☢ᛶయࡢ☢໬ࡢ☢Ẽ␗᪉ᛶ࡟⏤᮶ࡋ࡚ほࢆ⾜ࡗࡓࠋࡲࡓࠊ$05 ຠᯝࢆほࢆヨࡳࡓࠋ≉࡟ࠊࡉࢀࡿ␗᪉ᛶ☢Ẽ᢬ᢠ $05 ຠᯝࡢほࡍࡿࡇ࡜࡛ࠊ༢୍☢ᛶࢼࣀ࣡࢖࣮࡛ࣖࡢ☢໬཯㌿ᣲືࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
࠙ᐇ㦂᪉ἲࠚ
ࣃࣝࢫ㟁╔ἲ࡟ࡼࡾ $7 ࡢ⣽Ꮝ Ꮝᚄ⣙  QP ୰࡟ 1L ⣽⥺ 㛗ࡉ⣙  ȝP ࢔ࣞ࢖ࢆస〇ࡋࡓࠋ;5' ࡛⤖ᬗᵓ㐀ゎᯒࠊ960 ࡛☢Ẽ≉ᛶホ౯ࠊ6(0 ࡛᩿㠃ほᐹࢆ⾜ࡗࡓࠋ$7 ࢆ 1D2+ ⁐ᾮ࡛⁐࠿ࡋࠊ1L ⣽⥺࢔ࣞ࢖࠿ࡽ 1L ⣽⥺ࢆ༢㞳ࡋࡓࠋ༢㞳ࡋࡓ 1L ⣽⥺ࢆ
6L ᇶᯈୖ࡟ศᩓࡋࠊ1L ⣽⥺ࡢ୧➃࡟㟁ᴟࢆ௜ࡅࡓࠋ㟁ᴟࡣࣇ࢛ࢺࣜࢯࢢࣛࣇ࢕࣮࡜ࢫ
ࣃࢵࢱ࡟ࡼࡿࣜࣇࢺ࢜ࣇἲ࡛స〇ࡋࠊᮦᩱࡣ 7L QP &X QP 7L QP ࡛࠶ࡿࠋ$05
ほ࡛ࡣࠊ☢ሙ㟁ὶゅᗘ౫Ꮡᛶᐃ࡜ࡋ࡚ࠊ༳ຍ☢ሙ HDS  㹼 N2H ࢆ୍ᐃ࡟ࡋࠊ⣽⥺㛗ᡭ᪉ྥ࡜༳ຍ☢ሙ᪉ྥࡢ࡞ࡍゅᗘࢆ ș ࡜ࡋࠊș aࡢ⠊ᅖ࡛ᐃࢆ⾜ࡗࡓࠋ

࠙ᐇ㦂⤖ᯝࠚ
)LJ ࡟ 1L ⣽⥺࢔ࣞ࢖ヨᩱࡢ ;5' ࡟ࡼࡿ⤖ᬗᵓ㐀ゎᯒ⤖ᯝࠊ)LJ ࡟ 960 ࡟ࡼࡿ☢

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Evaluation of electron phase diffractive elementబ⸨ಇ୍࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵୖᮡ♸㈗࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ຓᩍ⚟ᓥᾴኴ࣭ᮾ໭኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ಟኈㄢ⛬㰻⸨᫭࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ࣮ࣞࢨ࣮ᖸ΅ຍᕤἲ࡟ࡼࡗ࡚ࠊ㟁Ꮚࡀ༑ศ࡟㏱㐣࡛ࡁࡿⷧ࠸⭷≧ᮦᩱࡢᚤ⣽ຍᕤᢏ⾡ࡢ㛤Ⓨࡣ㔜せ࡞ㄢ㢟ࡢࡦ࡜ࡘ࡛࠶ࡾࠊࡑࡢᛂ⏝࡜ࡋ࡚㟁Ꮚ࡟ᑐࡍࡿ఩┦ᅇᢡ⣲Ꮚࡢస〇ࡀᣲࡆࡽࢀࡿࠋᮏ◊✲࡛ࡣࠊస〇ࡋࡓ఩┦ᅇᢡ⣲Ꮚ࡟ᑐࡋ࡚㟁Ꮚ㢧ᚤ㙾ࢆ⏝࠸࡚㟁Ꮚࡢ↷ᑕ࡜㏱㐣㟁Ꮚീࡢほᐹࢆ⾜࠸ࠊ㟁Ꮚᅇᢡ⣲Ꮚ࡜ࡋ࡚ࡢᶵ⬟࡜≉ᛶࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜
ࢆ┠ⓗ࡜ࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾࡛⏝࠸ࡿ 200 keV ࡢ㟁Ꮚ⥺࡟ᑐࡋ࡚ࠊ఩┦㐜ᘏᯈ࡜ࡋ࡚ᶵ⬟ࡍࡿཌ
ࡉ 35 nm ࡢࢩࣜࢥࣥⷧ⭷ࢆ⏝ពࡋࠊἼ㠃࡟ᵓ㐀ࢆ௜୚ࡋࡓࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ⏝࠸࡚࣍ࣟࢢࣛࣇ࢕ࢵࢡࣃࢱ࣮ࣥࢆⷧ⭷࡟ᅗ 1 ࡟♧ࡍࡼ࠺࡟ຍᕤ࣭㌿෗ࡋࡓࠋྡྂᒇ኱Ꮫ࡟࠾
࠸࡚ࠊ200 keV 㟁Ꮚ⥺ࢆ⏝࠸ࡓ㟁Ꮚ Vortex ࡢⓎ⏕ᐇ㦂ࢆ⾜࠸ࠊࢩ࣑࣮ࣗࣞࢩࣙࣥ࡜ࡢẚ㍑࠿ࡽ 19%௨ୖࡢ㧗࠸ᅇᢡຠ⋡ࢆ᭷ࡍࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ㏆ᖺࠊ㟁Ꮚ⥺⏝ࡢ࣍ࣟࢢ࣒ࣛ
ࢆ⏝࠸ࡓ Vortex ࣅ࣮࣒ࡸࠊBessel ࣅ࣮࣒ࠊAiry ࣅ࣮࣒࡜࠸ࡗࡓᵓ㐀໬ࡉࢀࡓἼ㠃ࢆ᭷ࡍࡿ㟁Ꮚࣅ࣮࣒ࡢⓎ⏕࡜฼⏝ࡀὀ┠ࡉࢀ࡚࠸ࡿࡀࠊࡇࢀࡲ࡛࡟ሗ࿌ࡉࢀࡓ㟁Ꮚ࣍ࣟࢢ࣒ࣛ
ࡣࠊ1. 㞟᮰࢖࢜ࣥࣅ࣮࣒࡟ࡼࡿ」㞧࡞〇స㐣⛬ࡀᚲせ࡛࠶ࡿࠊ2. ࢫࣜࢵࢺ≧ࡢ᣺ᖜ࣍ࣟࢢ࣒ࣛ࡜࡞ࡾᅇᢡຠ⋡㸦ᵓ㐀໬ࣅ࣮࣒ࡢ⏕ᡂຠ⋡㸧ࡀప࠸㸦ཎ⌮ⓗ࡟ 10.1%௨ୗ㸧ࠊ࡞࡝ࡢᛂ⏝ୖࡢၥ㢟ࡀ࠶ࡗࡓࠋᮏ◊✲ࡢᡂᯝࡣࠊࡇ࠺ࡋࡓㄢ㢟ࢆඞ᭹ࡋ࡚ᵓ㐀໬㟁Ꮚࣅ࣮࣒ࡢᛂ⏝ᢏ⾡ࡢ㛤Ⓨࢆಁ㐍ࡍࡿࡶࡢ࡛ࠊࣇ࢙࣒ࢺ
⛊࣮ࣞࢨ࣮࡟ࡼࡿ࣮ࣞࢨ࣮ᖸ΅ຍᕤࡀࠊᅇᢡຠ⋡ࡢ㧗࠸఩┦࣍ࣟࢢ࣒ࣛࢆࢩࣥࢢࣝࢩࣙࢵࢺ࡛స〇࡛ࡁࡿࡇ࡜ࢆᐇドࡋࡓࠋ㛤Ⓨࡋࡓ㟁Ꮚࣅ࣮࣒ࡢᅇᢡ⣲Ꮚࡣࠊ⭷ཌࡀ༑ศ࡟
ⷧ࠸ࡓࡵࠊ㟁Ꮚࡢ㏱㐣⋡ࡀ㧗ࡃࠊ఩┦⣲Ꮚ࡜ࡋ࡚ᶵ
⬟ࡋ࡚࠸ࡿࠋཎ⌮ⓗ࡟ࡣ 40%ࡢຠ⋡ࡀᮇᚅ࡛ࡁࡿࡓ
ࡵࠊ௒ᚋࡣᮦᩱࡢ㑅ᐃࡸຍᕤ⢭ᗘࡢྥୖࢆᅗࡿࡇ࡜
࡟ࡼࡗ࡚ᅇᢡຠ⋡ࡢྥୖࢆ┠ᣦࡍࠋࡉࡽ࡟ࠊ≉ᐃࡢḟᩘࡢᅇᢡࡔࡅ࡟㞟୰࡛ࡁࡿࣈ࣮ࣞࢬᶵ⬟ࢆ௜ຍᅗ 1 స〇ࡋࡓ㟁Ꮚ Ⓨ⏕⏝ࡍࢀࡤࡑࡢຠ⋡ࡣ⌮ㄽୖ 100㸣࡜࡞ࡾࠊගᏛࡢศ㔝ࡢᅇᢡ⣲Ꮚࡢ SEM ീ

7࡛౑⏝ࡉࢀࡿᅇᢡ⣲Ꮚ࡜ྠ➼ࡢຠ⋡ࡀᮇᚅࡉࢀࡿࠋ≉࡟ࠊ㟁Ꮚ ࣅ࣮࣒ࡣࠊ☢ᛶయ࠾ࡼࡧ☢ሙࢆ㧗ឤᗘ࡟᳨ฟࡍࡿࣉ࣮ࣟࣈ࡜ࡋ࡚ᶵ⬟ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀࠊḟୡ௦┬࢚ࢿ࣓ࣔࣜࡸ㧗ᛶ⬟࣮ࣔࢱ࣮㛤Ⓨࡢࡓࡵࡢ☢ᛶᮦᩱ➼ࡢඛ➃ᮦᩱࡢィ ࣭ศᯒ᪉ἲ࡜ࡋ࡚ά⏝ࡉࢀࠊ㠉᪂ⓗ┬࢚ࢿࣝࢠ࣮ࡢᐇ⌧࡟ᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Y. Uesugi, R. Fukushima, K. Saitoh, S. Sato, Creating electron phase holograms using
femtosecond laser interference processing, Opt. Express, 27(15), 20958-20964 (2019).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Y. Uesugi, R. Fukushima, S. Sato, and K. Saitoh, Laser Interference Processing of Electron
Phase Holograms by Using a Femtosecond Laser, Conference on Lasers and Electro-Optics,
San Jose, USA, May 5-10, 2019࣭ ୖᮡ♸㈗㸪⚟ᓥᾴኴ㸪బ⸨ಇ୍㸪ᨭᣢᇶᯈࡢ࡞࠸ⷧ⭷ࡢ࣮ࣞࢨ࣮ᖸ΅ຍᕤ࡟ࡼࡿ఩
┦ᅇᢡ᱁Ꮚࡢస〇࡜㟁ᏊⓎ⏕࡬ࡢᛂ⏝㸪ᅜ㝿ගࢹ࣮ࢩ࣏ࣥࢪ࣒࢘㸪᪥ᮏᏛ⾡఍㆟ㅮᇽ㸪2019 ᖺ 6 ᭶ 28 ᪥.
࣭ ⚟ᓥ ᾴኴࠊୖᮡ ♸㈗ࠊ㰻⸨ ᫭ࠊబ⸨ ಇ୍㸪ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ⷧ⭷ຍᕤἲ࡟ࡼ
ࡿ㟁Ꮚ఩┦࣍ࣟࢢ࣒ࣛࡢస〇㸪➨ 80 ᅇᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪໭ᾏ㐨኱Ꮫ㸪
2019 ᖺ 9 ᭶ 17 ᪥㹼20 ᪥.
࣭ ⚟ᓥ ᾴኴࠊୖᮡ ♸㈗ࠊ㰻⸨ ᫭ࠊబ⸨ ಇ୍㸪஧ග᮰ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ⷧ⭷ຍᕤ࡟ࡼࡿ㟁Ꮚ఩┦࣍ࣟࢢ࣒ࣛࡢస〇㸪➨ 74 ᅇᛂ⏝≀⌮Ꮫ఍ᮾ໭ᨭ㒊Ꮫ⾡ㅮ₇఍㸪᪥ᮏ኱ᏛᕤᏛ㒊㸪2019 ᖺ 12 ᭶ 2 ᪥㹼3 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

8

別紙様式２－２

収差補正電子顕微鏡を用いた
金属ナノ粒子触媒の三次元計測手法の開発
Development of a three-dimensional measurement method of
metal nanoparticle catalysts using aberration-corrected TEM
山﨑 順・大阪大学・超高圧電子顕微鏡センター・准教授
吉田健太・東北大学・金属材料研究所・准教授
齋藤 晃・名古屋大学・未来材料・システム研究所・教授
１．研究目的
本研究では、燃料電池電極部などで高機能触媒として機能する金属ナノ粒子の三次元分
布を電子顕微鏡で計測する新たな手法として、収差補正 TEM の高さ分解能（電子線透過方向への分解能）を活用した動画撮影に基づく計測手法を開発する。活性の異なる白金ナノ
粒子触媒の計測結果を比較し、三次元構造の差異と活性との関連を調べることを目的とする。

２．研究内容と成果
本研究で開発を目指す三次元計測法に必須な実験設備は、結像系収差補正装置を備えた透過電子顕微鏡（収差補正 TEM）である。さらにレンズのフォーカス変更に伴う余分なレンズ収差の発生を避けるため、モーター駆動では無くピエゾ駆動の試料高さ変更機構を有する装置が望ましい。これらを備えた数少ない装置として、名大未来研の齋藤教授が所有する電子顕微鏡を実験に用いた。

図１ 像シミュレーションによって解明した、金ナノ結晶の収差補正 TEM 像における正焦点位置の電子線入射方位依存性。左図は立方晶結晶の対称性を考慮した最小立体角範囲における格子縞コントラスト極小条件、右図はコントラスト極小位置の模式図。
従来の高分解能 TEM 結像理論は、弱位相物体近似と呼ばれる一種の運動学的近似に基づいたものであり、この近似に基づく限りナノ粒子の中央位置に焦点を合わせた場合に収差補正 TEM 像の格子縞コントラストが極小となることを、近年代表者らは主張し9ている。本研究では、コントラスト極小焦点位置を検出することによりナノ粒子の三次元位置を読み取ることに取り組んでいるが、上記の近似範囲を超えて計測精度を向上させるため、入射電子線の動力学回折効果について電子顕微鏡像シミュレーションに基づ
く検証を行った。金結晶について様々な入射方位についてのシミュレーションを系統的に行った結果、主要晶帯軸入射および特に回折効果の強い菊池バンドに沿ったごく一部の入射方位を除き、直径 5nm 以内の粒子では中央位置から下方に 1±1nm シフトした高さにコントラスト極小焦点位置が存在することが明らかとなった（図１）。
図２ 25 度傾斜したカーボン
膜上ナノ粒子の電顕像と、その解析によって得られた三次元分布。計測された各ナノ粒子の高低差は、本来のカーボン膜の傾斜角度と一致しており、高い精度での三次元計測に成功している。
この知見に基づき、カーボン薄膜に担持された金ナノ粒子をテスト試料として、３次元計測を行った。図２に示すように、膜状試料を故意に傾斜して撮影した TEM 像
からナノ粒子の高低差を計測したところ、膜の傾斜角度を再現する結果が得られた。
従来の傾斜シリーズ電子線トモグラフィーで計測する場合 30 分から１時間程度の電子ビーム照射を必要とし、その間の照射ダメージが大きな問題となる。一方今回開発した手法では 30 秒から１分での計測が可能であり、画期的な成果であるといえる。
燃料電池用の触媒材料として用いられるカーボン担持白金ナノ触媒の三次元分布計
測への応用を今後目指していく。

【研究成果の公表状況】＜国際・国内会議＞
・ Jun Yamasaki, Masaki Kano, Koh Saitoh, Kenta Yoshida, Keita Kobayashi, and Nobuo
Tanaka, "Analysing 3D distribution of nanoparticles by aberration-corrected TEM focal
series", The Fifth Conference on Frontiers of Aberration Corrected Electron Microscopy(PICO2019), Kasteel Vaalsbroek, the Netherlands, 6-10 May 2019.
・山﨑 順，鹿野 正起，齋藤 晃，吉田 健太，小林 慶太 「収差補正 TEM のスルーフォーカスシリーズに基づく金属ナノ粒子三次元分布計測法の開発」 応用物理学会
第 80 回秋季学術講演会，北海道大学, 2019 年 9 月 18 日～21 日.
・J. Yamasaki, M. Kano, K. Saitoh, K. Yoshida, K. Kobayashi, and N. Tanaka, "Analyzing 3D
Distributions of Au/Pt Nanoparticles by Focal Series of Aberration-Corrected TEM Images",International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019),
Nagoya University, 1-3 November 2019.

10ู⣬ᵝᘧ㸰㸫㸰ඛ➃ᮦᩱ㛤Ⓨࡢࡓࡵࡢ㟁Ꮚ࣎ࣝࢸࢵࢡࢫ࢖࣓࣮ࢪࣥࢢ◊✲Electron vortex imaging study for development of advanced materialsෆ⏣ṇဢ࣭ᇸ⋢ᕤᴗ኱Ꮫ࣭ඛ➃⛉Ꮫ◊✲ᡤ࣭ᩍᤵ㰻⸨᫭࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭ᩍᤵ
▼⏣㧗ྐ࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭ຓᩍ

㸯㸬◊✲┠ⓗ ⏦ㄳ⪅㸦ෆ⏣㸧ࡽ࡟ࡼࡾୡ⏺࡛ึࡵ࡚㟁Ꮚ࣎ࣝࢸࢵࢡࢫࣅ࣮࣒ࡀ⏕ᡂࡉࢀࡓ (Nature,2010)ࠋ㟁Ꮚ࣎ࣝࢸࢵࢡࢫࣅ࣮࣒ࡣ࣎ࣝࢸࢵࢡࢫ (఩┦≉␗Ⅼ)ࠊ㔞Ꮚ໬ࡋࡓ㌶㐨ゅ㐠ື㔞ࢆࡶࡘࣘࢽ࣮ࢡ࡞≉ᛶࢆ᭷ࡍࡿ㟁Ꮚࣅ࣮࣒࡛࠶ࡿࠋࡇࢀࡲ࡛⏦ㄳ⪅ࡽࡢࢢ࣮ࣝࣉࢆྵ
ࡵࠊᇶ♏◊✲ࡢࡳ࡞ࡽࡎᵝࠎ࡞ᛂ⏝ࢆぢᤣ࠼ࡓ◊✲ࡀୡ⏺ⓗ࡟⾜ࢃࢀ࡚ࡁࡓࠋᮏ◊✲ࡢ┠ⓗࡣࠊྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤࡢ◊✲⪅࡜ඹྠ࡛཰ᕪ⿵ṇ㟁Ꮚ㢧ᚤ㙾ࠊࢫࣆࣥ೫ᴟ㟁Ꮚ㢧ᚤ㙾➼ࢆ㥑౑ࡋࠊ㟁Ꮚ࣎ࣝࢸࢵࢡࢫࣅ࣮࣒ࡢ≉ᛶࢆ⏝࠸ࡓ᪂ࡋ࠸㔞Ꮚ࢖࣓࣮ࢪࣥࢢࡢᡭἲࢆ㛤ᣅࡍࡿࡇ࡜࡛࠶ࡿ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ

㟁Ꮚ࣎ࣝࢸࢵࢡࢫࣅ࣮࣒ࡢ≉ᛶࢆ⏝࠸ࡓ᪂ࡋ࠸ᮦᩱศᯒᡭἲࠊ᪂ࡋ࠸㔞Ꮚ࢖࣓࣮ࢪ
ࣥࢢࡢᡭἲࢆ㛤ᣅࡍࡿࡓࡵࠊ㌶㐨ゅ㐠ື㔞(OAM)ࡢ᳨ฟჾࡢ㛤Ⓨࢆ⾜ࡗࡓࠋලయⓗ࡟ࡣࠊపḟ࡜㧗ḟࡢᅇᢡᙉᗘࡀ➼ࡋࡃ࡞ࡿࠕࢲ࣐ࣥࣥ
᱁Ꮚࠖࢆ࣮࣋ࢫ࡟ࠊ࣎ࣝࢸࢵࢡࢫࣅ࣮࣒ࢆ⏕ᡂࡍࡿࠕ㸰ḟඖࢲ࣐ࣥࣥ

ᅇᢡ᱁Ꮚࠖࡢࣃࢱ࣮ࣥタィ࠾ࡼࡧ FIB ࢆ⏝࠸ࡓస〇ࢆ⾜ࡗࡓࠋస〇ࡋࡓࠕ㸰ḟඖࢲ࣐ࣥࣥᅇᢡ᱁Ꮚࠖࢆྡྂᒇ኱Ꮫࡢ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾࡟ᦚ㍕ࡋࠊOAM ࢆࡶࡘ㟁Ꮚࣅ࣮࣒ࡢ OAM ࢫ࣌ࢡࢺࣝࢆᐃࡋࡓࠋᅗ㸯ࡣࢫࣃ࢖ࣛࣝࢰ࣮ࣥࣉ࣮ࣞࢺ

࡟ࡼࡾ⏕ᡂࡋࡓ OAM 㟁Ꮚࣅ࣮࣒ࡢሙྜࡢ OAM ࢫ࣌ࢡࢺࣝ⤖ᯝ࡛࠶ࡿࠋࡲࡓࢼࣀ☢ᛶయ࡟ᑐࡋ࡚ࡶ㐺⏝ࡋ OAM ࢫ࣌ࢡࢺࣝࢆᚓࡓࠋࡇࢀࡽࡢ⤖ᯝࡣ⧳ࡵࡽ
ࢀᅜ㝿ㄅㄽᩥ࡜ࡋ࡚Ⓨ⾲ࡉࢀࡓࠋ௒ᚋࠊ㛤Ⓨࡋࡓ
OAM ᳨ฟჾࢆ⏝࠸࡚ࠊ✀ࠎࡢᮦᩱ࡟ᑐࡋ OAM ᳨ฟࠊ
OAM ࢫ࣌ࢡࢺࣝࡢ ᐃࢆ⾜࠺ணᐃ࡛࠶ࡿࠋᮏ◊✲࡟ࡼࡾࠊ᪂ࡋ࠸ᮦᩱศᯒἲࠊ᪂ࡋ࠸㔞Ꮚ࢖࣓࣮ࢪࣥࢢ
ἲࡀ๰ฟࡉࢀࡿࡇ࡜ࡀᮇᚅࡉࢀࡿࠋ

11ᅗ㸯ࠕ㸰ḟඖࢲ࣐ࣥࣥ ᱁Ꮚࠖ࡟ࡼࡗ࡚ ᐃࡋࡓ OAM㸦0ΰ,
s6ΰ㸧ࢆࡶࡘ㟁Ꮚࣅ࣮࣒ࡢ
OAM ࢫ࣌ࢡࢺࣝ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Y. Noguchi, S. Nakayama, T.Ishida, K. Saitoh, and M. Uchida, “Efficient measurement of theorbital angular momentum spectrum of an electron beam via a Dammann vortex grating”,
Phys. Rev. Applied. 12, 064062 (2019).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭≉࡟࡞ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ12┬㺒㺦㺷㺕㺼㺎໬ࢆಁ㐍ࡍࡿ⪏ೃᛶ IoT 㺡㺼㺨㺼㺐㺛ࡢᙉᗘタィᇶ‽࡟㛵ࡍࡿ◊✲
Study on strength design standards in environmental-resistant IoT devices forenergy-saving promotion㧗ᶫྍᫀ 㛵す኱Ꮫ ࢩࢫࢸ࣒⌮ᕤᏛ㒊 ෸ᩍᤵṊ⸨ಇ௓ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ᩍᤵ㸯㸬◊✲┠ⓗ ♫఍࡟ᩓᅾࡍࡿ㺒㺦㺷㺕㺼㺎ᶵჾࢆࠊࡑࡢ኱ᑠࢆၥࢃࡎ IoT(Internet of Things)ᢏ⾡࡟ࡼࡾ⼥ྜࡋࠊⓗ☜࡞㺒㺦㺷㺕㺼㺎㟂せண ࡜↓㥏ࢆ┬࠸ࡓ㓄ศࢆ㐩ᡂࡍࡿ㺐㺻㺪㺵㺚㺛㺡㺯࡬࡜㐍໬ࡉࡏࡿࡇ
࡜ࡀᛴົ࡛࠶ࡿࠋࡑࡢᐇ⌧ࡢ㘽ࢆᥱࡿࡢࡣࠊᶵჾࢆᖖ᫬㺱㺤㺞㺎ࡍࡿࡓࡵࡢᏳ౯࡛ಙ㢗ᛶࡢ㧗࠸ᑠᆺ⪏ೃᛶ㺡㺼㺨㺼㺐㺛ࡢ⇿Ⓨⓗᬑཬ࡛࠶ࡿࠋ୍᪉ࠊ㺡㺼㺨㺼㺐㺛ࡢᙉᗘタィࢆྜ⌮ⓗ࡟⾜࠺ࡓࡵࡢຊᏛⓗᣦ㔪࡟ࡣ☜ᅛࡓࡿࡶࡢࡀ↓ࡃࠊ⤒㦂࡟㢗ࡿ࡜ࡇࢁࡀ኱ࡁ࠸ࠋᮏ◊✲࡛ࡣࠊ㟁Ꮚ㢧ᚤ㙾ෆ࡟࠾࠸࡚ࠊ㺡㺼㺨㺼㺐㺛ࢆᵓᡂࡍࡿ㺭㺐㺖㺹㺛㺗㺎㺷ࡢᵝࠎ࡞ᚤᑠせ⣲ࢆ⏝࠸ࡓࠕຊᏛⓗ࡞ᙉᗘホ౯ࠖ࡜ᙉᗘྥୖ࡟⧅ࡀࡿࠕᮦᩱᏛⓗ᝟ሗࡢᢳฟࠖࢆྠ᫬࡟㐩ᡂࡍࡿ࡜ඹ࡟ࠊᙉᗘ
ỴᐃᅉᏊࢆෆໟࡋࡓྜ⌮ⓗ࡞タィ࣭ホ౯ᇶ‽ࡢ࠶ࡾ᪉࡟ࡘ࠸࡚⪃ᐹࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ୖグ┠ⓗࢆ㐩ࡍࡿୖ࡛ሗ࿌⪅ࡽࡀ㔜せどࡋ࡚࠸ࡿࡢࡣࠊ␗࡞ࡿᮦᩱࡢ᥋ྜ⏺㠃ᙉᗘ≉ᛶ࡛࠶ࡿࠋ⏺㠃࡟ἢࡗࡓ๤㞳◚ቯࡢⓎ⏕ᙉᗘࢆዴఱ࡟ࡋ࡚ᐃ㔞ⓗ࡟ᢅ࠺࠿ࡣࠊ࡜ࡾࢃࡅ
タィୖࡢ㘽࡜࡞ࡿࠋ๓ᖺᗘࡣࠊ㺨㺼㺷㺖ᮦᩱࡢᙉᗘホ౯࡟࠾࠸୍࡚⯡ⓗ࡞◚ቯຊᏛࡢᴫᛕࡀ
㺭㺐㺖㺹㺛㺗㺎㺷ࡢヨ㦂∦࡟ࡶ᭷ຠ࡛࠶ࡿ࠿ྰ࠿ࢆཝᐦ࡟᳨ドࡍ࡭ࡃࠊእᙧ≧㸦༶ࡕᕧどⓗ㈇Ⲵ
ᙧែ㸧ࡀ␗࡞ࡿヨ㦂∦ࢆ⏝࠸࡚ᐇ㦂ゎᯒࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊ┿✵୰࡟࠾࠸࡚ࡣ⏺㠃➃㒊㏆ഐࡢV = K/rO࡛⾲ࡉࢀࡿ₞㏆ᛂຊሙ(≉␗ᛂຊሙ)ࢆ௦⾲ࡍࡿ㺨㺽㺵㺰㺎㺞㺎 K ࡟ࡼࡗ࡚◚ቯᙉᗘࢆ୍ព࡟⾲⌧࡛ࡁࡿ(◚ቯຊᏛ๎ࡀ㐺⏝ྍ⬟࡛࠶ࡿ)ࡇ࡜ࡀ♧ࡉࢀࡓࠋࡓࡔࡋ K ࡢḟඖ࡟ࡣ⏺㠃➃㒊ࡢ㛤ࡁゅ࡟౫Ꮡࡍࡿ≉␗ᛶᣦᩘOࡀෆໟࡉࢀ࡚࠸ࡿࡓࡵࠊ௵ពࡢ㛤ࡁゅ(ᅗ 1 ཧ↷)࡟ᑐࡍࡿྠຊᏛ๎ࡢ㐺⏝ྍ⬟ᛶࡣ౫↛୙࡛᫂࠶ࡿࠋ᭦࡟ࠊ๓ᖺᗘࡣỈ⣲ࢆྵ᭷ࡍࡿ㺔㺼㺛(N2-H2 ΰྜ㺔㺼㺛)୰࡟࠾ࡅࡿᙉᗘࡀ┿✵୰ࡼࡾపୗࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࡀࠊ
ᙉᗘపୗࡢཎᅉࡀỈ⣲ࡢࡳ࠿ྰ࠿ᮍ᳨ド࡛࠶ࡿࠋ

Type Ia

Type Ib

Type Ic

ࡑࡇ࡛ࠊࡲࡎ 3 ✀㢮ࡢ㛤ࡁゅࢆᣢࡘษḞࡁࢆ᪋ࡋࡓヨ㦂∦(๓CSi

Cu SiNᖺᗘ࠿ࡽࡢ⥆ࡁ࡛ Type Ia㸪Ib㸪
Ic ࡜⾲グ)ࢆᑐ㇟࡟ᙉᗘホ౯ࢆᐇ᪋ࡋࡓ(ᅗ 1)ࠋヨ㦂∦ࡣ Si ᇶᯈୖ

1 Pm

ᅗ1 䝬䜲䜽䝻ヨ㦂∦䛾䛭䛾ሙほᐹ◚ቯᐇ㦂

13

15

Applied load F, PN

࡟ Cu ⭷࡜ SiN ⭷ࢆሁ✚ࡋࡓᮦᩱ࠿ࡽ FIB ࢆ⏝࠸ࡓ㺭㺐㺖㺹㺙㺻㺪㺽㺶㺻㺖㺼ἲ࡟ࡼࡾస〇ࡋࡓࠋࡇࡢヨ㦂∦ࢆ㺣㺧㺐㺻㺡㺼㺻㺢㺬㺷㺞㺼㺎(HN200E)࡬ྲྀࡾ௜ࡅࠊ཯ᛂ⛉Ꮫ㉸㧗ᅽ㟁Ꮚ㢧ᚤ㙾(RSHVEM)୰࡟࠾࠸࡚ࡑࡢሙほᐹࡋ࡞ࡀࡽ◚ቯᐇ㦂ࢆ⾜ࡗࡓࠋᅗ 2 ࡟Ⲵ㔜᭤⥺ࡢ୍౛ࢆ♧ࡍࠋᮏᐇ㦂⤖ᯝࢆᇶ࡟ࠊ⏺㠃࡟ἢࡗ࡚๤㞳◚ቯࡀⓎ⏕ࡍࡿ᫬Ⅼ

Fc

B

10

5

C

0

A

(ᅗ୰ B Ⅼ)࡟࠾ࡅࡿᛂຊศᕸࢆ 3 ḟඖ᭷㝈せ⣲ἲ࡟ࡼ

0

50

100

Time t, sࡾゎᯒࡋࡓࠋゎᯒ࡛ࡣ࠸ࡎࢀࡢᮦᩱࡶᙎᛶయ࡛࠶ࡿ࡜

ᅗ2 ㈇Ⲵ᭤⥺䠄Type Ia䛾౛䠅௬ᐃࡋࡓࠋゎᯒ⤖ᯝࢆᅗ 3 ࡟♧ࡍࠋษḞࡁᗏ㒊㏆ഐࡢ(O)ࢆ᭷ࡍࡿࠋ1~10 nm ࡟࠾ࡅࡿᆶ┤ᛂຊࡣ㏆࠸್ࢆྲྀࡾࠊࡲࡓࡏࢇ᩿ᛂຊࡼࡾࡶ኱ࡁ࠸ࠋࡑࡇ࡛ᆶ
┤ᛂຊ≉␗ሙࡢ K ࠾ࡼࡧO࡟╔┠ࡋࠊ(K, O)ࡢ 2 㺨㺽㺵㺰㺎㺞㺎࡟ࡼࡗ࡚ᙉᗘホ౯ࡋࡓ⤖ᯝࢆᅗ 4 ࡟♧ࡍࠋK
ࡀOࡢῶᑡ㛵ᩘ࡜࡞ࡿഴྥࢆ♧ࡋࠊ㺭㺖㺹ᵓ㐀య࡟࠾࠸࡚ࡣ▱ࡽࢀ࡚࠸ࡿᗈ⩏ࡢ◚ቯຊᏛ๎ࡀᡂ❧ࡍࡿࡇ࡜ࡀศ࠿ࡿࠋ
Ỉ⣲ྵ᭷㺔㺼㺛(N2-H2)ཬࡧ⣧ N2 㺔㺼㺛୰࡟࠾ࡅࡿᙉ

105

Stress along interface Vx , Wxy [MPa]≉␗ᛂຊሙࡣヨ㦂∦ Type ẖ࡟␗࡞ࡿ≉␗ᛶᣦᩘ

Vac.
R.T.

104

10 3
10 2

Vx Wxy
101

100
10-9

ᗘࡣ┿✵୰ࡼࡾࡶῶᑡࡋ࡚࠸ࡿࠋ≉࡟ N2 㺔㺼㺛࡟ࡼ

Ia (
Ib (
Ic (

=0.457)=0.382)=0.247)

10-8

10-7

10-6

Distance from free-edge r [m]ࡿᙉᗘపୗస⏝ࡀ᝿ᐃእ࡟㢧ⴭ࡛࠶ࡗࡓࠋ༶ࡕࠊ ᅗ3 ๤㞳◚ቯⓎ⏕᫬䛾ᛂຊศᕸẚ㍑
ࡗࡓྍ⬟ᛶࡀ࠶ࡿࠋ
௨ୖࡢ⤖ᯝࡣࠊ㢧ᚤ㙾ෆ࡟࠾ࡅࡿᮦᩱᙉᗘホ౯ࢆᐇ᪋ࡍࡿୖ࡛㺔㺼㺛✀ࢆྵࡵࡓᐇ㦂᮲௳ࡢὀព῝࠸㑅ᐃࡀ㔜せ࡛࠶ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
࣭Y. Takahashi et al., Direct observation of fatigue
crack tips in a single-crystalline Ni-based
superalloy,

ICMaSS2019,

NagoyaUniv.,

Critical stress intensity factor K [MPamO]⏺㠃ୖࡢ Si ࡜ N ࡀ཯ᛂࡍࡿ࡞࡝ࡢ๪స⏝ࡀᙉ࠿

25

Vac. N2/H2 gas N2 gas
TypeA
TypeD

20

Type E

15

10

5

0
0.2

0.3

0.4

0.5

Critical stress singularity index

ᅗ4 ๤㞳◚ቯⓎ⏕ᙉᗘ䛾ẚ㍑

2019.11.1-3.

࣭ 㧗ᶫྍᫀ ௚ 5 ྡ㸪ࡑࡢሙ ETEM/㺣㺧㺐㺻㺡㺼㺻㺢ἲࢆ⏝࠸ࡓ㺭㺐㺖㺹せ⣲⏺㠃ࡢ๤㞳ᙉᗘホ౯㸪᪥ᮏ㢧ᚤ㙾Ꮫ఍➨ 75 ᅇᏛ⾡ㅮ₇఍㸪ྡྂᒇᅜ㝿఍㆟ሙ㸪2019 ᖺ 6 ᭶ 17 ᪥㹼19㸬
࣭ ᓊᮏせ㸪㧗ᶫྍᫀ ௚ 3 ྡ㸪Si/Cu ࣐࢖ࢡࣟせ⣲⏺㠃➃࠿ࡽࡢ๤㞳ࡁ⿣Ⓨ⏕ᙉᗘ㸫⏺
㠃➃ᙧ≧࣭⎔ቃࡢᙳ㡪㸫㸪᪥ᮏᶵᲔᏛ఍㛵すᨭ㒊➨ 95 ᮇᐃ᫬⥲఍ㅮ₇఍㸪ྠᚿ♫኱Ꮫ㸪2020 ᖺ 3 ᭶ 11 ᪥㹼12 ᪥.

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In-situ TEM-MS of methanation using hydrogen storage alloys୰ᕝ㕲Ỉ࣭⌰⌫኱࣭⌮࣭ຓᩍࠊᑠᯘ⌮Ẽ࣭⌰⌫኱࣭⌮࣭ຓᩍᅵᒱ▱ᘯ࣭⌰⌫኱࣭⌮࣭෸ᩍᤵࠊⰼ⏣ಙᏊ࣭᪩✄⏣኱࣭⌮ᕤ࣭ㅮᖌṊ⸨ಇ௓࣭ྡྂᒇ኱Ꮫ࣭IMaSS࣭ᩍᤵ㸯㸬◊✲┠ⓗᮏࢢ࣮ࣝࣉࡣỈ⣲྾ⶶྜ㔠ࢆ CO 2࣭Ỉ⣲ΰྜ࢞ࢫ୰࡛ຍ⇕ࡍࡿ࡜ࠊ୍㓟໬Ⅳ⣲ࡸ࣓ࢱࣥ࡞࡝ࡢⅣ໬Ỉ⣲ࢆ⏕ᡂࡍࡿ཯ᛂࢆⓎぢࡋࡓࠋࡋ࠿ࡋ࡞ࡀࡽྠ཯ᛂࡣ㠀ᖖ࡟཯ᛂ⋡ࡀప࠸ࡓࡵࠊ཯ᛂࡢຠ⋡࣭㏿ᗘࢆᨵၿࡍࡿᚲせࡀ࠶ࡿࠋࡑࡢࡓࡵ࡟ࡣ཯ᛂ࣓࢝ࢽࢬ࣒ࢆゎ᫂ࡍࡿᚲせࡀ࠶ࡾࠊ⌧ᅾࡢ࡜ࡇࢁ CO 2 ࡀྜ㔠⾲㠃࡟Ꮡᅾࡍࡿ࡜㓟໬⭷ࡀᙧᡂࡉࢀࠊỈ⣲㞺ᅖẼ୰࡛ࡣ⾲㠃ࡀ㑏ඖࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊ཯ᛂ୰ࡢྜ㔠⾲㠃ࢆ TEM ほᐹ࡟ࡼࡾどぬⓗ࡟㏣࠸࡞ࡀࡽᨺฟࡉࢀࡓ࢞ࢫࢆྠ᫬࡟ศᯒࡍࡿࡇ࡜࡟ࡼࡾࠊ
ྠ཯ᛂࡢ࣓࢝ࢽࢬ࣒ࢆᚤどⓗ࡞ほⅬ࠿ࡽゎࡁ᫂࠿ࡍࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ◊✲ᮇ㛫ࢆ 3 ᖺ࡜タᐃࡋࠊ௒ᖺᗘࡣ TEM ⎔ቃ࡜ྠᵝࡢపỈ⣲ᅽ㸦0.01 Ẽᅽ㸧࡛Ỉ⣲྾ⶶ࠾ࡼࡧ࣓ࢱࣥ
ࡑࡢ CO 2 ㌿໬⬟ຊࢆホ౯ࡍࡿࠋ໬཯ᛂࢆྵࡴ CO 2 ㌿໬཯ᛂࡀྍ⬟࡞ྜ㔠ࡢೃ⿵ࢆ⤠ࡾࠊ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ࡲࡎྜ㔠ࡢపᅽάᛶ໬ฎ⌮ࢆ⾜ࡗࡓࠋ᮲௳࡜ࡋ࡚ 0.01 Ẽᅽ࡛ࡶỈ⣲ࢆ྾ⶶࡍࡿࡇ࡜
࡛ࠊࡇࢀࡲ࡛⏝࠸࡚࠸ࡓ Ti 0.515 Zr 0.485 Mn 1.2 Cr 0.8 M 0.1 㸦AB 2 -M㸸M = Fe, Ni㸧ࡣ㝖እࡉࢀࡿࡓࡵࠊỈ⣲྾ⶶᅽࡀ㠀ᖖ࡟పᅽ࡛࠶ࡿ ZrMn 2 ⣔ྜ㔠[1]࡟⤠ࡗࡓࠋ࢔࣮ࢡ⁐ゎࢆ⏝࠸࡚
ZrMn 1.9 M 0.1 㸦M = Fe, Ni㸧ࢆసᡂࡋࠊࡑࡢᚋ 900 Υ࣭24 h ࡛࢔ࢽ࣮ࣝฎ⌮࡟ࡼࡗ࡚ྜ㔠ෆࡢ⤌ᡂࢆᆒ୍໬ࡋࡓࠋࡑࡢᚋ X ⥺ᅇᢡᐃ࠾ࡼࡧ SEM-EDX

ᐃ࡟ࡼࡾࠊ┠ⓗ࡜ࡍࡿ⤌ᡂ࣭⤖ᬗᵓ㐀࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࠊ௨ୗࡢᐇ㦂ࢆ⾜ࡗࡓࠋ㸺పᅽάᛶ໬᮲௳ࡢ᳨ウ㸼TEM ୰࡛౑⏝ྍ⬟࡞࢞ࢫᅽࡣ 0.1 Ẽᅽ࡛࠶ࡿࡀࠊỈ⣲ࡣὶ㔞ࢥࣥࢺ࣮ࣟࣝࡀ㞴ࡋࡃ 20%࢞ࢫࢆ౑⏝ࡍࡿࡓࡵ 0.01 Ẽᅽ࡛ࡢ᮲௳ࡀᚲ㡲࡛࠶ࡿࠋࡇࡢ
ࡼ࠺࡞᮲௳࡛ࡢỈ⣲྾ⶶ≉ᛶࢆṇ☜࡟ホ౯ࡍࡿࡇ࡜ࡣ㠀ᖖ࡟㞴ࡋ࠸ࡓࡵࠊࡲࡎపᅽ࡛ࡢ
άᛶ໬࡜Ỉ⣲྾ⶶ㔞ࢆホ౯ྍ⬟࡞ࢩࢫࢸ࣒ࢆᵓ⠏ࡋࡓࠋࢩࢫࢸ࣒ᵓ⠏ᚋࠊάᛶ໬ฎ⌮ࢆ⾜࠸ࠊࡑࡢ┤ᚋ࡟Ỉ⣲྾ⶶ㔞࣭㏿ᗘࢆ ᐃࡋࠊάᛶ໬ࡢᡂྰࢆホ౯ࡋࡓࠋࡓࡔࡋỈ⣲྾ⶶヨ㦂ࡣࠊỈ⣲ࣇ࣮ࣟࡢ᮲௳࡛ࡣィࡀ㞴ࡋ࠸ࡓࡵࠊ㛢㙐⣔࡛ྜ㔠ࢆホ౯ࡋࡓࠋ

ZrMn 2 ࡟ࡘ࠸࡚ࠊ300 Υࡢ᮲௳ୗ࡟࠾࠸࡚ࠊձ┿✵ᘬࡁ࣭1 ᫬㛫ಖᣢࠊղỈ⣲ 0.01 Ẽ
ᅽ࣭1 ᫬㛫ࣇ࣮ࣟࡢ 2 ✀㢮ࡢ᮲௳ࡶࡋࡃࡣձղࢆ஺஫࡟⾜࠺ࡇ࡜࡛άᛶ໬ฎ⌮ࢆヨࡳࡓࠋࡑࢀࡒࢀࡢฎ⌮ᚋࠊỈ⣲ 0.01 Ẽᅽࢆᑟධࡋࠊࡑࡢᅽຊኚ໬࠿ࡽヨᩱࡢỈ⣲྾ⶶ㔞ࢆホ౯ࡋࡓࠋࡑࡢ⤖ᯝࠊձղࢆ஺஫࡟ 2 ᗘ⾜ࡗࡓሙྜࠊ40 ᫬㛫࡛඲࡚ࡢỈ⣲ࢆ྾ⶶࡋࡓࡓ
ࡵࠊ㐜࠸࡞ࡀࡽࡶỈ⣲ࢆ྾ⶶࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࡢ㐜࠸཯ᛂ㏿ᗘࡣࠊ༢⣧࡟άᛶ໬ࡀ୙༑ศ࡛࠶ࡿ࠿ࠊᐊ 㸦27Υ㸧࡛ࡢỈ⣲྾ⶶࡢᖹ⾮ᅽࡀ 0.01 Ẽᅽ௜㏆࡛࠶ࡿࡇ࡜ࡀ
⪃࠼ࡽࢀࡿࡓࡵࠊୖグ࡛ᚓࡽࢀࡓ᮲௳ࢆᇶ࡟ࠊ⌧ᅾ⥅⥆ࡋ࡚௚ࡢ ZrMn 2 -M ࡶྵࡵ࡚ᵝࠎ17࡞άᛶ໬᮲௳ࢆヨࡋ࡚཯ᛂ㏿ᗘࡀྥୖྍ⬟࠿ࢆ᳨ウࡋ࡚࠸ࡿࠋ
㸺CO 2 ㌿໬཯ᛂヨ㦂㸼ZrMn 2 -M ࡢṇࡋ࠸ CO 2 ㌿໬⬟ຊࢆᢕᥱࡍࡿࡓࡵ࡟ࠊࡍ࡭࡚ࡢⅣ⣲ࢆྵࡴ໬Ꮫ✀ࢆᐃ㔞ࡍࡿᚲせࡀ࠶ࡿࠋࡇࢀࡲ࡛ࡣⅣ໬Ỉ⣲ࡢࡳࢆᐃ㔞ࡋ࡚࠸ࡓࡀࠊ
GC-FID ࡛ࡣᐃ㔞࡛ࡁ࡞࠸ CO ࡸᮍ཯ᛂ CO 2 ࡶ཯ᛂᚋࡢ࢞ࢫ୰࡟ྵࡲࢀࡿࡓࡵࠊGC ࡛ᐃ࡛ࡁࡿࡼ࠺࡟࣓ࢱࢼ࢖ࢨ࣮㸦COࠊCO 2 ࢆ࣓ࢱࣥ໬ࡍࡿ⿦⨨㸧ࢆྲྀࡾ௜ࡅ࡚ࡇࢀࡽ
ࢆᐃ㔞ࡋࡓࠋࡲࡎ ZrMn 2 ࡢάᛶ໬ࢆ⾜࠺ࡓࡵࠊᐦ㛢࢞ࢫࢭࣝ୰࡟ྜ㔠ࢆᑒධࡋࠊỈ⣲ᅽ
0.9MPa࣭200 Υ࡛ 1 ᫬㛫ಖᣢࡋࡓᚋࠊỈ⣲ᅽ 0.9 MPa࣭200 Υ࣭30 ศಖᣢ㸦྾ⶶ㸧ࡋࠊ┿✵ᘬࡁ࣭ᐊ ࣭30 ศಖᣢ㸦ᨺฟ㸧ࢆ 2 ࢧ࢖ࢡࣝ⾜ࡗࡓࠋࡑࡢᚋ PCTPro-2000㸦SETARAM♫〇㸧ࢆ⏝࠸࡚ 200 Υ࡟࠾࠸࡚Ỉ⣲྾ⶶᅽ࣭྾ⶶ㔞ࢆホ౯ࡋࠊάᛶ໬࡛ࡁࡓࡇ࡜ࢆ☜ㄆࡋࡓࠋCO 2 ㌿໬཯ᛂヨ㦂࡜ࡋ࡚ࠊCO 2 ࢆᐊ ࡛ 1 MPa ᑟධࡋࠊ30 ศಖᣢࡋࡓᚋ࡟ᐊ
࡛┿✵ᘬࡁࢆ 30 ศ⾜࠸ࠊࡑࡢᚋỈ⣲ᅽ 0.9MPa࣭200 Υ࡛ 3 ᪥ಖᣢࡋࡓࠋ཯ᛂᚋࡢ࢞ࢫ
ࢆ࣓ࢱࢼ࢖ࢨ࣮௜ࡁ GC-FIDᐃࢆ⾜࠸ᐃ㔞ࡋࡓࠋࡑࡢ⤖ᯝࠊⅣ໬Ỉ⣲ࡢ௚࡟ CO 2 ࡣᐃ㔞࡛ࡁࡓࡶࡢࡢࠊࡇࢀࡲ࡛࡟ほ ࡉࢀ࡚࠸ࡓ CO ࡣほࡉࢀ࡞࠿ࡗࡓ㸦ᅗ 1㸧ࠋࡇࢀࡣCO ⃰ᗘࡀ᳨ฟ㝈⏺௨ୗ࡛࠶ࡗࡓ࡜⪃࠼ࡽࢀࡿࡓࡵࠊ㛢㙐⣔ࡢ CO 2 ㌿໬཯ᛂ࡛ᚓࡽࢀࡿ
CO ࡣ㠀ᖖ࡟ᚤ㔞࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋẚ㍑࡜ࡋ࡚ AB 2 -M ࡟ࡘ࠸࡚ᐃ㔞ࡋࡓ࡜ࡇࢁࠊ
ྠᵝ࡟ CO 2 ࡀほ ࡉࢀࠊCO ࡣ᳨ฟ㝈⏺௨ୗ࡛࠶ࡗࡓࠋ

ᅗ 1㸬
ZrMn 2 -M ࠾ࡼࡧ AB 2 -M ࡢ CO 2 ㌿໬㔞ࠋA=AB 2 ࠊ
AN=AB 2 -Niࠊ
AF=AB 2 -Feࠊ
Z=ZrMn 2 ࠊ
ZN=ZrMn 2 -NiࠊZF=ZrMn 2 -Fe
CO 2 ㌿໬⬟ຊࢆྛ≀㉁࡛ẚ㍑ࡍࡿ࡜ࠊAB 2 -M ࡛ࡣⅣ໬Ỉ⣲⏕ᡂ㔞ࡀࠊZrMn 2 -M ࡛ࡣ CO 2ᨺฟ㔞ࡀⴭࡋࡃቑຍࡍࡿ࡜࠸࠺ࠊNi ῧຍ࡟ࡼࡗ࡚ⴭࡋ࠸ኚ໬ࡀㄆࡵࡽࢀࡓࠋࡇࢀࡣࠊ
Ni ࢆῧຍࡍࡿ࡜ CO 2 ࡢ྾╔ࢧ࢖ࢺࡀቑຍࡍࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋࡓࡔࡋࡇࢀࡲ࡛ࡢ
◊✲࡛ ZrMn 2 -Ni ࡀỈ⣲ຍᅽ࡛ᐜ᫆࡟⬺㞳ࡍࡿ⤖ᯝࢆᚓ࡚࠸ࡿࡇ࡜࠿ࡽࠊCO 2 ࡢ྾╔ຊ
ࡀ ZrMn 2 -Ni ࡛ࡣ AB 2 -Ni ࡟ẚࡋ࡚ᙅ࠸ࡓࡵ࡟⾲㠃࠿ࡽ⬺㞳ࡋࠊỈ⣲࡟ࡼࡗ࡚෌྾╔ࡀ㜼ᐖࡉࢀ࡚Ⅳ໬Ỉ⣲⏕ᡂ㔞ࡀᑡ࡞ࡃ࡞ࡗࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋཧ⪃ᩥ⊩[1] ∾ཎ ⩏୍ࡽࠊ୕㔜኱Ꮫᩍ⫱Ꮫ㒊◊✲⣖せ ➨ 67 ᕳ ⮬↛⛉Ꮫ㸦2016㸧1-6.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭⋢ᇛ୍ᚿ㸪ྜྷ⏣ဴᮁ㸪ᅵᒱ▱ᘯ, ⰼ⏣ಙᏊ, ᑠᯘ⌮Ẽ, ୰ᕝ㕲Ỉ, ZrMn 2 ⣔Ỉ⣲྾ⶶྜ㔠ࡢ CO 2 ࣓ࢱࣥ໬≉ᛶホ౯࡜⬺Ỉ᪉ἲࡢ᳨ウ㸪➨ 14 ᅇỈ⣲ⱝᡭ◊✲఍㸪Ἀ⦖㸪2019ᖺ 9 ᭶㸰᪥18ู⣬ᵝᘧ㸰㸫㸰ࣞ࢔࣓ࢱࣝࣇ࣮ࣜ㧗ᶵ⬟☢ᛶᮦᩱ L1 0 -FeNi ࡢᡂ⭷ᢏ⾡ࡢ㛤Ⓨ
Development of deposition technique for realization of
rare-metal-free ferromagnet L1 0 -FeNi
ᑠႹ┿ே㺃ᮾி⌮⛉኱Ꮫ㺃ᇶ♏ᕤᏛ㒊ᮦᩱᕤᏛ⛉㺃෸ᩍᤵඵᮌఙஓ㺃ྡྂᒇ኱Ꮫ㺃ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ㺃ᩍᤵ㸯㸬◊✲┠ⓗ ᕼᑡ㈨※ࡢᯤῬࡸ࢚ࢿࣝࢠ࣮ၥ㢟ࡢ῝้໬ࢆ⫼ᬒ࡟㺂ప⎔ቃ㈇Ⲵ࠿ࡘ㧗࠸☢Ẽ␗᪉ᛶࢆ᭷ࡍࡿ☢ᛶᮦᩱࡀồࡵࡽࢀ࡚࠸ࡿ㹿㺀L1 0 ᆺ FeNi つ๎ྜ㔠(L1 0 -FeNi) 㺁ࡣ㈗㔠ᒓࣇ࣮࡛ࣜ㧗࠸☢Ẽ␗᪉ᛶࢆ♧ࡍࡇ࡜࠿ࡽࠊࡇࡢࡼ࠺࡞ᮇᚅ࡟ᑐᛂྍ⬟࡞᪂ࡋ࠸ᶵ⬟ᛶ☢ᛶᮦᩱ࡛࠶ࡿࠋ≉࡟ࢫࣆࣥࢺࣟࢽࢡࢫࢹࣂ࢖ࢫࡸ㺂㟁Ẽ⮬ື㌴ࡢ㧗ຠ⋡࣮ࣔࢱ࣮࡞࡝ࡢ⏘ᴗᛂ⏝࡬ࡢὀ┠ࡀ㧗ࡲࡗ࡚࠾ࡾࠊ㏆ᖺάⓎ࡟◊✲㛤Ⓨࡀ⾜ࢃࢀ࡚࠸ࡿࠋ
᭱㏆ᡃࠎࡢࢢ࣮ࣝࣉ࡛ࡣ㉸ᖹᆠ࡞ⷧ⭷ࢆస〇ྍ⬟࡞ࣃࣝࢫ࣮ࣞࢨ࣮⵨╔ἲ㸦PLD㸧࡟╔┠ࡋ㺂L1 0 -FeNi ࡢேᕤ๰〇ࢆ⾜ࡗ࡚࠸ࡿࠋᮏᮦᩱࡣ Fe ࡜ Ni ࡀ஺஫࡟୪ࢇࡔ fct ᆺࡢ㉸᱁Ꮚᵓ㐀࡜ࡋ࡚≉ᚩ࡙ࡅࡽࢀࠊ⤖ᬗᵓ㐀㸦᱁Ꮚࡦࡎࡳࠊつ๎ᗘ㸧࡜☢Ẽ␗᪉ᛶࡀᙉࡃ
㛵ಀࡍࡿࡓࡵࠊ⤖ᬗᵓ㐀ࢆ⌮ゎࡍࡿࡇ࡜ࡣ☢Ẽᶵ⬟ࢆྥୖࡉࡏࡿୖ࡛ᴟࡵ࡚㔜せ࡛࠶ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊࣃࣝࢫ࣮ࣞࢨ࣮⵨╔ἲ࡛ L1 0 -FeNi ࡢసᡂࢆ⾜࠸ࠊヨᩱࡢᵓ㐀࠾ࡼࡧ☢Ẽ≉ᛶࢆᨺᑕග X ⥺ᅇᢡ࡜ SQUID ࡛ゎᯒࡋࡓࡢ࡛ࠊ
ࡑࡢ⤖ᯝ࡟ࡘ࠸࡚ሗ࿌ࡍࡿ[1]ࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᐇ㦂࡛ࡣ L1 0 -FeNi ࣃࣝࢫ࣮ࣞࢨ࣮⵨╔ἲࢆ⏝࠸࡚ヨᩱస〇ࢆ⾜ࡗࡓࠋᡂ⭷࡛ࡣ⵨╔ᗘ౫Ꮡᛶࢆ㏣㊧ࡋࡓࠋࡲࡎ MgO(001)ᇶᯈࢆ 700Υ࡛ 2 ᫬㛫ຍ⇕ࡍࡿࡇ࡜࡛Ύί⾲㠃ࢆᚓࡓࠋ⵨╔ࡣ Fe ࡢࢩ࣮ࢻᒙࢆ 1nm ⵨╔ࡋࠊࡑࡢᚋࠊ70Υ࡛ Au ࢆ 20nm ሁ✚ࡉࡏࠊḟ
࡟ 300Υ࡛ Cu ࢆ 50nm ࢆ⵨╔ࡋࠊᇶᯈࢆస〇ࡋࡓࠋࡑࡢᚋࠊFe ࡜ Ni ࡜༢ཎᏊ஺஫✚ᒙ࡟ࡼࡗ࡚ィ 50ML ࡢⷧ⭷ࢆ⵨╔ࡋࡓࠋ඾ᆺⓗ࡞⵨╔㏿ᗘࡣࠊ74.2 sec/ML (Fe), 70.6 sec/ML(Ni), 78.1 sec/ML (Cu)࡛࠶ࡗࡓࠋᇶᯈࡢᖹᆠᛶࡣཎᏊ㛫ຊ㢧ᚤ㙾㸦NaioAFM: NanoSurf㸧࡛ゎᯒࡋ࡚࠸ࡿࠋⷧ⭷ࡢᡂ㛗ᗘ㸦Ts㸧ࢆᐊ

࠿ࡽ 400Υࡲ࡛ኚ໬ࡉࡏࠊᵓ㐀࡜☢Ẽ␗᪉ᛶࡢ ᗘ౫ᏑᛶࢆㄪᰝࡋࡓࠋRHEED ࡸ XRD ࢆ⏝࠸࡚ᵓ㐀ホ౯ࢆ⾜࠸ࠊSQUID ࢆ⏝࠸࡚☢Ẽ≉ᛶࢆホ౯ࡋࡓࠋ ⤖ᬗᵓ㐀ゎᯒࡣ SPring-8 BL46XU ࡢ X ⥺ᅇᢡ⿦⨨ࢆ฼⏝ࡋࠊ㠃ෆ X ⥺ᅇᢡᐇ㦂ࢆ⾜ࡗࡓࠋX ⥺ࡣヨᩱ࡟ᑐࡋ࡚ 0.28rࡢᩳධᑕ࡛ධᑕࡉࢀࠊ࢚ࢿࣝࢠ࣮ࡣ Fe ࡢ྾཰➃࠿ࡽ༑ศ㞳ࢀࡓ 7.5keV ࢆ⏝࠸ࡓࠋᚓࡽࢀࡓ X ⥺ᅇᢡࣃࢱ࣮ࣥࡼࡾ᱁Ꮚᐃᩘ࠾ࡼࡧつ๎ᗘࡢ⟬ฟࢆ⾜ࡗࡓࠋ
ࡲࡓ X ⥺␗ᖖᩓ஘(AXS) ᐃࢆ⾜࠺ࡇ࡜࡛ࠊ
㉸᱁Ꮚ཯ᑕࡢ☜ㄆࢆ⾜ࡗࡓࠋᚓࡽࢀࡓᵓ㐀ゎᯒࡢࢹ࣮ࢱ࡜ࠊᐇ㦂ᐊ࡛⾜ࡗࡓ RHEEDࠊAFMࠊSQUID ࢹ࣮ࢱࡢẚ㍑᳨
ウࢆ⾜ࡗࡓࠋ୍㐃ࡢ⤖ᯝࢆ⤌ࡳྜࢃࡏ࡚㆟ㄽࡍࡿࡇ࡜࡛ࠊ☢Ẽ␗᪉ᛶࡢྥୖࡢᣦ㔪ࡸࠊࣃࣝࢫ࣮ࣞࢨ࣮⵨╔ἲ࡟࠾ࡅࡿⷧ⭷ᡂ㛗㐣⛬ࢆᥦ᱌ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ

19 ᅗ 1 ࡟ᨺᑕග XRD ࡛ᚓࡽࢀࡓ X ⥺ᅇᢡࣃࢱ࣮ࣥࢆ♧ࡍࠋFeNi(110)࡟ᑐᛂࡍࡿ㉸᱁Ꮚ཯ᑕ࡜ඹ࡟ࠊFeNi(220)ࡢ୺᱁Ꮚ཯ᑕࡶ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡲࡓ FeNi(110)ࡢࣆ࣮ࢡ
ᙉᗘࡣヨᩱసᡂ

ᗘ࡟౫Ꮡࡋቑῶࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿࠋ࡞࠾␗ᖖᩓ஘

ᐃ࡛ࡣࠊ

Fe(110)ࣆ࣮ࢡࡣ᫂░࡞ᙉᗘኚ໬ࢆ♧ࡋ࡚࠸ࡓࡇ࡜࠿ࡽࠊᮏࣆ࣮ࢡࡀ L1 0 ᵓ㐀࡟⏤᮶ࡍࡿࡇ࡜ࡶ☜ㄆ࡛ࡁࡓࠋࡑࡋ࡚ FeNi(110)࡜ FeNi(220)ࡢࣆ࣮ࢡࡢ✚ศᙉᗘࡢẚ࠿ࡽつ๎ᗘࢆ⟬ฟࡋࡓࠋࡑࡢ⤖ᯝࠊヨᩱస〇 ᗘ 300Υ࡛つ๎ᗘࡀᴟ኱㸦S=0.38㸧ࢆྲྀࡿࡇ࡜ࡀ᫂ࡽ
࠿࡜࡞ࡗࡓࠋᮏᗘ࡛ࡣ☢Ẽ␗ ᪉ ᛶ ࡶᴟ ኱ ࢆ♧ ࡍ ࡇ࡜ ࡀ
SQUIDᐃ࡟ࡼࡗ࡚☜ㄆࡉࢀࡓࠋᮏᗘࡣᚑ᮶ࡢ MBE ἲ࡜ࡣ␗࡞ࡿ ᗘ࡛࠶ࡾࠊPLD ἲ≉᭷ࡢⷧ⭷ᡂ㛗ࡀ㉳ࡇࡗ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋAFM ゎᯒࡢ⤖ᯝࠊᮏ

ᗘ࡛⾲㠃ࡢᖹ

ᆠᛶࡀ᭱ࡶ㧗࠸ࡇ࡜ࡀ᫂ࡽ࠿
࡜࡞ࡗࡓࠋࢠࣈࢫ⾲㠃⮬⏤࢚ࢿࣝࢠ࣮ࢆ⏝࠸࡚ࠊᓥࡢᙧ≧࡜⤖ᬗᵓ㐀ࢆ㆟ㄽࡋࡓ⤖ᯝ㺂ࣃࣝࢫ࣮ࣞࢨ࣮ࡢ▐㛫ⓗ࡞᪼⳹࡜㧗ᐦᗘࡢ⏕ᡂ᰾ࡀ㉳※࡜࡞ࡗ࡚㺂L1 0 -FeNi ࡢᙧᡂ࡟⮳ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋᅗ 㸸ᨺᑕග ;5' ࡛ᚓࡽࢀࡓ /)H1L ࡢᅇᢡࣃࢱ࣮ࣥ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
M. Saito, H. Ito, Y. Suzuki, M. Mizuguchi, T. Koganezawa, T. Miyamachi, F. Komori, K.
Takanashi, and *M. Kotsugi, “Fabrication of L1 0 -FeNi by pulsed-laser deposition”, Appl. Phys.
Lett. 114, 072404 (2019)㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
M. Kotsugi, M. Saito, Y. Suzuki, M. Mizuguchi, T. Koganezawa, T. Miyamachi, F.
Komori, K. Takanashi “Fabrication of L1 0 -FeNi by pulsed laser deposition system”,
International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019), 1-3, Nov. (2019)20

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Fig.1 UV-Vis spectra for Au-nanoparticle with nitrogen nano-bubble for 10
min. discharging (Black), for 20 min. discharging (Green) and without nanobubble fabricated by solution plasma method (red)



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ู⣬ᵝᘧ㸰㸫㸰Ỉ࿴⏕యศᏊࡢ࢚ࢿࣝࢠ࣮ఏ㐩㐣⛬ࡢ◊✲
Energy Transfer Process on Hydrated Biomolecules⸨஭೺ኴ㑻࣭㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ࣭㔞Ꮚࣅ࣮࣒⛉Ꮫ㒊㛛࣭ୖᖍ◊✲ဨඵᮌఙஓ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗගྜᡂ࡟ࡼࡿ࢚ࢿࣝࢠ࣮ఏ㐩ࡣ୺࡟ⴥ⥳యࡢ⭷ୖ࡛⾜ࢃࢀࡿࡀ㸪ࡑࡢ㝿࡟࢔ࢹࣀࢩ
ࣥ୕ࣜࣥ㓟㸦$73㸧࡞࡝ࡢ᰾㓟ศᏊ࡛㉳ࡇࡿࣜࣥ㓟ᇶࡢ⬺㞳࣭⼥ྜࢆ㏻㈌࡜ࡋ࡚࢚ࢿࣝ
ࢠ࣮ࡢఏ㐩ࡀ⾜ࢃࢀࡿࠋࡈࡃ᭱㏆㸪$73 ศᏊ࡜ࡑࢀࢆྲྀࡾᅖࡴỈศᏊ࡜ࡢ㛫࡛㉳ࡇࡿ㟁Ꮚࡸࣉࣟࢺࣥࡢ⛣ືࡀ࢚ࢿࣝࢠ࣮ఏ㐩࡟ᐦ᥋࡟࠿࠿ࢃࡗ࡚࠸ࡿࡇ࡜ࡀ⌮ㄽⓗ࡟ணࡉࢀࡓࠋᮏ◊✲࡛ࡣ㸪ࡇࡢ㐣⛬࡟ࡘ࠸࡚ࡢᐇ㦂ⓗ࡞࢔ࣉ࣮ࣟࢳ࡟ࡼࡿ᝟ሗࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚㸪⏕యࢆྲྀࡾᅖࡴỈศᏊ࡜⏕యศᏊ࡜ࡢ㛫࡛㉳ࡇࡿ㟁Ⲵ⛣ື࠾ࡼࡧࣉࣟࢺࣥ⛣ື⌧㇟࡟╔┠ࡋ࡚㸪ᨺᑕග㌾ ; ⥺࡟ࡼࡿඖ⣲㑅ᢥⓗ࢖࢜ࣥ໬ᚋ࡟㉳ࡇࡿࡇࢀࡽࡢ⌧㇟ࢆ㸪㌾ ; ⥺↷ᑕ๓ᚋࡢ㌾ ; ⥺྾཰ࢫ࣌ࢡࢺࣝኚ໬࠿ࡽ᥎

ࡋࡓࠋᮏᖺᗘࡣ㸪$73 ศᏊ࠾ࡼࡧ

'1$ ୺㙐㦵᱁ࢆᙧᡂࡍࡿࢹ࢜࢟ࢩ࣮ࣜ࣎ࢫศᏊࢆᑐ㇟࡜ࡋ࡚㸪$73 ࡟ࡘ࠸࡚ࡣ஝⇱ヨᩱⷧ⭷㸪ࢹ࢜࢟ࢩ࣮ࣜ࣎ࢫ࡟ࡘ࠸࡚ࡣỈ࿴ⷧ⭷ヨᩱ࡟ᑐࡍࡿᨺᑕග↷ᑕᐇ㦂ࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᨺᑕග↷ᑕᐇ㦂┤ᚋ࡟㌾ ; ⥺྾཰ࢫ࣌ࢡࢺࣝࢆ ᐃࡍࡿࡇ࡜࡟ࡼࡾ㸪↷ᑕ࡟ࡼࡗ࡚࡝
ࡢࡼ࠺࡞ኚ␗ࡀᑟධࡉࢀ࡚࠸ࡿ࠿ࢆゎ2ᵓ㐀ࢆ཯ᫎࡋࡓඹ㬆ບ㉳ᵓ㐀ࡀ⌧ࢀࡿࠋࡇࢀࡽࡢ྾཰ᵓ㐀ࡀ↷ᑕ࡟ࡼࡗ࡚࡝ࡢ
ࡼ࠺࡟ኚ໬ࡍࡿ࠿ࢆほࡍࡿࡇ࡜࡛㸪

↷ᑕ࡟ࡼࡗ࡚ศᏊ࡟⏕ࡌࡓศᏊᵓ㐀ኚ໬ࢆண ࡋࡓࠋ$73 ஝⇱ⷧ⭷࡬ࡢ↷ᑕᐇ㦂࡛ࡣࠊᅗ  ࡟♧ࡍࡼ࠺࡟↷ᑕ࡟ࡼࡗ࡚❅⣲ . Ẇ྾཰➃㏆ഐࡢ྾཰ࢫ࣌ࢡࢺ

Intensity (arb. units)㻌ᯒࡋࡓࠋ≉࡟ ; ⥺྾཰➃㏆ഐ࡟ࡣศᏊ

BeforeIrradiation

(a)

1

0
2

㻌

(b)

1

After 560eV
Irradiationࣝࡢࣆ࣮ࢡᵓ㐀࡟ኚ໬ࡀぢࡽࢀࡓࠋ㢮ఝศᏊࡢ྾཰ࢫ࣌ࢡࢺࣝ࡜ࡢẚ㍑࠿ࡽࠊ

0398ࡇࡢࣆ࣮ࢡᵓ㐀ኚ໬ࡣࠊࣜࣥ㓟ᇶ㒊ศ

400

402

404

㻼㼔㼛㼠㼛㼚㻌㼑㼚㼑㼞㼓㼥㻌㻔㼑㼂㻕ࡢ⬺㞳࡜ሷᇶ㒊ศࡢᵓ㐀࡟ኚ໬ࡀ⏕ࡌࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋࢹ࢜࢟ࢩࣜ࣎

ᅗ㻝䚷❅⣲㻷Ẇ྾཰➃㏆ഐ䛾஝⇱㻭㼀㻼ⷧ⭷䛾
㌾㼄⥺྾཰䝇䝨䜽䝖䝹㻌㻔㼍㻕↷ᑕ๓䛾䝇䝨䜽䝖䝹䛚䜘䜃㻔㼎㻕㻡㻢㻜㼑㼂↷ᑕᚋ䛾䝇䝨䜽䝖䝹࣮ࢫⷧ⭷࡬ࡢ↷ᑕᐇ㦂࡛ࡣࠊ஝⇱ヨᩱ࡛ࡣぢࡽࢀ࡞࠿ࡗࡓỈ࿴࡟≉ᚩⓗ࡞ࣆ23࣮ࢡᵓ㐀ࡀほ ࡉࢀࡓࠋ⢾ศᏊ࡜Ỉ࿴ỈศᏊ࡜ࡢ㛫࡛㉳ࡇࡿࣉࣟࢺࣥ⛣ືࡢ⤖ᯝ࡜ࡋ࡚ࠊ
Ỉ࿴࡟≉ᚩⓗ࡞↷ᑕᚋࡢ⏕ᡂ≀ࡀ⏕ᡂࡋ࡚࠸ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࠋࡇࢀࡽࡢᡂᯝ࡟ࡘ
࠸࡚㸪 ሗࡢཎⴭㄽᩥ࡜ࡋ࡚Ⓨ⾲ࡍࡿ࡜࡜ࡶ࡟ࠊᅜෆࡢ఍㆟࡟࠾࠸࡚  ௳㸪,&0DVV ࢆࡣࡌࡵ࡜ࡍࡿᅜ㝿఍㆟࡟࠾࠸࡚  ௳ࡢⓎ⾲ࢆ⾜ࡗࡓ㸦࠺ࡕ  ௳ࡣᣍᚅㅮ₇㸧ࠋ࠙ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭⸨஭೺ኴ㑻㸪ຍ⸨኱㸪⸨஭⤀୍㑻㸪᭶ᮏගಇ㸪⛅ගಙె㸪ࠕᨺᑕ⥺࡟ࡼࡿ࢔ࢹࣀࢩࣥ
୕ࣜࣥ㓟ศᏊኚ␗࡟ࡼࡗ࡚ㄏⓎࡉࢀࡿ⏕≀Ꮫⓗຠᯝࠖ㸪X ⥺ศᯒࡢ㐍Ṍ㸪51 (2020)
251-259.
࣭K. Fujii, A. Yokoya, XANES spectral Changes of Hydrated Deoxyribose induced by K-shell
Ionization of Oxygen, AIP Conf. Proc. 2054 (2019) 04005.
㸺ᅜෆ఍㆟㸼
࣭⸨஭೺ኴ㑻㸪ᶓ㇂᫂ᚨ㸪 M-A. HERVÉ du PENHOAT, M-F. POLITIS, ᨺᑕග㌾ X ⥺ศගࢆ⏝࠸ࡓ㟁㞳ᨺᑕ⥺ㄏⓎ DNA ୺㙐ษ᩿ࡢ≀⌮㐣⛬ࡢほ 㸪➨ 1 ᅇ㔞Ꮚ⏕࿨⛉Ꮫ఍㸪ᮾி኱Ꮫ㸪2019-4-11.
㸺ᅜ㝿఍㆟㸼
࣭K. Fujii, A. Yokoya, M-A. Herve du Penhoat, M-F. Politis, Physical Process of Radiation
Damage to DNA utilizing Soft X-ray Spectroscopy, The international workshop for synergetic
collaboration between material and synchrotron science through IMR-MAX IV joint research,
Tohoku University, 2020-01-14 (Invited Talk).
࣭K. Fujii, A. Yokoya, M-A. Herve du Penhoat, M-F. Politis, Physical Process of DNA
Strand Breakages by Ionizing Radiations utilizing Synchrotron Soft X-ray Spectroscopy, The
8th International Symposium of Gunma University Initiative for Advanced Research, Gunma
University, 2020-02-03
࣭K. Fujii, A. Yokoya, M-A, Herve du Penhoat, M-F. Politis, Physical Process of DNA
Strand Breakage induced by Ionizing Radiations, International Conference on Materials andSystem for Sustainability, Nagoya University 2019-11-02
࣭K. Fujii, A. Yokoya, M-A. Herve du Penhoat, M-F. Politis, Physical Process of DNA Strand
Breakage induced by Core-Electron Ionization, International Young Researchers Workshop on
Synchrotron Radiation Science, Hiroshima University, 2019-09-03
࣭K. Fujii, A. Yokoya,

M-A. Herve du Penhoat, M-F. Politis, Ultrafast Proton Transfers

between DNA strand and hydrating water molecules, The 3rd QST International SymposiumࠕQuantum Life Scienceࠖ2019-12-0424ู⣬ᵝᘧ㸰㸫㸰஧㓟໬Ⅳ⣲㑏ඖ࡟ྥࡅࡓ㓟໬࣒࢞ࣜ࢘ࢼࣀࢩ࣮ࢺගゐ፹ࡢ๰〇
Fabrication of Ga 2 O 3 nanosheet photocatalyst for CO 2 reductionᒣᮏ᐀᫛࣭኱㜰ᕷ❧኱Ꮫ࣭」ྜඛ➃◊✲ᶵᵓ࣭≉௵ຓᩍᅬ⏣೺ኴ࣭኱㜰ᕷ❧኱Ꮫ࣭ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬ 1 ᖺඵᮌఙஓ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᣢ⥆ྍ⬟࡞♫఍ࡢᐇ⌧࡟ྥࡅ࡚ࠊ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮࡛࠶ࡿኴ㝧ගࢆ฼⏝ࡋࠊỈ୰࡛஧㓟໬Ⅳ⣲ࢆ㑏ඖ࣭෌㈨※໬ࡍࡿࡇ࡜ࡢ࡛ࡁࡿගゐ፹ࡢ㛤Ⓨࡀᮃࡲࢀ࡚࠸ࡿࠋᡃࠎࡣࡇ
ࢀࡲ࡛࡟ࠊ㖟ࢡࣛࢫࢱ࣮࡜㓟໬࣒࢞ࣜ࢘ගゐ፹ࡢ⏺㠃࡟࠾࠸࡚ࠊ཯ᛂ୰㛫య࡛࠶ࡿࢠ㓟ሷࡢග⏕ᡂࡀⴭࡋࡃಁ㐍ࡉࢀࡿࡇ࡜ࢆぢฟࡋࠊࡇࡢ཯ᛂᶵᵓ࡟ࡘ࠸࡚ᥦ♧ࡋ࡚ࡁࡓࠋᮏ
◊✲࡛ࡣࠊᮦᩱ୰ࡢ኱㒊ศࡀ㖟ࢡࣛࢫࢱ࣮࡜㓟໬࣒࢞ࣜ࢘ࡢ⏺㠃ࢆᙧᡂࡍࡿࡼ࠺࡞ᮦᩱࠊ
ࡍ࡞ࢃࡕ㖟ࢡࣛࢫࢱ࣮ࡀෆໟࡉࢀࡓ㓟໬࣒࢞ࣜ࢘ࢼࣀࢩ࣮ࢺගゐ፹ࢆస〇ࡍࡿࠋࡇࡢ᪂つගゐ፹ࢆ⏝࠸࡚ࠊ஧㓟໬Ⅳ⣲ࡢ㑏ඖ཯ᛂࢆ㧗ຠ⋡࡟㐍⾜ࡉࡏࡿ࡜࡜ࡶ࡟ࠊࡑࡢ཯ᛂᶵ
ᵓࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆᮏ◊✲ࡢ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࢩࢡࣟ࣊࢟ࢧࣥ㉸⬺Ỉ࡟㓟໬ࢢࣛࣇ࢙ࣥ㸦GO㸧࡜࣒࢞ࣜ࢘ࣈࢺ࢟ࢩࢻࢆຍ࠼ᨩᢾᚋࠊ
㐲ᚰศ㞳࠾ࡼࡧὙίࢆ⾜࠸ࠊ453 K ࡛ 6 ᫬㛫࣮࢜ࢺࢡ࣮ࣞࣈࡍࡿࡇ࡜࡛ Ga 2 O 3 ๓㥑య࡜GO ࡢ」ྜయ㸦Ga 2 O 3 ๓㥑య/GO㸧ࢆᚓࡓࠋᚓࡽࢀࡓ」ྜయࢆࠊ823 K ࠿ࡽ 1123 K ࡢᗘ࡛ 2 ᫬㛫↝ᡂࡋࠊ」ྜయ࠿ࡽ GO ࢆ㝖ཤࡍࡿࡇ࡜࡛ Ga 2 O 3 ࢼࣀࢩ࣮ࢺࢆㄪ〇ࡋࡓࠋ
Ag ᢸᣢཬࡧ CO 2 㑏ඖ཯ᛂᐇ㦂ࡣྠ୍ࢭࣝෆ࡛㐃⥆ࡋ࡚⾜ࡗࡓࠋNaHCO 3 ཬࡧ AgNO3 ࡀ⁐ゎࡋࡓỈ⁐ᾮ࡟ࠊ1123 K ࡛↝ᡂࡋ࡚ᚓࡓ Ga 2 O 3 ࢼࣀࢩ࣮ࢺࢆຍ࠼ࠊග↷ᑕ࡟ࡼࡾ Ag
ࢆᢸᣢࡋࡓࠋḟ࠸࡛ࠊ࣓ࢱࣀ࣮ࣝࢆῧຍࡋࠊගゐ፹ⓗ CO 2 㑏ඖ཯ᛂᐇ㦂ࢆ⾜ࡗࡓࠋGa 2 O 3 ๓㥑య/GO ࢆ 823̽1123 K ࡢྛᗘ࡛↝ᡂࡋ࡚ᚓࡽࢀࡓ Ga 2 O3 ࡣࠊ඲࡚ࢼࣀࢩ࣮

ࢺ≧࡛࠶ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓ㸦ᅗ 1 ᕥ㸧ࠋࡲࡓࠊ㧗ಸ⋡ࡢ TEM ീ࠿ࡽࡣࠊ↝ᡂᗘࡀ㧗࠸࡯࡝⤖ᬗᏊࡀ኱ࡁࡃ࡞ࡿഴྥࡀ☜ㄆࡉࢀࡓࠋXRD ࣃࢱ࣮ࣥࡼࡾࠊ823̽923 K ࡛↝ᡂࡋ1123 K ࡛↝ᡂࡋࡓヨᩱࡣ ȕ ┦ࢆᣢࡘࡇ࡜ࡀศ࠿ࡗࡓ㸦ᅗࡓヨᩱࡣ ȕ ┦࡜ Ȗ ┦ࡢΰ┦ᵓ㐀ࠊ
1 ྑ㸧ࠋࡲࡓࠊ↝ᡂ

ᗘࡀ㧗࠸࡯࡝ࣆ࣮ࢡᖜࡀ⊃ࡃࠊXRD ࣃࢱ࣮ࣥ࠿ࡽࡶ↝ᡂ ᗘࡀ㧗࠸࡯࡝⤖ᬗᏊࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋගゐ፹ⓗ CO 2 㑏ඖ཯ᛂᐇ㦂࡟ࡘ࠸࡚ࠊ1123 K ࡛↝ᡂࡋ࡚ᚓࡓ Ga 2 O 3 ࢼࣀࢩ࣮ࢺ㸦Ga 2 O 3ࢼࣀࢩ࣮ࢺ(1123 K)㸧࡜ᕷ㈍ࡢ Ga 2 O 3 (cGa 2 O 3 )࡟ Ag ࢆᢸᣢࡋࠊCO ⏕ᡂ㏿ᗘཬࡧ㑅ᢥᛶࢆẚ㍑ࡋࡓ㸦ᅗ 2㸧
ࠋAg/Ga 2 O 3 ࢼࣀࢩ࣮ࢺ(1123 K)࡛ࡣ Ag/cGa 2 O 3 ࡟ẚ࡭ࠊCO ⏕ᡂ㏿ᗘ
ࡣ 1.5 ಸࠊCO 㑅ᢥᛶࡣ 2 ಸ⛬ᗘྥୖࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࠊࢼࣀࢩ࣮ࢺ໬࡟ࡼࡿẚ⾲㠃✚ࡢቑຍࡀάᛶࡢྥୖ࡟㉳ᅉࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ

25ᅗ 1 (a) 823 K, (b) 923 K, (c) 1023 K, (d) 1123 K ࡛↝ᡂࡋ࡚ᚓࡓ Ga 2 O 3 ࢼࣀࢩ࣮ࢺࡢ
TEM ീ㸦ᕥ㸧ཬࡧ XRD ࣃࢱ࣮ࣥ㸦ྑ㸧.

ᅗ 2 Ag/cGa 2 O 3 ཬࡧ Ag/Ga 2 O 3 ࢼࣀࢩ࣮ࢺ(1123K)ࢆ⏝࠸ࡓගゐ፹ⓗ CO 2 㑏ඖ཯ᛂᐇ㦂ࡢ⤖ᯝ.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ K. Sonoda, M. Yamamoto, T. Tanabe, T. Yoshida, “The assessment of gallium oxide
nanosheet photocatalyst prepared using graphene oxide template”, International Conferenceon Artificial Photosynthesis-2019, Hiroshima, Japan, Nov. 20-24, 2019.
࣭ M. Yamamoto, T. Tanabe, T. Yoshida, “Photocatalytic carbon dioxide reduction over gallium
oxide with silver co-catalyst”, International Conference on Materials and Systems for
Sustainability, Nagoya, Japan, Nov. 1-3, 2019.
࣭ K. Sonoda, M. Yamamoto, T. Tanabe, T. Yoshida, “Synthesis and analysis of gallium oxide
nanosheet photocatalystusing graphene oxide template”, 12th International Symposium on
Atomic Level Characterizations for New Materials and Devices '19, Kyoto, Japan, Oct.
20-25, 2019.
࣭ ᅬ⏣೺ኴ㸪ᒣᮏ᐀᫛㸪⏣㎶ဴᮁ㸪ྜྷ⏣᭸Ꮚ㸪ࠕ㓟໬ࢢࣛࣇ࢙ࣥࢆࢸࣥࣉ࣮ࣞࢺ࡜ࡋ࡚
⏝࠸ࡓ㓟໬࣒࢞ࣜ࢘ࢼࣀࢩ࣮ࢺගゐ፹ࡢホ౯ࠖ㸪➨ 124 ᅇゐ፹ウㄽ఍㸪㛗ᓮ኱Ꮫ㸪2019ᖺ 9 ᭶ 18-20 ᪥.
࣭ K. Sonoda, M. Yamamoto, T. Tanabe, T. Yoshida, “The evaluation of the photocatalysis ofsilver loaded Ga 2 O 3 nanosheets made with graphene oxide as a template”, 14th European
Congress on Catalysis, Aachen, Germany, Aug. 18-23, 2019.
࣭ K. Sonoda, M. Yamamoto, T. Tanabe, T. Yoshida, “Preparation of gallium oxide nanosheet
photocatalyst using graphene oxide template”, ➨ 10 ᅇゐ፹⛉Ꮫ◊✲Ⓨ⾲఍, 㫽ྲྀ኱Ꮫ,2019 ᖺ 6 ᭶ 7 ᪥.

26ู⣬ᵝᘧ㸰㸫㸰㉸㧗㏿ཎᏊ᰾஝ᯈゎᯒᢏ⾡ࢆ฼⏝ࡋࡓẼ⌫ᦚ㍕ᆺᏱᐂ⥺࢖࣓࣮ࢪࣥࢢࢩࢫࢸ࣒ࡢ☜❧(VWDEOLVKPHQWRI%DOORRQERUQH&RVPLFUD\,PDJLQJ6\VWHP 
XVLQJ+\SHU+LJKVSHHG$QDO\VLVRI1XFOHDU(PXOVLRQ)LOP㟷ᮌⱱᶞ࣭⚄ᡞ኱Ꮫ࣭኱Ꮫ㝔 ே㛫Ⓨ㐩⎔ቃᏛ◊✲⛉࣭ᩍᤵ㧗ᶫぬ࣭⚄ᡞ኱Ꮫ࣭኱Ꮫ㝔 ே㛫Ⓨ㐩⎔ቃᏛ◊✲⛉࣭≉࿨ຓᩍභᲄᏹ⣖࣭ྡྂᒇ኱Ꮫ࣭኱Ꮫ㝔 ⌮Ꮫ◊✲⛉࣭◊✲ဨ ௚୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭㝃ᒓ㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭ᩍᤵబ⸨ ಟ࣭ྡྂᒇ኱Ꮫ࣭㝃ᒓ㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭ຓᩍ
᳃ᓥ㑥༤࣭ྡྂᒇ኱Ꮫ࣭㝃ᒓ㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗࡇࢀࡲ࡛㛤Ⓨࡋ࡚ࡁࡓ✲ᴟࡢ┬࢚ࢿᨺᑕ⥺᳨ฟჾ࡛࠶ࡿ㧗ឤᗘ࣭㧗⢭ᗘཎᏊ᰾஝ᯈ㸦ங๣୪ࡧ࡟㧗⢭ᗘࣇ࢕࣒ࣝ㸧ࢆ㸪᭱᪂㗦ࡢཎᏊ᰾஝ᯈㄞྲྀ⿦⨨ +76 ࢆ⏝࠸ࡓㄞࡳฟࡋ࣭ゎᯒᡭἲࡢ㛤Ⓨࢆ㏻ࡌ࡚Ẽ⌫ᦚ㍕ᆺᏱᐂ⥺࢖࣓࣮ࢪࣥࢢ࡟ᛂ⏝ࡍࡿࠋྡྂᒇ኱Ꮫ࡛㛤Ⓨࡉࢀ࡚ࡁࡓཎᏊ᰾஝ᯈ⮬ື㣕㊧ㄞྲྀ⿦⨨ +76䠄ᅗ䠍䠅ࡣ㸪᪤࡟ᮏ᱁ⓗ㐠⏝ࡀጞࡲࡗ࡚ᩘᖺࢆ⤒࡚࠾ࡾ㸪㧗㏿ㄞྲྀ࠿ࡽฟຊࡉࢀࡿẖ⛊  ୓ᮏࡢ㣕㊧᝟ሗ㸦㹼0E\WH⛊㸧ࡢฎ⌮㸪」ᩘࡢ
ࣇ࢕࣒ࣝ࡟ࡲࡓࡀࡿ㣕㊧ࡢ෌ᵓᡂ᪉ἲࡀ☜❧ࡉࢀࡘࡘ࠶ࡿࠋ
ᮏ◊✲࡛ࡣ㸪ྡྂᒇ኱Ꮫ࡜ඹྠ࡛⾜ࡗ࡚࠸ࡿẼ⌫ᐇ㦂 *5$,1( ࡢᏱᐂ࣐࢞ࣥ⥺࢖࣓࣮ࢪࣥࢢࡢࡓࡵࡢᐇ㝿ࡢཎᏊ᰾஝ᯈࢹ࣮ࢱゎᯒࢆ㏻ࡌ࡚㸪+76 ࢆ⏝࠸ࡓ኱つᶍࢹ࣮ࢱゎᯒࡢᶆ‽ᙧࡢ᏶ᡂᗘࢆ㧗ࡵࡿ࡜࡜ࡶ࡟᪂ࡓ࡞ᡭἲࡢ㛤Ⓨ࡟ྲྀࡾ⤌ࡴࠋᅗ 㻝㻦㻌 ㉸㧗㏿㣕㊧ㄞྲྀ⿦⨨ 㻴㼀㻿㻌㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ᖺ  ᭶㸪㇦ᕞ࡟࡚ཎᏊ᰾஝ᯈ࠿ࡽ࡞ࡿ㧗ゅᗘศゎ⬟Ț⥺ᮃ㐲㙾ࢆẼ⌫࡟ᦚ㍕ࡋᏱᐂ࣐࢞ࣥ⥺ほ ᐇ㦂ࢆᐇ᪋ࡋࡓࠋ㉸㧗㏿㣕㊧ㄞྲྀ⿦⨨ +76 ࡟ࡼࡾ㸪ཎᏊ᰾஝ᯈ⣙  ᖹ⡿࡟グ㘓ࡉࢀࡓ㣕㊧ࢹ࣮ࢱࡢㄞྲྀࢆ㐙⾜ࡋ㸪㣕㊧ࢹ࣮ࢱࡢゎᯒࢆ㐍ࡵ࡚࠸ࡿࠋࣇ࢕࣒ࣝࡢࣘࢽࢵࢺ
ࢧ࢖ࢬࡀ⣙ FPFP ࡛ᅗ㸰㸸㸦ᕥ㸧㢧ᚤ㙾ࢫࢸ࣮ࢪࡢࢫࢺ࣮ࣟࢡ௨ෆࡢࢧ࢖ࢬࡢ࢚ࣜ࢔࡟ศ๭ࡋ࡚ࢫ࢟ࣕࣥ
㸦ྑ㸧࢚ࣜ࢔ศ๭ࡋ࡚ࢫ࢟ࣕࣥࡉࢀࡓࢹ࣮ࢱࢆ㣕㊧ࡢ┦ᑐ఩⨨ࡢ⢭ᗘࢆಖࡗ࡚ྜయ

27඲㣕㊧ᩘ $㈏㏻㝖ཤ %

࠶ࡿࡢ࡟ᑐࡋ࡚㸪+76 ࡢࢫࢸ࣮ࢪࡢྍື⠊ᅖࡀ FPFP
࡜㝈ࡽࢀ࡚࠸ࡿࡓࡵ࡟㸪ࢥࣥࣂ࣮ࢱ㒊࡛ࡣ㸯ᯛࡢࣇ࢕࣒ࣝࡢ
ࢹ࣮ࢱࡢྲྀࡾ㎸ࡳࢆ  ࢚ࣜ࢔࡟ศ๭ࡋ࡚ࢹ࣮ࢱ཰㞟ࢆ⾜ࡗ㏵୰ጞ䜎䜚㻌

ࡓୖ࡛㸪ቃ⏺㒊࡛୧᪉ࡢ࢚ࣜ࢔࡛ྲྀᚓࡉࢀ࡚࠸ࡿྠ୍㣕㊧ࡢࢹ࣮ࢱࢆ౑⏝ࡋ࡚ྜయࡉࡏࡿฎ⌮ࢆ㔜ࡡࡿࡇ࡜࡛ࣘࢽࢵࢺ

㼑㻙㼜㼍㼕㼞 ೃ⿵ &ࢧ࢖ࢬ඲㠃࡟ࢃࡓࡿࡦ࡜ࡘ࡞ࡀࡾࡢࢹ࣮ࢱ࡟෌ᵓ⠏ࡍࡿฎ⌮ࢆᑟධࡋ㸪఩⨨⢭ᗘ࣭ゅᗘ⢭ᗘࢆᦆ࡞࠺ࡇ࡜࡞ࡃ࠶ࡓ࠿ࡶ

ᅗ㸱㸸ࢥࣥࣂ࣮ࢱ࣮㒊࡛ࡢ࣐࢞ࣥ⥺཯ᛂ㑅ฟ⤖ᯝ㸦✚ᒙࡋࡓ  ᯛࡢྛࣇ࢕࣒ࣝࡢ㣕㊧ᮏᩘࢆ♧ࡍ㸧኱ࡁ࡞ࢫࢺ࣮ࣟࢡࡢࢫࢸ࣮ࢪ୍࡛ᗘ࡟཰㞟ࡉࢀࡓᙧࡢࢹ࣮
ࢱࡢࡼ࠺࡟ྜయࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
㸦ᅗ㸰㸧ࡇࢀࡽࡢࢹ࣮ࢱ࡟ᑐࡋ࡚࣐࢞ࣥ⥺཯ᛂࢆ᳨ฟࡍࡿゎᯒࢆ㐍ࡵࡓࠋ$ 㸯ᯛࡢཎᏊ᰾஝ᯈ࡟ࡣ㸪㸯ࣘࢽࢵࢺ࠶ࡓࡾ⣙  ᮏࡢ㣕㊧ࡀグ㘓ࡉࢀ࡚࠸ࡿࠋ㐃⥆ࡍࡿ  ᯛࡢࣇ࢕࣒ࣝࢆ㸯ࢭࢵࢺ࡜ࡋ㸪 % ࡑࡢ  ᯛ
ࢆ㈏㏻ࡍࡿⲴ㟁⢏Ꮚ㣕㊧ࢆ㝖ཤࡋࡓᚋ㸪 ᯛ୰ࡢୖὶ࠿ࡽ  ᯛ┠ࡢࣇ࢕࣒ࣝ࠿ࡽጞࡲࡾ㸪 ᯛ┠ࡲ࡛㈏㏻ࡍࡿ㣕㊧ࡢࡳࢆᢳฟࡍࡿࠋຍ࠼࡚㸪& ㏆ഐ࡟⊂❧ࡋࡓ㣕㊧ࡀ୪㉮ࡍࡿ≉ᚩࢆせồࡍࡿࡇ࡜࡛㸪ȚЍHH཯ᛂࡢࢥࣥࣂ࣮ࢪࣙࣥⅬࢆ㑅ࡧฟࡋࡓࠋ
㸦ᅗ㸱㸧✚ᒙࡋࡓྛࣇ࢕࣒ࣝ
࡛࡯ࡰ୍ᐃࡢ๐ῶ⋡ࡀᚓࡽࢀ࡚࠸ࡿ஦ࡀ☜ㄆ࡛ࡁࡿࠋ

ᅗ㸲㸸ほ ჾࡢ㧗ᗘࡢ᫬㛫ኚ໬࡜ࢺࣛࢵࢡ࣮ࣞࢺࡢ᫬㛫ኚ໬ࢥࣥࣂ࣮ࢱ㒊ࡢୗὶഃ࡟ࡣ㸪࢚࣐ࣝࢩࣙࣥࣇ࢕࣒ࣝࢆ࣐
࢘ࣥࢺࡋࡓ」ᩘẁࡢࢫࢸ࣮ࢪࢆ࢔ࢼࣟࢢ᫬ィࡢ㔪ࡢࡼ࠺࡟⊂❧ࡋࡓ࿘ᮇ࡛ ᚟ࡉࡏ㸪㣕㊧ࢆ෌ᵓᡂࡍࡿ㝿࡟ࡑࡢ఩⨨ࢬࣞ᝟ሗࡢ⤌ྜࡏ࠿ࡽྛ㣕㊧ࡢ㏻㐣᫬้ࢆᚓࡿ࢚࣐ࣝ
ࢩࣙࣥࣇ࢕࣒ࣝከẁࢩࣇࢱ࣮ࢆ㓄⨨ࡋ࡚࠸ࡿࠋࡑࡢゎᯒ࡟ࡼࡾᚓࡽࢀࡓ㏻㐣㣕㊧ᮏᩘࡢ᫬㛫ኚ໬ࢆほ ჾ㧗ᗘࡢ᫬㛫ኚ໬࡜࡜ࡶ࡟♧ࡍࠋ㸦ᅗ㸲㸧9HOD ࣃࣝࢧ࣮ほ ᫬㛫ᖏ࡟ᤊ࠼ࡽࢀࡓ࣐࢞ࣥ⥺஦㇟࡟ᑐࡋ࡚ࡣ㸪ࡢຠ⋡࡛᫬㛫ᅗ㸳㸸*36 ᝟ሗ࡟ᇶ࡙ࡃど㔝ゅࡢ᫬㛫ኚ໬䠄䝢䞁䜽䠅࡜ጼໃࣔࢽࢱ࣮࠿ࡽỴᐃࡋࡓど㔝ゅࡢ᫬㛫ኚ໬䠄㟷䠅Ỵᐃࡀ࡛ࡁ࡚࠸ࡿࠋ
ᮃ㐲㙾ࡢኳ⌫࡟ᑐࡍࡿጼໃࡣ㸪㸱ྎࡢࢫࢱ࣮࣓࢝ࣛ࡟ࡼࡗ࡚
ࣔࢽࢱ࣮ࡋࡓࠋ ᖺᐇ㦂࡛ࡣ㸪ሀ∼ᛶ࣭෕㛗ᛶࢆᙉ໬ࡋࡓ
⏬ീグ㘓ࢩࢫࢸ࣒࡜㏞ගࡢධࡾ࡟ࡃ࠸ᑐ⟇ࢆ᪋ࡋࡓ࣐࢘ࣥࢺ
ἲ࡞࡝࡟ࡼࡾ㸪9HOD ࣃࣝࢧ࣮ほ ᫬㛫ᖏࡢ࠺ࡕ ࡢ᫬㛫࡟ࡘ࠸࡚ጼໃỴᐃࢆ⾜࠺ࡇ࡜ࡀ࡛ࡁࡓࠋᅗ㸳࡟ *36 ᝟ሗ࡟ᇶ࡙
ࡃኳ㡬᪉ྥ࡜ど㔝ゅࡢ᫬㛫ኚ໬࡜ጼໃࣔࢽࢱ࣮࡛Ỵᐃࡋࡓኳ㡬᪉ྥ࡜ど㔝ゅࡢኚ໬ࢆ㔜ࡡ࡚♧ࡋࡓࠋ௨ୖࡢ᝟ሗࢆ⥲ྜࡍࡿࡇ࡜࡟ࡼࡾ㸪᪤▱ࡢ㧗㍤ᗘ࣐࢞ࣥ⥺ኳయ࡛࠶ࡿ 9HOD ࣃࣝࢧ࣮ࢆୡ⏺᭱㧗ゎീᗘ࡛⤖ീࡍࡿࡇ࡜࡟ᡂ
ຌࡋࡓࠋࡑࡢ⤖ᯝࢆᅗ㸴࡟♧ࡍࠋ

28

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㻳㻾㻭㻵㻺㻱䠈5$',2,62723(6±䠄䠅GRLUDGLRLVRWRSHV䠘ᅜ㝿఍㆟䠚䞉 0.RPL\DPDIRU*5$,1(FROODERUDWLRQ3HUIRUPDQFHHYDOXDWLRQRIJDPPDUD\GHWHFWRUVDWREVHUYDWLRQDOWLWXGHV 
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,&0D661DJR\D8QLYHUVLW\SRVWHU䞉 0 2GD IRU *5$,1( FROODERUDWLRQ $ GHYHORSPHQW RI QH[W JHQHUDWLRQ PXOWLVWDJH VKLIWHU IRU *5$,1( VFLHQWLILF
REVHUYDWLRQ,&0D661DJR\D8QLYHUVLW\SRVWHU䞉 <1DNDPXUDIRU*5$,1(FROODERUDWLRQ*5$,1(3HUIRUPDQFHHYDOXDWLRQRIFRQYHUWHUE\DQDO\]LQJJDPPDUD\IURPKDGURQLFLQWHUDFWLRQ,&0D661DJR\D8QLYHUVLW\SRVWHU䞉 0.RPL\DPDIRU*5$,1(FROODERUDWLRQ'HYHORSPHQWRIWKHF\OLQGULFDOSUHVVXUL]HGYHVVHOJRQGRODUHDOL]LQJODUJH
REVHUYHGIRU*5$,1(VFLHQWLILFREVHYDWLRQ,&0D661DJR\D8QLYHUVLW\SRVWHU䠘ᅜෆ఍㆟䠚䞉 භᲄᏹ⣖ ௚ *5$,1(FROODERUDWLRQ䠈Ẽ⌫ᦚ㍕䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛾 Ȗ ⥺䜲䝯䞊䝆䞁䜾ᛶ⬟䠈᪥ᮏ෗┿Ꮫ఍ᖺḟ኱఍䠈༓ⴥ኱Ꮫ す༓ⴥ䜻䝱䞁䝟䝇䠈䞉 ᪥ᮏ≀⌮Ꮫ఍⛅Ꮨ኱఍ ᒣᙧ኱Ꮫ
භᲄᏹ⣖ IRU*5$,1(FROO*5$,1( ᐇ㦂䛷䛾Ẽ⌫㧗ᗘ䛻䛚䛡䜛኱Ẽ䜺䞁䝬⥺䛾 ᐃᑠᐑᒣᑗᗈ IRU*5$,1(FROO*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䝁䞁䝞䞊䝍㒊䜺䞁䝬⥺ほ ᛶ⬟ᯇ⏣Ⳮử IRU *5$,1( FROO *5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䛻䛚䛡䜛ከẁ䝅䝣䝍䞊ᦚ㍕䝣䜱䝹䝮䛾䝣䝷䜲䝖䝕䞊29䝍ゎᯒ≧ἣ䛾ሗ࿌㧗ᶫぬ IRU*5$,1(FROO*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍ゎᯒ≧ἣᑠ⏣⨾⏤⣖ ௚ ኱㠃✚䚸㛗᫬㛫䚸㧗᫬㛫ศゎ⬟䜢ᐇ⌧䛩䜛ཎᏊ᰾஝ᯈ᫬้௜୚ᶵᵓከẁ䝅䝣䝍䞊䛾㛤Ⓨ୰ᮧᝆဢ IRU *5$,1( FROO *5$,1( ᖺẼ⌫ᐇ㦂䛻䛚䛡䜛䝝䝗䝻䞁཯ᛂ㉳ᅉ䛾䜺䞁䝬⥺䜢฼⏝䛧䛯䝁䞁䝞䞊䝍ᛶ⬟ホ౯
୰ᮧඖဢ IRU *5$,1( FROO *5$,1(䠖Ẽ⌫ᦚ㍕ᆺ䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛻䛚䛡䜛᫬้௜୚ᶵᵓ䚸ከẁ䝅䝣䝍䞊ሗ࿌ ࠥ䝣䝷䜲䝖䝕䞊䝍䛾᫬㛫᝟ሗゎᯒࠥ୰ᮧᓫᩥ IRU*5$,1(FROO*5$,1( ィ⏬䠖 ᖺ㇦ᕞẼ⌫ᐇ㦂䛻䛚䛡䜛ጼໃ᝟ሗ䛸᫬้᝟ሗ䜢⏝䛔䛯䜶䝬䝹䝅䝵䞁ᮃ㐲㙾ᛶ⬟ホ౯䞉 㧗ᶫぬ IRU*5$,1(FROO*5$,1( ィ⏬ ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍ゎᯒ≧ἣ ; ⥺䜺䞁䝬⥺೫ගほ5* 䝭䞊䝔䜱䞁䜾 ᒣᙧ኱Ꮫ䞉 㧗ᶫぬ IRU*5$,1(FROO*5$,1( ィ⏬䛸  ᖺẼ⌫ᐇ㦂 ➨  ᅇ 0H9 䜺䞁䝬⥺ኳᩥᏛ◊✲఍䠈ᮾி኱Ꮫ䠈䞉 ୰ᮧᝆဢ ௚ *5$,1(FROO*5$,1( ᖺẼ⌫ᐇ㦂䛾ゎᯒ≧ἣ䠈➨  ᅇᏱᐂ⣲⢏Ꮚⱝᡭ䛾఍⛅䛾◊✲఍䠈ྡྂᒇ኱Ꮫ ,6((䠈䞉 ኱Ẽ⌫䝅䞁䝫䝆䜴䝮-$;$ ┦ᶍཎ䜻䝱䞁䝟䝇
୰ᮧᝆဢ IRU*5$,1(FROO*5$,1( ィ⏬ ᖺ㇦ᕞẼ⌫ᐇ㦂䛻䛚䛡䜛䝁䞁䝞䞊䝍ゎᯒሗ࿌ᯇ⏣Ⳮử IRU*5$,1(FROO*5$,1( ィ⏬ ከẁ䝅䝣䝍䞊䛾䝣䝷䜲䝖䝕䞊䝍ゎᯒሗ࿌ ୰ᮧඖဢ IRU*5$,1(FROO*5$,1( ከẁ䝅䝣䝍䞊䝣䝷䜲䝖䝕䞊䝍ゎᯒሗ࿌ ୰ᮧᓫᩥ IRU*5$,1(FROO*5$,1( ጼໃ䝰䝙䝍䞊䛚䜘䜃䛭䜜䜢ే䛫䛯䝣䝷䜲䝖䝕䞊䝍ゎᯒ㧗ᶫぬ IRU*5$,1(FROO*5$,1( 䝣䝷䜲䝖䝕䞊䝍ゎᯒሗ࿌㟷ᮌⱱᶞ IRU*$,15(FROO*5$,1( ィ⏬ 䝻䞊䝗䝬䝑䝥䛸ḟᮇ㇦ᕞẼ⌫ᐇ㦂ᑠ⏣⨾⏤⣖ IRU*5$,1(FROO*5$,1( ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯኱㠃✚䚸㛗᫬㛫䚸㧗᫬㛫ศゎ⬟䜢ᐇ⌧䛩䜛㻌 ᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨᑠᐑᒣᑗᗈ IRU*5$,1(FROO*5$,1( ኱㠃✚⛉Ꮫほ 䜢ᐇ⌧䛩䜛㛗⧛ᆺ୚ᅽᐜჾ䝂䞁䝗䝷䛾㛤Ⓨ≧ἣ䞉 ୰ᮧᓫᩥ IRU *5$,1( FROO *5$,1( ィ⏬ ᖺ㇦ᕞẼ⌫ᐇ㦂䛻䛚䛡䜛ጼໃ䝰䝙䝍䞊䛸䝍䜲䝮䝇䝍䞁䝟䞊䛾㐃ᦠゎᯒ䛻䜘䜛䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛾ᛶ⬟ホ౯䠈⏬ീ㛵㐃Ꮫ఍㐃ྜ఍➨䠒ᅇ⛅Ꮨ኱఍ ி㒔ᕤⱁ⧄⥔኱Ꮫ䞉 㧗ᶫぬ IRU*5$,1(FROO Ᏹᐂ㧗䜶䝛䝹䜼䞊䜺䞁䝬⥺⢭ᐦほ ィ⏬ *5$,1(&5& ᑗ᮶ィ⏬䝍䜴䞁䝭䞊䝔䜱䞁䜾䠈䜾䝷䞁䜻䝳䞊䝤኱㜰䠈䞉 㟷ᮌⱱᶞ IRU*5$,1(FROO*5$,1( Ẽ⌫ᦚ㍕ᆺ䜶䝬䝹䝅䝵䞁ᮃ㐲㙾䛻䜘䜛Ᏹᐂ䜺䞁䝬⥺ほ ィ⏬㧗䜶䝛䝹䜼䞊Ᏹᐂ≀⌮㐃⤡఍䝍䜴䞁䝭䞊䝔䜱䞁䜾䠈ᮾிᕤᴗ኱Ꮫ⏣⏫䝡䝹䠈䞉 Ᏹᐂ⛉Ꮫ䝅䞁䝫䝆䜴䝮-$;$ ┦ᶍཎ䜻䝱䞁䝟䝇 ᑠᐑᒣᑗᗈ IRU*5$,1(FROO*5$,1( ィ⏬ ᖺ㇦ᕞẼ⌫ᐇ㦂䛻䛚䛡䜛䝁䞁䝞䞊䝍㒊䝣䝷䜲䝖䝕䞊䝍ゎᯒ ୰ᮧඖဢ IRU*5$,1(FROO*5$,1( ィ⏬ ᖺ㇦ᕞẼ⌫ᐇ㦂䛻䛚䛡䜛ከẁ䝅䝣䝍䞊䝣䝷䜲䝖䝕䞊䝍ゎᯒ ᑠ⏣⨾⏤⣖ IRU *5$,1( FROO 䠣䠮䠝䠥䠪䠡ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯኱㠃✚䚸㛗᫬㛫䚸㧗᫬㛫ศゎ⬟䜢ᐇ⌧䛩䜛㻌 㻌30᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨ䞉 㧗ᶫぬ IRU*5$,1(FROO*5$,1( ィ⏬䛸  ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍ゎᯒ㧗䜶䝛䝹䜼䞊Ᏹᐂ≀⌮㐃⤡఍◊✲఍䠈❧ᩍ኱Ꮫ䠄᪂ᆺ䝁䝻䝘䜴䜱䝹䝇䛾䛯䜑 =RRP 㛤ദ䠅䠈䞉 ᪥ᮏ≀⌮Ꮫ఍➨  ᅇᖺḟ኱఍  ᖺ ྡྂᒇ኱Ꮫ䠄᪂ᆺ䝁䝻䝘䜴䜱䝹䝇䛾䛯䜑⌧ᆅ㛤ദ䛫䛪䠅୰ᮧᓫᩥ IRU*5$,1(FROO*5$,1(䠖Ẽ⌫㧗ᗘ䛻䛚䛡䜛኱Ẽ䜺䞁䝬⥺䛾฿᮶᪉ྥศᯒ
භᲄᏹ⣖ IRU*5$,1(FROO*5$,1( ᐇ㦂䛷䛾Ẽ⌫㧗ᗘ䛻䛚䛡䜛኱Ẽ䜺䞁䝬⥺䝇䝨䜽䝖䝹 ᐃ୰ᮧᝆဢ IRU*5$,1(FROO*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍䛷䛾䝁䞁䝞䞊䝍䞊㒊䜺䞁䝬⥺ほ ᛶ⬟ホ౯ᯇ⏣Ⳮử IRU*5$,1(FROO*5$,1( ィ⏬䠖᫬㛫᝟ሗ䜢⏝䛔䛯  ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍ゎᯒ䛻䜘䜛㧗ከ㔜ᗘ䜲䝧䞁䝖ホ౯㧗ᶫぬ IRU*5$,1(FROO*5$,1( ィ⏬䠖 ᖺẼ⌫ᐇ㦂䝣䝷䜲䝖䝕䞊䝍ゎᯒሗ࿌ᑠ⏣⨾⏤⣖ IRU*5$,1(FROO*5$,1( ィ⏬䠖*5$,1( ḟᮇẼ⌫ᐇ㦂䛻ྥ䛡䛯᪂ᆺከẁ䝅䝣䝍䞊䛾㛤Ⓨ䠘⏘ᴗ㈈⏘ᶒ䠚䞉ヱᙜ䛺䛧

31ู⣬ᵝᘧ㸰㸫㸰㝧Ꮚ⥺἞⒪࡟࠾ࡅࡿయෆ⥺㔞ศᕸࡢィἲࡢ㛤Ⓨ

Development of in vivo dose measurement system for proton therapy◊✲௦⾲⪅ ṓ⸨฼⾜࣭ྡྂᒇᕷ❧す㒊་⒪ࢭࣥࢱ࣮ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮࣭㝧Ꮚ⥺἞⒪≀⌮⛉࣭ಀ㛗◊✲ศᢸ⪅ ᮌᮧ඘ᏹ࣭ྡྂᒇᕷ❧す㒊་⒪ࢭࣥࢱ࣮ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮࣭㝧Ꮚ⥺἞⒪≀⌮⛉࣭ᢏᖌ(་Ꮫ≀⌮)◊✲ᡤᢸᙜᩍဨ ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭㧗ᗘィᢏ⾡ᐇ㊶ࢭࣥࢱ࣮ ⣲⢏Ꮚィ 㒊࣭ᩍᤵ◊✲ᡤᢸᙜᩍဨ బ⸨ಟ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮ ⣲⢏Ꮚィ 㒊࣭ຓᩍ㸯㸬◊✲┠ⓗ 㝧Ꮚ⥺ࡸⅣ⣲⥺ࢆ⏝࠸ࡓᨺᑕ⥺἞⒪࡛࠶ࡿ⢏Ꮚ⥺἞⒪࡛ࡣࠊࣈࣛࢵࢢࣆ࣮ࢡ௜㏆ࡢ⥺㔞㞟୰ᛶࢆά࠿ࡋࡓ๪స⏝ࡢᑡ࡞࠸἞⒪ࡀᮇᚅ࡛ࡁࡿࡀࠊࡑࡢ཯㠃ࠊ᝿ᐃእࡢ㣕⛬ࡢㄗᕪ࡟ࡼࡿࠊ㔜せ⮚ჾࡢᨺᑕ⥺㞀ᐖࡢࣜࢫࢡࢆᖖ࡟కࡗ࡚࠸ࡿࠋࡑࡢࡓࡵࠊᝈ⪅యෆࡢ⥺㔞ศᕸࢆྍど໬ࡋࠊࡑࢀࡀィ⏬ࡋࡓ࡜࠾ࡾ࡛࠶ࡿࡇ࡜ࢆ᳨ドࡍࡿᢏ⾡ࡀᮃࡲࢀ࡚࠾ࡾࠊ
ࡑࡢࡓࡵࡢ᭷ຊ࡞ᡭἲࡀ⢏Ꮚ⥺↷ᑕ࡟క࠺༶Ⓨ࣐࢞ࣥ⥺ࢆ᳨ฟࡍࡿ᪉ἲ࡛࠶ࡿࠋᮏ◊✲ࡢ┠ⓗࡣཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ༢୍ගᏊᨺᑕ᩿ᒙ᧜ᙳ(SPECT: Single Photon Emission
Computed Tomography)ࢩࢫࢸ࣒ࢆ㛤Ⓨࡋࠊ༶Ⓨ࣐࢞ࣥ⥺ࡢ᳨ฟ࡟ࡼࡾ⢏Ꮚ⥺἞⒪࡟࠾ࡅࡿ 3 ḟඖ⥺㔞ศᕸࢆィ ࡍࡿࡇ࡜࡛࠶ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᖹᡂ 31 ᖺᗘࡣࠊᖹᡂ 30 ᖺᗘ࡟タィࠊ〇సࡋࡓ㢌㢕㒊἞⒪⏝ SPECT ⿦⨨ࢆ⏝࠸࡚ࠊྡྂᒇ㝧Ꮚ⥺
἞⒪ࢭࣥࢱ࣮࡟࠾࠸࡚㝧Ꮚ⥺ࣅ࣮࣒ࢆ౑ࡗࡓᛶ⬟ヨ㦂ࢆ⾜ࡗࡓࠋࡑࢀ࡜୪⾜ࡋ࡚ࣔࣥࢸ࢝ࣝࣟࢩ࣑ࣗ
࣮ࣞࢩࣙࣥࡢᡭἲ࡟ࡼࡾࠊ༶Ⓨ࣐࢞ࣥ⥺ࡢᙉᗘศᕸ
ࢆィ⟬ࡋࠊ⥺㔞ศᕸ࡜ࡢẚ㍑ࢆ⾜ࡗࡓࠋࣅ࣮࣒ヨ㦂࡛ࡣࢫ࣏ࢵࢺࢫ࢟ࣕࢽࣥࢢ἞⒪ᐊ࡟
࠾࠸࡚ࠊ࢚ࢿࣝࢠ࣮121 MeV㸦Ỉ୰㣕⛬ 10.5 cm㸧ࡢ㝧Ꮚ⥺࣌ࣥࢩࣝࣅ࣮࣒㸦⢏Ꮚᩘ 61010 ಶ㸧ࢆỈᵴ࡟↷ᑕࡋࡓ㸦ᅗ 1㸧ࠋỈᵴࡢࡲࢃࡾࡣ 6 㠃ࡢ᳨ฟჾࣔࢪ࣮࡛ࣗࣝᅖࡴࡇ࡜ࡀ࡛ࡁࡿࡼ࠺࡟࡞ࡗ࡚࠸
ࡿࡀࠊ௒ᅇࡢヨ㦂࡟࠾࠸࡚ࡣ 1 㠃ࡢࡳ࡟ཎᏊ᰾஝ᯈ
ࢆྲྀࡾ௜ࡅࡓࠋྡྂᒇ኱Ꮫ࡟࠾࠸࡚ཎᏊ᰾஝ᯈࡢ⌧ീࡣ᏶஢ࡋ࡚࠸ࡿࠋ

ᅗ 1.↷ᑕᐇ㦂ࢭࢵࢺ࢔ࢵࣉ

32

༶Ⓨ࣐࢞ࣥ⥺ࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟㛵ࡋ࡚ࡣࠊ㢌㢕㒊἞⒪ࡢ⮫ᗋࢹ࣮ࢱࢆ౑⏝ࡋࠊ
Geant4 ࢆ⏝࠸࡚࣐࢞ࣥ⥺ࡢⓎ⏕Ⅼࡢศᕸࢆィ⟬ࡋࡓࠋ⥺㔞ศᕸ࡜ࡣࡼࡃ୍⮴ࡋࠊ࣐࢞ࣥ
⥺ࡢᙉᗘศᕸࡀ⥺㔞ศᕸࡢ᥎ᐃ࡟᭷ຠ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸦ᅗ 2㸧ࠋࡲࡓࠊ἞⒪ᮇ㛫୰ࡢゎ๗ࡢኚ໬ࡢᙳ㡪࡟ࡘ࠸࡚ࡶホ౯ࢆ⾜࠸ࠊ↷ᑕ㔝ෆ࡟✵Ὕࡀ⏕ࡌࡓሙྜࠊࡑࡢୗ
ὶഃ࡬㐣๫࡞⥺㔞ࡀ↷ᑕࡉࢀࡿ஦㇟ࢆ᳨ฟ࡛ࡁࡿࡇ࡜ࡶศ࠿ࡗࡓ㸦ᅗ 3㸧ࠋ௒ᅇ↷ᑕࡋࡓཎᏊ᰾஝ᯈ࡟ࡣ 10 MeV ௨ୖࡢ஦㇟ࡀ 10 ୓஦㇟⛬ᗘ⵳✚ࡉࢀ࡚࠸ࡿ࡜
ᮇᚅ࡛ࡁࡿࠋ௒ᚋࠊཎᏊ᰾஝ᯈࡢゎᯒࢆࡍࡍࡵࠊ㟁Ꮚ-㝧㟁Ꮚᑐ⏕ᡂ஦㇟ࡢ᳨ฟ࠾ࡼࡧ
⥺㔞ศᕸࡢ෌ᵓᡂࢆ┠ᣦࡍࠋ௒ᚋࡣ඲ 6 㠃ࢆ౑ࡗࡓ 3 ḟඖィ࡬ࡢᒎ㛤࠾ࡼࡧゎᯒࡢ㧗⢭ᗘ໬ࡢࡓࡵ࡟㟁Ꮚ⥺ࣅ࣮࣒ࢆ౑ࡗࡓᇶ♏≉ᛶࡢ◊✲ࢆィ⏬ࡋ࡚࠸ࡿࠋ

ᅗ 2. ⥺㔞ศᕸ㸦ᕥ㸧࡜࣐࢞ࣥ⥺ᙉᗘศᕸ㸦ྑ㸧 ᅗ 3.἞⒪ᮇ㛫୰ࡢゎ๗ࡢኚ໬࡟ࡼࡿᙳ㡪ࠋึᮇ㸦ᕥ㸧
ࠊ16 ᅇ↷ᑕᚋ㸦ྑ㸧࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
ヱᙜ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ T. Toshito, M. Kimura, O. Sato, M. Nakamura, Single Photon Emission Computed
Tomography System using Emulsion to visualize Irradiation Fields for Particle Therapy,
International Conference on Materials and Systems for Sustainability, ྡྂᒇ኱Ꮫ㸪2019 ᖺ
11 ᭶ 1 ᪥㹼3 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼ヱᙜ࡞ࡋ㸦ὀ㸧ู⣬ᵝᘧ㸰㸫㸯ࡣ㸿㸲ࢧ࢖ࢬ㸯㡫࡟ࠊู⣬ᵝᘧ㸰㸫㸰ࡣᅗ⾲➼ࢆྵࡵ࡚㸿㸲ࢧ࢖ࢬ㸰㡫࡟࡞ࡿࡼ࠺࡟ࡋ࡚ࡃࡔࡉ࠸ࠋ

33ู⣬ᵝᘧ㸰㸫㸰඲⢏Ꮚ᳨⣴ྍ⬟࡞ཎᏊ᰾஝ᯈゎᯒ࡟ࡼࡿᏱᐂ⥺㔜ཎᏊ᰾ࡢ⮬ືྠᐃ࡬ࡢᛂ⏝Applications of nuclear emulsion technologies for identifying cosmic ray nuclei
in generally scanned nuclear emulsion platesఀ௦㔝῟࣭ᒸᒣ⌮⛉኱Ꮫ࣭⌮Ꮫ㒊࣭ᩍᤵᒣᮏ⣪▮࣭ᒸᒣ⌮⛉኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭༤ኈㄢ⛬㸱ᖺᯇᕝ⛅㡢࣭ᒸᒣ⌮⛉኱Ꮫ࣭኱Ꮫ㝔⌮Ꮫ◊✲⛉࣭ಟኈㄢ⛬㸰ᖺ୰ᮧගᘅ࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭ᩍᤵబ⸨ಟ࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭ຓᩍ᳃ᓥ㑥༤࣭㧗ᗘィ ᢏ⾡ࢭࣥࢱ࣮࣭⣲⢏Ꮚィ 㒊࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ 2018 ᖺᏱᐂ࣐࢞ࣥ⥺ほᐇ㦂 GRAINE ィ⏬୪ࡧ࡟ᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤࡢ HIMAC 㔜⢏Ꮚ⥺ຍ㏿ჾ࡟࡚࠾࠸࡚㸪᳨ฟ᫬࡟㟁ຊࢆᚲせ࡜ࡋ࡞࠸✲ᴟࡢ┬࢚ࢿࣝࢠ࣮ᨺᑕ⥺᳨ฟჾ࡛࠶ࡿཎᏊ᰾஝ᯈ࡟㔜ཎᏊ᰾ࢆ↷ᑕࡋ㸪ཎᏊ᰾஝ᯈ㧗㏿
㣕㊧ㄞࡳྲྀࡾ⿦⨨ HTS ࡛ゎᯒࢆ⾜࠺ࡇ࡜࡛㸪Ᏹᐂ⥺㔜⢏Ꮚ᥈ᰝࡢ◊✲ࢆ᥎㐍ࡋ㸪┬࢚ࢿࣝࢠ࣮ᨺᑕ⥺᳨ฟჾࡢⓎᒎ࡟ᐤ୚ࡍࡿࠋ≉࡟㸪HIMAC ᐇ㦂࡟࠾࠸࡚ࡣ㸪ῶឤࡋࡓཎᏊ᰾஝ᯈࡢ

ᅗ 1 ↷ᑕ⢏Ꮚ㸦Li㸪Be㸪B㸪C㸧⢏Ꮚࡢ㟁㞳ᦆኻ࢚ࢿࣝࢠ࣮㔞࡜ྛཎᏊ᰾஝ᯈ࡛ࡢ PHV ࡢ್ࠋ㟷㸸㏻ᖖࡢཎᏊ᰾஝ᯈ㸪ᶳ㸸Rh2.5ȣmol/Ag mol㸪⅊Ⰽ㸸
Rh5.0ȣmol/Ag molࠋ

HTS ࡟࠾ࡅࡿᛶ⬟ࢆホ౯ࡋ㸪ࡑࡢᛂ⏝࡜ࡋ࡚Ᏹᐂ⥺ཎᏊ᰾ࡢྠᐃࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 HIMAC 㔜⢏Ꮚࣅ࣮࣒↷ᑕᐇ㦂࡛ࡣ㸪ࣟࢪ࣒࢘໬ྜ≀ࢆཎᏊ᰾஝ᯈ࡟ῧຍࡋῶឤࡉ㸪㔜⢏Ꮚ࡟ᑐࡍࡿ HTS ࡟ࡼࡿ㣕㊧ㄆ㆑ຠ⋡ࡢྥୖࢆᅗࡗࡓࠋࣟࢪ࣒࢘໬ྜ≀ࢆ 2.5ȣ
mol/Ag mol ࢆຍ࠼ࡓ NRHRhS㸪5.0ȣmol/Ag mol ຍ࠼ࡓ NRHRhL ୪ࡧ࡟㏻ᖖࡢཎᏊ᰾஝
ᯈ㸦RM㸧ࢆ⏝ពࡋ㸪࢚ࢿࣝࢠ࣮350MeV/u ࡢ Li㸪Be㸪B㸪C ⢏Ꮚࣅ࣮࣒↷ᑕࢆ⾜ࡗࡓࠋ஝ᯈ୰ࡢ㣕㊧ㄆ㆑ࡣ HTS ࡛⾜࠸㸪HTS ࡀฟຊࡍࡿ㟁㞳ᦆኻ㔞࡟┦ᙜࡍࡿ PHV(pulse
height volume)ࢆ⏝࠸࡚㸪᰾✀ྠᐃࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝ㸪ᅗ 1 ࡢᵝ࡟㸪㏻ᖖࡢཎᏊ᰾஝ᯈ
RM ࡛ࡣ㸪࣒࣋ࣜࣜ࢘ཎᏊ᰾௨ୖࡢ㟁㞳ᦆኻ㔞࡛ࡣศゎ⬟ࡀ↓ࡃ㸪Rh ໬ྜ≀ࢆຍ࠼ࡿ34

ࡇ࡜࡛㸪ࡼࡾ㔜࠸ཎᏊ᰾࡟ᑐࡋ࡚㸪PHV ࡟ࡼࡿཎᏊ᰾ྠᐃࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓࠋࡇࡢ⤖ᯝ࡟ࡘ࠸࡚ࡣ㸪2019 ᖺ෗┿Ꮫ఍ㄅ࡟ᰝㄞ௜ࡁㄽᩥᥖ㍕ࡉࢀࡓࠋᅗ 2 Rh2.5ȣmol/Ag mol ῧຍཎᏊ᰾஝ᯈࡢ PHV ᖹᆒ್ศᕸࠋ
㸦A㸧:ࣟࢪ࣒࢘

ῧຍ㔞ࡢᑡ࡞࠸ཎᏊ᰾஝ᯈࢆ౑ࡗ࡚㣕㊧᳨ฟࢆࡋࡓሙྜࠋ
㸦B㸧㸸ࣟࢪ࣒࢘ῧຍ
㔞ࡢከ࠸ཎᏊ᰾஝ᯈ࡟࠾ࡅࡿ㣕㊧ࢆཎᏊ᰾ྠᐃࡢࢺ࣮ࣜ࢞࡜ࡋࡓሙྜࠋ
ࡲࡓ㸪ୖグࡢ⤖ᯝࢆᛂ⏝ࡋ࡚㸪2018 ᖺ GRAINE ᐇ㦂࡛Ẽ⌫࡟ᦚ㍕ࡋࡓῶឤࡋࡓཎᏊ
᰾஝ᯈࡢ PHV ゎᯒࡢ⤖ᯝࢆᅗ㸰࡟♧ࡋࡓࠋᏱᐂ⥺ཎᏊ᰾ H㸪He㸪Li ᡂศ࡜ CNO ࡞࡝ࡢ㔜ཎᏊ᰾ࡢᘚูࡀྍ⬟࡜࡞ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Saya Yamamoto, Shigeki Aoki, Atsushi Iyono, Keita Ozaki, Satoshi Kodaira andMisatoYabu1,”Desensitized Nuclear Emulsion Films for Measuring the ChemicalComposition of Cosmic-ray Nuclei”, Bull. Soc. Photogr. Imag. Japan., Vol. 29, No. 2:
20-26(2019.12)
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ఀ௦㔝῟ ௚㸪͆GRAINE2018 ࣮࢜ࢫࢺࣛࣜ࢔Ẽ⌫ࣇࣛ࢖ࢺ㸸㔜⢏Ꮚࢳ࢙ࣥࣂ࣮࡟ࡼ
ࡿ㔜⢏Ꮚゎᯒ͇㸪᪥ᮏ≀⌮Ꮫ఍➨㸵㸲ᅇᖺḟ኱఍㸪஑ᕞ኱Ꮫ ఀ㒔࢟ࣕࣥࣃࢫ㸪2019ᖺ 3 ᭶ 14㹼17 ᪥㸬࣭ఀ௦㔝῟㸪͆GRAINE ィ⏬㸸2018 ㇦ᕞẼ⌫ᐇ㦂పឤᗘ໬ཎᏊ᰾஝ᯈ࡟ࡼࡿᏱᐂ⥺ཎᏊ᰾ほ͇㸪➨ 33 ᅇᅛయ㣕㊧᳨ฟჾ◊✲఍㸪ྡྂᒇ኱Ꮫ ES 㤋㸪2019 ᖺ 3 ᭶ 24-25㸬

࣭ Atsushi Iyono et al., ”Measurements of Cosmic Ray Nuclei with Balloon-borne
Emulsion Gamma ray Telescope Experiments (GRAINE) and with HIMAC Heavy
Ion Beam experiments”, International Conference on Materials ans Systems forsustainability(ICMaSS2019)㸪ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥㸬࣭Saya Yamamoto et al., “Development of desensitized nuclear emulsion films for
exploring the composition of cosmic ray nuclei” 㸪 International Conference on
Materials ans Systems for sustainability(ICMaSS2019)㸪ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1
᪥㹼3 ᪥㸬
㸺⏘ᴗ㈈⏘ᶒ㸼࣭ヱᙜ࡞ࡋ35ู⣬ᵝᘧ㸰㸫㸰ྂ௦♫఍࡟࠾ࡅࡿ㈨※㓄⤥ࢿࢵࢺ࣮࣡ࢡࡢᩘ್ゎᯒ
Analysis of network system for resource in ancient society◊✲௦⾲⪅ す⸨Ύ⚽ ዉⰋ┴❧᷃ཎ⪃ྂᏛ◊✲ᡤ ᢏ⾡࢔ࢻࣂ࢖ࢨ࣮
◊✲ศᢸ⪅  ▼㯮຾ᕫ࣭ዉⰋ┴❧᷃ཎ⪃ྂᏛ◊✲ᡤ࣭ඹྠ◊✲ဨ         㛗⦖┤ᓫ ྡྂᒇ኱Ꮫ ◊✲ဨ◊✲ᡤᢸᙜᩍဨ ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤᩍᤵ㸯㸬◊✲┠ⓗ㐣ཤࠊ⌧ᅾ࡟࠾ࡅࡿ㒔ᕷ㛫ࡢ㈨※㓄⤥⤒㊰ࡀ࡝ࡢࡼ࠺࡞ࢿࢵࢺ࣮࣡ࢡ࡟࡞ࡗ࡚࠸ࡓࡢ
࠿ࢆゎ᫂ࡋ࡞ࡀࡽẚ㍑ࡍࡿࠋྂ௦᪥ᮏ࡟࠾࠸࡚ᡓதࡸ⅏ᐖ࡛㈨※㓄⤥⤒㊰ࡀ㏵⤯࠼ࡿࣜࢫࢡࡣ⌧௦௨ୖࡔࡗࡓ࡜⪃࠼ࡽࢀࠊ୍㒊ࡀษࢀ࡚ࡶᶵ⬟ࡍࡿࡼ࠺࡞ࢿࢵࢺ࣮࣡ࢡࢆᕤኵ
ࡋ࡚ᵓ⠏ࡋ࡚࠸ࡓྍ⬟ᛶࡀ࠶ࡿࠋࢿࢵࢺ࣮࣡ࢡࡢ≉ᚩ㔞ࢆㄪ࡭ࡿࡇ࡜࡛ᮍ᮶࡟㐩ᡂࡉࢀ
ࡿ࡭ࡁ㈨※㓄⤥ࢿࢵࢺ࣮࣡ࢡࢆ⪃࠼ࡿ࠺࠼࡛ࡢ୍ຓ࡟ࡋࡓ࠸ࠋ≉࡟௒ᅇࠊྂ௦஑ᕞ࡟࠾
ࡅࡿ」ᩘࡢ㞟ⴠ㑇㊧࡟࠾ࡅࡿฟᅵᅵჾ㔞ࢆࡶ࡜࡟㞟ⴠ㛫ࡢ㛵ಀࡢ῝ࡉࢆᐃ㔞໬ࡋࠊ⧅ࡀ
ࡾࢆᅗ໬ࡋࡓࠋ⪃ྂᏛ࡟࠾࠸࡚ྂ௦♫఍࡟࠾ࡅࡿ㞟ⴠࠊ㒔ᕷ㛫ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥࡢᐃ㔞ⓗ࡞ホ౯ࡣ㔜せ࡞ㄢ㢟࡛ࡶ࠶ࡗࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ඹ㏻ࡢฟᅵᅵჾ㔞ࡢ࿴ࡢ኱ࡁ࠸㞟ⴠྠኈࡣ࡞ࢇࡽ࠿ࡢ㛵ಀࡀ࠶ࡿ࡜ᐃ⩏ࡍࡿࠋࡑࡢ௬
ᐃࡢࡶ࡜࡛ࠊ࠶ࡿ✀㢮ࡢᅵჾࡢฟᅵ㔞ࡢ࿴ࡀ≉࡟㧗࠸㞟ⴠྠኈࢆ⤖ࡧ௜ࡅࡿࡇ࡜ࡀ࡛ࡁ
ࡿࠋࡇࡢࡼ࠺࡞ࢿࢵࢺ࣮࣡ࢡࡣᩘᏛⓗࢢࣛࣇ⌮ㄽศ㔝࡟࠾࠸࡚ࡣ㜈್ࣔࢹࣝ࡜ࡋ࡚◊✲ࡉࢀ࡚࠾ࡾᐃ㔞ⓗ࡞ゎᯒࡀྍ⬟࡛࠶ࡿࠋྂ௦஑ᕞࡢ㞟ⴠ࡟㛵ࡋ࡚࠸ࢁ࠸ࢁ࡞ ᅵჾࡢฟᅵ㔞(ᅗ 1)ࢆ⏝࠸࡚ࢢࣛࣇ໬ࢆ⾜࠺ࡇ࡜࡛㞟ⴠ A㹼G ࡟㛵ࡋ࡚ᅗ 2 ࡢࡼ࠺࡞㛵ಀᅗࢆᚓ
ࡓࠋB ࠿ࡽ D ࡣ┤᥋࡟ࡣ⤖ࡤࢀ࡚࠸࡞࠸ࡀ E ࡸ F ࢆ ⤒⏤ࡍࡿࡇ࡜࡛⤖ࡤࢀ࡚࠸ࡿࠋྛ
㞟ⴠࡈ࡜ࡢ㛵ಀࡢᗘྜ࠸ࡣ 2 ⪅㛫௨እࢆ⤒⏤ࡍࡿ⤒㊰ࡶ⪃࠼࡚ᅗࡢࡼ࠺࡞┦ᑐ್ࢆᚓࡓ(್ࡀᑠࡉ࠸࡯࡝㛵ಀࡀὸ࠸)ࠋࡇࢀࡣ㞟ⴠ㛫ࡢ⥺ࢆ㟁Ẽᅇ㊰ࡢ᢬ᢠ࡛࠶ࡿ࡜ࡋ࡚ࠊྛ
㞟ⴠ㛫ࡢ᢬ᢠ್ࢆ

ࡗ࡚㏫ᩘࢆ࡜ࡿࡢ࡜ᩘᏛⓗ࡟ྠࡌホ౯ࢆࡋ࡚࠸ࡿࡢ࡛ࠊ௒ᅇࡣᐇ㝿

࡟ᅇ㊰ࢆ
⤌ࢇ࡛㟁
ᅽィ࡛᢬
ᢠࢆ

ࡿ

ࡇ࡜࡛ᩘ
್ࢆᚓࡓࠋ

36

㸱⤖ᯝࠊᒎᮃ
సᡂࡋࡓᅗ  ࡢࢿࢵࢺ࣮࣡ࢡࡢ≉ᚩ࡜ࡋ࡚ࠊ㸱ࡘࡢ㞟ⴠ࡛෇⎔ࢆᡂࡋ࡚࠸ࡿ⟠ᡤࡀ  ࠿ᡤ࠶ࡿ࡞࡝ࡢ≉ᚩࡀㄞࡳྲྀࢀࡿࠋ௚ࡢᆅᇦࡸ᫬௦ࡢࢿࢵࢺ࣮࣡ࢡ࡜ࡢ
ẚ㍑ࡀ௒ᚋࡢㄢ㢟࡛࠶ࡿࠋྛ㞟ⴠࡈ࡜ࡢ㛵ಀࡢᗘྜ࠸
࡜ࡋ࡚ᅗ  ࡢࡼ࠺࡞┦ᑐ್ࢆᚓࡓࠋ್ࡀᑠࡉ࡞ࡶࡢ࡯
࡝㛵ಀࡀὸ࠸ࠋࡇࡢ್ࢆ㡰ิ໬ࡋࡓࡢࡀᅗ  ࡛࠶ࡿࠋ
㏆␥ᆅ᪉ࡢᘺ⏕᫬௦ࡢ㞟ⴠ㑇㊧ࡸ⌧௦ࡢࢿࢵࢺ࣡
࣮ࢡ࡟ࡘ࠸࡚ࡶ◊✲ࢆ㐍ࡵ࡚࠸࡚ඹ㏻Ⅼࡸ┦㐪Ⅼࢆㄪ࡭࡚࠸ࡿࠋࡲࡓゎᯒ⤖ᯝࢆከゅⓗ࡟⌮ゎࡍࡿࡓࡵࡢ
ᩥ⊩ㄪᰝࡸᮍⓎ᥀ྂቡࡢ࣑࣮ࣗ࢜
ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ࡼࡿㄪᰝ◊✲ࡶ⾜ࡗ࡚࠸ࡿࠋ࣑࣮ࣗ࢜ࣥࣛࢪ
࢜ࢢࣛࣇ࢕࣮࡟㛵ࡋ࡚ᮏᖺᗘࡣ⠂቎ྂቡࡑࡤ࡟ཎᏊ᰾஝ᯈࡢタ⨨ࢆ⾜࠸࣑࣮ࣗ࢜ࣥᩘࢹ࣮ࢱࡢ཰㞟ࢆ⾜ࡗࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦㸺ཎⴭㄽᩥ㸼▼㯮຾ᕫ 㛗⦖┤ᓫ す⸨Ύ⚽ࠕྂ௦♫఍ࢥ࣑ࣗࢽࢣ࣮ࢩࣙࣥࡢฟᅵᅵჾ㔞ࢆࡶ࡜࡟ࡋࡓホ౯ࠖࠗ᪥ᮏᩥ໬㈈⛉Ꮫ఍◊✲ᡂᯝᴫせ㞟 ࠘-XQH
 ,VKLJXURNDWVXPL6DLWR.L\RKLGHࠕ6WXG\RIFXOWXUDOSURSHUWLHVE\WKHWHFKQLTXHRIFRVPLF
UD\SK\VLFVࠖࠗ,F0DVVDEVWUDFWV ࠘2FW

㸺ᅜ㝿࣭ᅜෆ఍㆟㸼 ▼㯮຾ᕫ 㛗⦖┤ᓫす⸨Ύ⚽ ࠕྂ௦♫఍ࢥ࣑ࣗࢽࢣ
࣮ࢩࣙࣥࡢฟᅵᅵჾ㔞ࢆࡶ࡜࡟ࡋࡓホ౯ࠖ ᪥ᮏᩥ໬㈈⛉Ꮫ఍  ᖺ኱఍   ᖺ  ᭶

.DWVXPL ,VKLJXUR  .L\RKLGH 6DLWR ࠕ ,F0DVV

6WXG\RIFXOWXUDOSURSHUWLHVE\WKHWHFKQLTXHRIFRVPLF
UD\SK\VLFVࠖ,F0DVV2FW

37ู⣬ᵝᘧ㸰㸫㸰ᗈど㔝࡛ࡢ㧗㏿ㄞࡳฟࡋ࡟ྥࡅࡓ᪂ࢱ࢖ࣉ࢚࣐ࣝࢩ᳨ࣙࣥฟჾ㛤Ⓨ
Development of a new type of emulsion detector for a faster readout
᭷㈡ᬛᏊ࣭஑ᕞ኱Ꮫ࣭ᇶᖿᩍ⫱㝔࣭ຓᩍ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ࢚࣐ࣝࢩࣙࣥ㣕㊧᳨ฟჾࡣࠊ⣲⢏Ꮚ≀⌮ᏛࡢⓎᒎ࡟ᐤ୚ࡋ࡚ࡁࡓ⢏Ꮚ᳨ฟჾࡢ 1 ࡘ࡛࠶ࡾࠊ᭱ࡶ㧗࠸఩⨨⢭ᗘࢆ᭷ࡍࡿ 3 ḟඖࢺࣛࢵ࢟ࣥࢢࢹࣂ࢖ࢫ࡛࠶ࡿࠋࡑࡢᙉࡳࢆ⏕࠿ࡋ࡚ࠊࢽ࣮ࣗࢺࣜࣀ◊✲ࡢ௚ࠊ཯≀㉁ࡢ◊✲ࡸᏱᐂ⥺ࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ࡼࡿ࢔ࣝࣉࢫ
ịἙࡢෆ㒊ᵓ㐀ࡢ࢖࣓࣮ࢪࣥࢢ࡞࡝ᵝࠎ࡞ศ㔝࡛ࡢᛂ⏝ࢆᒎ㛤ࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊᚑ᮶ࡼࡾࡶ 10 ಸ⛬ᗘ኱ࡁ࡞ࣁࣟࢤࣥ໬㖟⤖ᬗࢆ⏝࠸ࡓ᪂ࢱ࢖ࣉ᳨ฟჾࢆ㛤Ⓨࡋࠊᗈど㔝࡛ࡢ㧗㏿ㄞࡳฟࡋࡸࣇ࢕࣒ࣝࢫ࢟ࣕࢼ࣮࡟ࡼࡿ⡆౽࡞ㄞࡳฟࡋࢆྍ⬟࡟ࡍࡿࡇ࡜࡟
ࡼࡾࠊࡼࡾ኱つᶍ࡞ᛂ⏝ࡸ᪂ࡓ࡞◊✲ࢆ㛤ᣅࡍࡿࡇ࡜ࢆ┠ᣦࡋ࡚࠸ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᕧ኱⤖ᬗࢆ⏝࠸ࡓ᪂ࢱ࢖ࣉ᳨ฟჾ࡜ࣇ࢕࣒ࣝࢫ࢟ࣕࢼ࣮࡟ࡼࡿ⡆᫆࡞ゎᯒ᪉ἲࡢ㛤Ⓨࡣࠊࡇࢀࡲ࡛࡟࡞࠸ࢥࣥࢭࣉࢺ࡛௒ᚋࡢ࢚࣐ࣝࢩࣙࣥᢏ⾡ࡢỗ⏝ᛶࢆ㧗ࡵࡿᵓ᝿࡛࠶
ࡿࠋᮏ◊✲࡛ᥦ᱌ࡍࡿᢏ⾡㛤Ⓨࡣࠊ⣲⢏Ꮚᐇ㦂࡟࠾ࡅࡿ᭱ඛ➃ࡢࢽ࣮ࣗࢺࣜࣀ◊✲ࠊᆅ⌫⛉Ꮫศ㔝࡟࠾ࡅࡿᏱᐂ⥺࣑࣮ࣗ࢜ࣥ࡟ࡼࡿ࢖࣓࣮ࢪࣥࢢࡢ኱つᶍࡲࡓࡣ㛗ᮇⓗ࡞ほ࡞ほ ࡟ࡼࡿịἙᏛࡢ㐍ᒎࠊኚືࡢࣔࢽࢱࣜࣥࢢࠊᕤᏛᛂ⏝࡟࠾ࡅࡿ୰ᛶᏊ࢖࣓࣮ࢪ
ࣥࢢ࡞࡝ࠊᵝࠎ࡞ᛂ⏝࡟ࡘ࡞ࡀࡿࠋࡲࡓࠊ≉Ṧ࡞タഛࢆᚲせ࡜ࡋ࡞ࡃ࡞ࡿࡇ࡜࡛ࠊ≀⌮ࡸᨺᑕ⥺࡟㛵ࡍࡿᩍ⫱࡞࡝࡟ά⏝࡛ࡁࡿ࡜⪃࠼࡚࠸ࡿࠋ
ࡇࡢᵓ᝿ࢆ⏕࠿ࡍ◊✲࡜ࡋ࡚ࠊᏱᐂ⥺࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮ࢆ⏝࠸ࡓࢫ࢖ࢫᒣ
ᓅịἙࡢ࢖࣓࣮ࢪࣥࢢࡢ◊✲ࢆᐇ᪋ࡋ࡚ࡁࡓࠋࡇࡢᡭἲࡣ X ⥺᳨ᰝ࡜ྠᵝࡢཎ⌮࡛ࠊᑐ㇟࡜ࡍࡿᵓ㐀≀ࢆ㏱㐣ࡋ࡚ࡁࡓᏱᐂ⥺࣑࣮ࣗ࢜ࣥࢆ᳨ฟࡋ࡚ෆ㒊ᵓ㐀ࢆ㏱どࡍࡿ࢖࣓࣮ࢪࣥࢢᢏ⾡࡛࠶ࡿࠋ࢚࣐ࣝࢩ᳨ࣙࣥฟჾࢆ⏝࠸ࡓࢫ࢖ࢫ࣭࢔࢖࣮࢞ịἙࡢෆ㒊ほࢆึࡵ࡚ᐇ᪋ࡋࠊࡑࡢ⤖ᯝࡀ Scientific Reports ㄅ࡟ᥖ㍕ࡉࢀࡓ [1]ࠋࡇࡢほ࡟ࡼࡾࠊịἙࡢᾐ㣗ࡀࡇࢀࡲ࡛࡟⪃࠼ࡽࢀ࡚࠸ࡓࡼࡾࡶᶆ㧗ࡢ㧗࠸㡿ᇦ࡛ࡶ㉳ࡇࡿࡇ࡜ࡀศ࠿
ࡗࡓ㸦ᅗ 1㸧ࠋ᪂᳨ฟჾࡢ㛤Ⓨ࡟ࡼࡾࠊ௒ᚋࡇࡢࡼ࠺࡞◊✲ࢆࡉࡽ࡟Ⓨᒎࡉࡏࡿࡇ࡜࡟
ࡘ࡞ࡆࡓ࠸࡜⪃࠼࡚࠸ࡿࠋ
[1] R. Nishiyama, A. Ariga, T. Ariga, A. Lechmann, D. Mair, C. Pistillo, P. Scampoli, P. G. Valla,
M. Vladymyrov, A. Ereditato and F. Schlunegger, Bedrock sculpting under an active alpine
glacier revealed from cosmic-ray muon radiography, Scientific Reports 9, Article number: 6970
(2019).

38ᅗ 1㸸࢔࢖࣮࢞ịἙෆ㒊ࡢᒾ┙ࡢほ⤖ᯝࠋ(a)࠿ࡽ(e)ࡣὶࢀ࡜ᆶ┤ࠊ(f)ࡣὶࢀ࡜୪⾜࡞᩿㠃ࠋ㸦ฟ඾㸸[1]㸧

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ A. Ariga, T. Ariga, A. Lechmann, D. Mair, , R. Nishiyama, C. Pistillo, P. Scampoli, P. G.
Valla, M. Vladymyrov, A. Ereditato and F. Schlunegger, Steep bedrock topography beneathan active alpine glacier discovered by muon radiography, ICMaSS 2019, Nagoya University,
November 1-3, 2019.

39ู⣬ᵝᘧ㸰㸫㸰㝧Ꮚ⥺↷ᑕሙ୰ࡢ㉸㧗㏿஧ḟ୰ᛶᏊࡢᐃ

Very fast secondary neutron measurements in proton therapyᮌᮧ඘ᏹ ྡྂᒇᕷ⑓㝔ᒁす㒊་⒪ࢭࣥࢱ࣮
ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮㝧Ꮚ⥺἞⒪≀⌮⛉ᢏᖌ㸦་Ꮫ≀⌮㸧୰ᮧගᘅ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ⣲⢏Ꮚィ 㒊 ᩍᤵబ⸨ಟ  ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ⣲⢏Ꮚィ 㒊 ຓᩍ㸯㸬◊✲┠ⓗ ᮏ◊✲ࡣ㝧Ꮚ⥺↷ᑕሙ୰࡛Ⓨ⏕ࡍࡿ 20 MeV ௨ୖࡢ࢚ࢿࣝࢠ࣮ࢆࡶࡘ୰ᛶᏊࡢ࢚ࢿࣝࢠ
࣮ศᕸࢆཎᏊ᰾஝ᯈ᳨ฟჾ࡛ ᐃࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㝧Ꮚ⥺ࡀࢇ἞⒪ࡣ㸪㝧Ꮚ⥺ࡀᣢࡘࣈࣛࢵࢢࣆ࣮ࢡࡢ≉ᛶࢆ౑࠸㸪⭘⒆ࡢ㍯㒌࡟୍⮴ࡍࡿ⥺㔞ศᕸࢆసᡂ࡛ࡁࡿ㸬ࡇࢀ࡟ࡼࡾᚑ᮶ࡢ X ⥺἞⒪ࡼࡾࡶ㞀ᐖⓎ⏕ࣜࢫࢡࢆపࡃᢚ
ไ࡛ࡁࡿ㸬୍᪉㸪୍ḟ㝧Ꮚ⥺ࡣ࢞ࣥࢺ࣮ࣜࣀࢬࣝ࠶ࡿ࠸ࡣᝈ⪅యෆ࡛ᩓ஘ࢆ㉳ࡇࡋ㸪୰ᛶᏊࡸ J⥺ࢆⓎ⏕ࡉࡏࡿ㸬ࡇࢀࡽࡢ஧ḟᡂศࡣ㸪ᶆⓗయ✚እ࡟⥺㔞ࢆ௜୚ࡋ㸪஧ḟࡀࢇࡢⓎ⏕ࣜࢫࢡࢆ㧗ࡵࡿ㸬⌧ᅾࡢ἞⒪ィ⏬ࢩࢫࢸ࣒ࡣ୍ḟ㝧Ꮚ⥺ࡢ⥺㔞ศᕸࢆṇ☜࡟ィ⟬࡛ࡁࡿࡀ㸪஧ḟᡂศ࡟ࡼࡿ⥺㔞௜୚ࡣィ⟬ࡋ࡚࠸࡞࠸㸬஧ḟᡂศࡢᩓ஘ࢆィ⟬ࡍࡿࡓࡵ࡟ᚲせ࡞ࢹ࣮ࢱࡣ㸪Ⲵ㟁⢏Ꮚ࡟ࡼࡿࡀࢇ἞⒪ࡢሙྜ㸪ࡑࢀ࡯࡝ከࡃ࡞࠸㸬஧ḟᡂศࡣ୰ᛶᏊࡸ J⥺࠿ࡽᵓᡂࡉࢀࡿࡓࡵ㸪ࡑࡢ᳨ฟჾࡣ⢏Ꮚࢆ㆑ูࡍࡿ⬟ຊࡀせồࡉࢀࡿ㸬ᮏ◊✲࡛ࡣࢧࣈ࣑ࢡࣟࣥࡢ✵㛫ศゎ⬟ࢆࡶࡘཎᏊ᰾஝ᯈ
ࢆ⏝࠸࡚㸪㝧Ꮚ⥺↷ᑕሙ࠿ࡽⓎ⏕ࡋࡓ஧ḟᡂศ࡟ྵࡲࢀࡿ⢏Ꮚࡢ㆑ูࢆ⾜࠸㸪㝧Ꮚ⥺἞⒪୰ࡢ஧ḟᡂศࡢ

ᐃࢆヨࡳࡓ㸬

ྡྂᒇ㝧Ꮚ⥺἞⒪ࢭࣥࢱ࣮ࡢࢫ࣏ࢵࢺ
ࢫ࢟ࣕࣥࢽࣥࢢࢩࢫࢸ࣒࡜ࣃࢵࢩࣈ↷ᑕࢩࢫࢸ࣒ࢆ౑⏝ࡋ࡚㸪㝧Ꮚ⥺↷ᑕࢆᐇ᪋ࡋ
ࡓ㸬ᐇ㦂ࢭࢵࢺ࢔ࢵࣉ࡜᳨ฟჾࡢᵓ㐀ࢆᅗ
1 ࡟♧ࡍ㸬ཌࡉ 20 cm ࡢᅛయỈࣇ࢓ࣥࢺ࣒
㸦ி㒔໬Ꮫᰴᘧ఍♫〇㸧࡟ᑐࡋ㸪10 x 10 x
10 cm3 ࡢయ✚୰ࡢ⥺㔞ࡀ 1 Gy ࡟࡞ࡿࡼ࠺
㝧Ꮚ⥺ࢆ↷ᑕࡋࡓ㸬஧ࡘࡢ↷ᑕࢩࢫࢸ࣒࡛

ᅗ 1. ᐇ㦂ࢭࢵࢺ࢔ࢵࣉࡢᶍᘧᅗ㸬ࢭࢵࢺ࡯ࡰྠ୍ࡢ⥺㔞ศᕸࡀᚓࡽࢀࡿࡼ࠺㸪἞⒪࢔ࢵࣉୖ᪉ࡢࢢࣛࣇࡣ୍ḟ㝧Ꮚ⥺ࡢ⥺㔞ィ⏬⿦⨨ VQA㸦᪥❧〇సᡤ㸧ࢆ౑⏝ࡋ࡚㸪ࡢ῝ࡉⓒศ⋡㸬୍ḟ㝧Ꮚ⥺ࡣᅛయỈࣇ࢓↷ᑕィ⏬ࢆ❧᱌ࡋࡓ㸬ࣥࢺ࣒୰࡛೵Ṇࡋ㸪஧ḟᡂศࢆᵓᡂࡍࡿ

ཎᏊ᰾஝ᯈ 24 ᯛࢆ✚ᒙࡋࡓ᳨ฟჾࡣᅛ

⢏Ꮚࡀ᳨ฟჾ࡟฿㐩ࡍࡿ㸬యỈࣇ࢓ࣥࢺ࣒ᚋ᪉࡟タ⨨ࡋࡓ㸬㝧Ꮚ⥺↷40ᑕᚋࡢ஝ᯈࡣ⌧ീᾮ XAAࢆ౑⏝ࡋ࡚㸪20Υ࡛ 25 ศ㛫ࡢ⌧ീฎ⌮ࢆ⾜ࡗࡓ㸬⌧ീࡋࡓ஝ᯈࡢ࠺ࡕ㸪᭱ୖὶ࡟タ⨨ࡉࢀࡓ஝ᯈࡢ㢧ᚤ㙾⏬ീࢆᅗ 2 ࡟♧ࡍ㸬ࣃࢵࢩࣈ↷ᑕ⿦⨨࡛㝧Ꮚ⥺ࢆ↷ᑕࡋࡓཎᏊ᰾஝ᯈࡢ᪉ࡀ㸪 ᅗ 2. ᭱ୖὶ࡟タ⨨ࡉࢀࡓཎᏊ᰾஝ᯈࡢ㢧ᚤ㙾෗┿㸬(a)ࢫ࣏ࢵࢺࢫ࢟ࣕࣥࢽࣥࢢ⿦ ࢫ࣏ࢵࢺࢫ࢟ࣕࣥࢽࣥࢢࢩࢫࢸ࣒࡜ (b) ࣃࢵࢩࣈ↷ᑕ⨨ࡢ஝ᯈ࡜ẚ࡭࡚㸪᫂ࡽ࠿ࢩࢫࢸ࣒࡛↷ᑕࡋࡓሙྜ㸬࡟㣕㊧ᩘࡀᩘಸከ࠸ࡇ࡜ࡀ
ࢃ࠿ࡿ㸬≀㉁ࢆ㏻㐣ࡉࡏ࡚ࣅ࣮࣒ࢆᡂᙧࡍࡿࣃࢵࢩࣈ↷ᑕࢩࢫࢸ࣒ࡣ㸪༢Ⰽ࢚ࢿࣝࢠ࣮
ࡢࣅ࣮࣒఩⨨࡜࢚ࢿࣝࢠ࣮ࢆ㉮ᰝࡋ࡚↷ᑕ㔝ࢆసࡿࢫ࣏ࢵࢺࢫ࢟ࣕࣥࢽࣥࢢࢩࢫࢸ࣒
ࡼࡾࡶ㸪୍᱆⛬ᗘ㧗࠸ᙉᗘࡢ୰ᛶᏊࢆ⏕ᡂࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࡀ㸪ࡇࡢ⤖ᯝࡣண᝿࡜
ᐃᛶⓗ࡟୍⮴ࡋ࡚࠸ࡿ㸬 ྡྂᒇ኱Ꮫ≀⌮ F ◊ࡢ඲⮬ື㣕㊧ㄞࡳྲྀࡾ⿦⨨ HTS ࢆ⏝࠸࡚㸪஝ᯈ 4 cm x 4 cm ࡢ㡿ᇦࢆࢫ࢟ࣕࣥࡋ㸪グ㘓ࡉࢀࡓゅᗘ tan T < 1.5 ࡢ㣕㊧᝟ሗࢆྲྀᚓࡋࡓ㸬ㄞࡳྲྀࡗࡓ㣕㊧ࡣ㸪࢜ࣇࣛ࢖ࣥࢯࣇࢺ࢙࢘࢔ࢆ⏝࠸࡚᥋⥆ࡋࡓ㸬ࡑࡢ⤖ᯝ㸪ࢫ࣏ࢵࢺࢫ࢟ࣕࣥࢽࣥࢢࢩࢫࢸ
࣒࡛㝧Ꮚ⥺ࢆ↷ᑕࡋࡓཎᏊ᰾஝ᯈ᳨ฟჾࡢ๓ẁ㒊ࢆᵓᡂࡍࡿ஝ᯈ 4 ᯛࡢ࠺ࡕ㸪3 ᯛ௨ୖ㈏㏻ࡋࡓ㣕㊧ 2 x 102 ᮏࢆᚓࡓ㸬⌧ᅾ㸪ࣃࢵࢩࣈ↷ᑕࢩࢫࢸ࣒ࢆ⏝࠸࡚㝧Ꮚ⥺ࢆ↷ᑕࡋࡓ᳨ฟჾ࡟ࡘ࠸࡚㸪ゎᯒࢆ㐍ࡵ࡚࠸ࡿ㸬௒ᚋ㸪ゎᯒࢆ㐍ࡵ㸪㝧Ꮚ⥺↷ᑕἲࡢ㐪࠸࡟ࡼࡾ⏕ࡌࡿ஧ḟᡂศࡢ㐪࠸ࢆ᫂ࡽ࠿࡟ࡍࡿ㸬ࡲࡓ Geant4 ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜࠸㸪ᐇ㦂⤖ᯝ࡜ࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࢆẚ㍑ࡋ࡚㸪ࢩ࣑࣮ࣗࣞࢩࣙࣥࡢ≀⌮ࣔࢹࣝࡢጇᙜᛶ࡟ࡘ࠸᳨࡚ウࡍࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
ヱᙜ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Mitsuhiro Kimura, Toshiyuki Toshito 㸪 Hiroyuki Ogino 㸪 Yuta Shibamoto 㸪 Mitsuhiro
Nakamura㸪and Osamu Sato㸪”Secondary neutron measurements in proton therapy with
nuclear emulsion”㸪 International Conference on Materials and Systems for Sustainability
2019 (ICMaSS2019)㸪Nagoya University㸪Nov. 2019.
㸺⏘ᴗ㈈⏘ᶒ㸼ヱᙜ࡞ࡋ41ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ⢏Ꮚ᳨ฟჾ࡟࠾ࡅࡿ㐠ື㔞ᐃᢏ⾡ࡢ㧗ᗘ໬

Upgrading of momentum measurement techniques in emulsion-based particle detectors     ῰㇂ ᐶ࣭ᮾ㑥኱Ꮫ࣭⌮Ꮫ㒊࣭ᩍᤵᑠᕝ ஢࣭ᮾ㑥኱Ꮫ࣭⌮Ꮫ㒊࣭ᩍᤵᯇᑿ཭࿴࣭ᮾ㑥኱Ꮫ࣭⌮Ꮫ㒊࣭⛉◊㈝⮫᫬◊✲ဨ㭯ᒸ༓✑࣭ᮾ㑥኱Ꮫ኱Ꮫ㝔࣭⌮Ꮫ◊✲⛉࣭0௚  ྡ୰ᮧගᘅ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵబ⸨ ಟ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ ௒᪥ࠊཎᏊ᰾஝ᯈࢆ⏝࠸ࡓᨺᑕ⥺⢏Ꮚ᳨ฟჾࡣࠊࡑࡢඃࢀࡓ✵㛫ศゎ⬟࡟ࡼࡾࢽ࣮ࣗࢺࣜࣀ≀⌮ࢆ┠ⓗ࡜ࡋࡓ⣲⢏Ꮚᐇ㦂࡞࡝⣧⢋⌮Ꮫࡢ◊✲࡟ጾຊࢆⓎ᥹ࡍࡿ࡜࡜ࡶ࡟ࠊࢥࣥࣃࢡࢺ࠿ࡘ㟁※୙せ࡞࡝ࡢ≉㛗ࢆేࡏᣢࡘ
ࡓࡵࠊᏱᐂ⥺࣑࣮ࣗ⢏Ꮚ࡛኱ᆺᵓ㐀≀ෆ㒊ࢆ㏱どࡍࡿ࣑࣮ࣗ࢜ࣥࣛࢪ࢜ࢢࣛࣇ࢕࣮࡟ᛂ⏝ࡉࢀࡿ࡞࡝ά⏝ࡢሙࢆᗈࡆ࡚࠸ࡿࠋࡑࡢ୰࡛㐠ື㔞 ᐃᢏ⾡ࡢ㧗ᗘ໬ࠊ ᐃ⢭ᗘࡢྥୖࡣႚ⥭ࡢㄢ㢟࡛࠶ࡿࠋᡃࠎࡣ௨๓࠿ࡽᵝࠎ࡞ᐇ㦂࡟࠾࠸࡚Ⲵ㟁⢏Ꮚࡢ㐠ື㔞 ᐃࢆᢸᙜࡋ࡚ࡁࡓࡀࠊᮏඹྠ฼⏝࣭ඹྠ◊✲࡛ࡉࡽ࡟㧗ᗘ໬ࢆᅗࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࢥࣥࣃࢡࢺ࣭࢚࣐ࣝࢩ࣭ࣙࣥࢫ࣌ࢡࢺ࣓࣮ࣟࢱ࣮(CES)ࡢ◊✲࡛ࡣࠊ๓ᖺᗘࡲ࡛ࡢḢᕞཎᏊ᰾◊✲ᶵ㛵
CERN ࡛ࡢࣅ࣮࣒↷ᑕᐇ㦂࡟ࡼࡾࠊ௨๓ࡢཎ⌮᳨ドᐇ㦂࡜ẚ࡭ࠊᗈ࠸㠃✚ࠊᗈ࠸ゅᗘ⠊ᅖ࡛౑⏝ྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋࡲࡓࠊ࣮࣋ࢫ⣲ᮦ࡜ࡋ࡚ࡣ࣏ࣜࢫࢳࣞࣥࣇ࢕࣒ࣝࠊ࢔ࢡࣜࣝᯈ࡜ẚ࡭ࠊ࢞ࣛࢫᯈ
ࢆ⏝࠸ࡓཎᏊ᰾஝ᯈࡀࡼࡾᖹ㠃ᛶ࡟ඃࢀࠊCES ⏝஝ᯈࡢ࣮࣋ࢫ⣲ᮦ࡜ࡋ࡚᭱㐺࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡉࡽ࡟ࠊCES ᵓ㐀࡜ࡋ࡚ࡣࠊࣟࣁࢭࣝᯈࢆపᐦᗘࢫ࣮࣌ࢧ࣮࡜ࡋ࡚⏝࠸ࠊࣂࢿ࡛ᢲࡉ࠼ࡿᵓ㐀ࡢࢫࢱࢵࢡࡣࣟࣁࢭࣝᯈࡢཌࡳࡀᆒ୍࡛ࡣ࡞ࡃࠊࡲࡓࣂࢿ࡟ࡼࡿᅽຊࡶ࠶ࡾࠊሙᡤ࡟ࡼࡗ࡚ᑠࡉ࡞ṍࡳࢆ⏕ࡌࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡑࡇ࡛௒ᖺᗘࡣࠊ஝ᯈࡢࡓࢃࡳ㍍ῶ࡜ᐇ㦂᫬ࡢᢅ࠸ࡸࡍࡉྥୖࢆ┠ᣦࡋ࡚ࠊ࢞ࣛࢫ࣋
࣮ࢫᯈࡢཌࡉࢆ᫖ᖺᗘࡢ 200ȣm ࠿ࡽ 500ȣm ࡟ኚ᭦ࡋࡓࠋࡉࡽ࡟ࠊࡼࡾᖹ⾜ᗘࢆቑࡋࡓ᪂ࡋ࠸✵Ẽࢠࣕࢵࣉ᪉ᘧࡢ CES ᵓ㐀యࢆ〇సࡋࡓࠋࡑࡋ࡚ࡑࡢຠᯝࢆホ౯ࡍࡿࡓࡵࠊ☢ሙ࡞ࡋࡢ≧ែ࡛ࡢᏱᐂ⥺↷ᑕᐇ㦂ࢆᐇ᪋ࡋࡓࠋ☢ሙࡀ࠶ࡿሙྜ࡜ྠᵝ࡟஝ᯈ㛫ࡢ㣕㊧ࢆ᥋⥆ࠊ෌ᵓᡂࡍࡿ࡜ࠊ☢ሙࡀ࡞࠸ࡢ࡛㣕㊧ࡢ᭤ࡀࡾࡣ࡞࠸ࠋࡑࡢ⤖ᯝࠊ㣕㊧ࡢࢧࢪࢵࢱࡣ㸮ࢆ୰ᚰ࡟ศᕸࡍࡿࠋࡑࡢศᕸࡢᖜࡣከ㔜㟁☢ᩓ஘ࠊ㣕㊧఩⨨ࡢᐃ⢭ᗘࠊ஝ᯈࡢṍࡳࡸࡓࢃࡳࢆྵࡴ࢔ࣛ࢖࣓ࣥࣥࢺ⢭ᗘࢆ཯ᫎࡋ࡚࠾ࡾࠊࡑࡢ್ࡣ☢ሙ୰࡟ᤄධ

ࡋࡓ࡜ࡁ࡜ྠࡌ࡛ࠊ㟁Ⲵ㆑ู⬟ຊࡸ㐠ື㔞ᐃ⢭ᗘ࡞࡝ࡢ CES ࡢᛶ⬟ࡣホ౯࡛ࡁࡿࠋࡓࡔࡋࠊᏱᐂ⥺࡟ࡣ㐠ື㔞ࡢప࠸⢏Ꮚࡶྵࡲࢀࠊከ㔜㟁☢ᩓ஘࡟ࡼࡾࢧࢪࢵࢱࡢᖜࢆᗈࡃࡋ࡚ࡋࡲ࠺ࡢ࡛ࠊᅗ 1 ࡢࡼ࠺࡟ࠊ
CES ࡢୗ࡟ 1mm 㖄ᯈ 2 ᯛࢆ஝ᯈ࡛ᣳࢇ࡛✚ᒙࡋࡓ࢚࣐ࣝࢩ࣭ࣙࣥࢡࣛ࢘ࢻ࣭ࢳ࢙ࣥࣂ࣮㸦ECC㸧ࢆ⨨࠸࡚㐠ື㔞ࢆᐃࡋࠊ㐠ື㔞ࡈ࡜࡟ࡑࡢ್ࡼࡾ㐠ື㔞ࡢప࠸Ᏹᐂ⥺㣕㊧ࢆ㝖࠸࡚ࢧࢪࢵࢱࡢᖜࢆࣉࣟࢵࢺ

ࡋࡓࠋᅗ 2 ࡟࠾࠸࡚ࠊ஝ᯈ඲㠃ࠊ඲ゅᗘࡢ㣕㊧࡛ィ⟬ࡋࡓࢧࢪࢵࢱࡢᖜࡀ㯮Ⅼࠊ6cm2 ෆࡢᒁᡤⓗ࡞࢔ࣛ࢖࣓ࣥࣥࢺᚋࡢ tanȟ<0.3 ࡢ㣕㊧࡟㝈ࡗ࡚ィ⟬ࡋࡓࢧࢪࢵࢱࡢᖜࡀ㟷Ⅼࠊከ㔜㟁☢ᩓ஘࡜఩⨨ ᐃㄗᕪࢆ⪃៖ࡋࡓࣔࣥࢸ࣭࢝ࣝࣟࢩ࣑࣮ࣗࣞࢩࣙࣥ(MC)ࡢ⤖ᯝࡀ㉥Ⅼ࡛࠶ࡿࠋᒁᡤⓗ࡞࢔ࣛ࢖࣓ࣥࣥࢺᚋࡢ
tanȟ<0.3 ࡢ㣕㊧࡟㝈ࢀࡤࠊࢧࢪࢵࢱࡢᖜࡣ MC ࡜࡯ࡰྜ࠺ࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
࢚࣐ࣝࢩ࣭ࣙࣥࢡࣛ࢘ࢻ࣭ࢳ࢙ࣥࣂ࣮㸦ECC㸧୰ࡢከ㔜㟁☢ᩓ஘ࢆ⏝࠸ࡓ㐠ື㔞ホ౯࡟ࡘ࠸࡚ࡣࠊ௒
ᖺᗘࡣ஝ᯈࡢ౑⏝ᯛᩘࡀከ࠸ሙྜ࡟ࡣẚ㍑ⓗ㧗࠸㐠ື㔞ࡲ࡛ᐃྍ⬟࡞ᗙᶆἲࡢ᳨ウࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊNINJA ᐇ㦂ࡢゎᯒ࡟࠾࠸࡚౑⏝ᯛᩘࡀ 15 ᯛ௨ୖࡢሙྜ࡟ࡣᗙᶆἲ࡛㐠ື㔞ࢆ ᐃࡍࡿࡇ࡜࡟࡞ࡗࡓࠋ
42ࡑࡢ㝿ࠊCERN-PS ࡢ 2, 4, 10GeV/c ࣁࢻࣟࣥࣅ࣮࣒ࢆ↷ᑕࡋࡓ OPERA ᆺ ECC ࡛ࡢ㣕㊧ࢹ࣮ࢱ࡟ᑐࡋࠊ
ྠࡌ᪉ἲ࡛㐠ື㔞ࢆ ᐃࡋࡓ࡜ࡇࢁࠊ࡯ࡰṇࡋ࠸್࡜࡞ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡑࡢ⤖ᯝࢆᅗ 3 ࡟♧ࡍࠋᅗ㸰㸸ࢧࢪࢵࢱࡢᖜ vs. 㐠ື㔞.

ᅗ㸯㸸Ᏹᐂ⥺↷ᑕᐇ㦂.

ᅗ㸱㸸ᗙᶆἲ࡛ ᐃࡉࢀࡓ 2, 4, 10GeV/c ࣁࢻࣟࣥࣅ࣮࣒ࡢ㐠ື㔞ࡢ㏫ᩘ (1/pș)ศᕸ.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ᯇᑿ཭࿴ ௚ NINJA ᐇ㦂ࡢ㕲 (&& ୰࡟࠾ࡅࡿࢽ࣮ࣗࢺࣜࣀ཯ᛂゎᯒࡢࡓࡵࡢᇶ♏ⓗ ᐃ᪥ᮏ≀⌮Ꮫ఍ ᖺ⛅Ꮨ኱఍ᒣᙧ኱Ꮫ ᖺ  ᭶  ᪥㹼 ᭶  ᪥࣭኱ᓥோ ௚NINJA ᐇ㦂࡟࠾ࡅࡿࢽ࣮ࣗࢺࣜࣀ㕲Ⲵ㟁࢝ࣞࣥࢺ཯ᛂࡢ◊✲᪥ᮏ≀⌮Ꮫ఍ ᖺ⛅Ꮨ኱఍ᒣᙧ኱Ꮫ ᖺ  ᭶  ᪥㹼 ᭶  ᪥
࣭T. Matsuo et al., Upgrading of momentum measurement techniques in emulsion-based particle detectors,
ICMaSS (International Conference on Materials and Systems for Sustainability) 2019,
Nagoya University, November 1-3, 2019.
࣭኱ᓥோ ௚NINJA ᐇ㦂࡟࠾ࡅࡿ *H9 㡿ᇦࡢࢽ࣮ࣗࢺࣜࣀ㕲Ⲵ㟁࢝ࣞࣥࢺ཯ᛂࡢ ᐃ⤖ᯝ᪥ᮏ≀⌮Ꮫ఍➨  ᅇᖺḟ኱఍ྡྂᒇ኱Ꮫ ᖺ  ᭶  ᪥㹼 ᭶  ᪥࣭㧗ᮌ⚽ᙲ ௚NINJA ᐇ㦂࡟࠾ࡅࡿ཯ࢽ࣮ࣗࢺࣜࣀ㕲Ⲵ㟁࢝ࣞࣥࢺ཯ᛂࡢ◊✲᪥ᮏ≀⌮Ꮫ఍➨  ᅇᖺḟ኱఍ྡྂᒇ኱Ꮫ ᖺ  ᭶  ᪥㹼 ᭶  ᪥࣭㭯ᒸ༓✑ ௚SHiP ᐇ㦂࡟ྥࡅࡓࢥࣥࣃࢡࢺ࢚࣐ࣝࢩࣙࣥࢫ࣌ࢡࢺ࣓࣮ࣟࢱ࣮ࡢ㛤Ⓨ᪥ᮏ≀⌮Ꮫ఍➨  ᅇᖺḟ኱఍ྡྂᒇ኱Ꮫ ᖺ  ᭶  ᪥㹼 ᭶  ᪥43ู⣬ᵝᘧ㸰㸫㸰He ࣉࣛࢬ࣐↷ᑕ࡟ࡼࡾ⏕ᡂࡍࡿࢱࣥࢢࢫࢸࣥࢼࣀᵓ㐀ࡢගゐ፹࡬ࡢᛂ⏝Application of nanostructured tungsten fabricated by helium plasma irradiation forphotocatalystsྜྷ⏣᭸Ꮚ࣭኱㜰ᕷ❧኱Ꮫ࣭」ྜඛ➃◊✲ᶵᵓ࣭ᩍᤵᲚ⏣ ಙ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ㏆ᖺ㸪⎔ቃ୰ࡢởᰁ≀㉁ࢆศゎࡍࡿගゐ፹ࡀᵝࠎ࡞ศ㔝࡬ᛂ⏝ࡉࢀ࡚࠸ࡿ㸬㓟໬ࢱࣥࢢࢫࢸࣥ㸦WO 3 㸧ࡣྍどග↷ᑕୗ࡛ാࡃගゐ፹࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࡀ㸪ẚ⾲㠃✚㸦1
m2/g㸧ࡀ௚ࡢගゐ፹࡟ẚ࡭࡚ᑠࡉࡃ㸪᭦࡟᭷ᶵ≀ศゎάᛶࡀప࠸࡜࠸࠺ၥ㢟Ⅼࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪W ᯈ࡟ He ࣉࣛࢬ࣐ࢆ↷ᑕࡋ࡚ᚓࡽࢀࡿᶞᯞ≧ࢼࣀᵓ㐀ࢆ㓟໬ࡉࡏ࡚㸪㧗⾲㠃✚࡛㓟໬㑏ඖຊࡢᙉ࠸ WO 3 ගゐ፹ࢆస〇ࡍࡿࡇ࡜ࢆ⪃࠼ࡓ㸬ලయⓗ࡟ࡣ㸪ᶞᯞ≧ࢼࣀᵓ㐀໬ࡋࡓ㔠ᒓ W ࡟ࢼࣀ WO 3 ࢆ᥋ྜࡋࡓ WO 3 /W ගゐ፹ࢆ๰〇ࡋ㸪⣸እ㹼㏆㉥እග↷ᑕୗ࡛᭷ᶵ≀ศゎ཯ᛂࢆᐇ㝿࡟㐍⾜ࡉࡏࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿ㸬ࣉࣛࢬ࣐↷ᑕࡸ㓟໬ฎ⌮᮲௳࡟ࡼࡿゐ፹⾲㠃ࡢᵓ㐀ኚ໬ࢆྛ✀ศᯒἲ࡟ࡼࡾヲ⣽࡟ㄪ࡭㸪ගゐ፹άᛶ࡜ග྾
཰≉ᛶ࡟ཬࡰࡍᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ┤⥺ᆺࢲ࢖ࣂ࣮ࢱࣉࣛࢬ࣐ᶍᨃヨ㦂⿦⨨ NAGDIS-ϩࢆ⏝࠸࡚ He ࣉࣛࢬ࣐㸦He㸩㸧ࢆධᑕ࢚ࢿࣝࢠ࣮65㹼80 eV ࡛ W ᯈ⾲㠃࡟ 51025㹼2.51026 /m2↷ᑕࡋ㸪ᶞᯞ≧ࢼࣀᵓ㐀ࢆᙧᡂࡉࡏࡓ㸬↷ᑕ᫬ࡢヨᩱ⾲㠃 ᗘࡣ 1300㹼1700 K ࡛࠶ࡗࡓ㸬 ࣉࣛࢬ࣐↷ᑕᚋࡢヨᩱࢆ኱Ẽ୰㓟໬ࡲࡓࡣຍ⇕ฎ⌮ࡋ㸪⾲㠃㓟໬๭ྜ 20㸣㸪35㸣㸪60㸣㸪100㸣ࡢ
ヨᩱࢆస〇ࡋࡓ㸬ࡇࢀࡽヨᩱ࡟ࡘ࠸࡚㸪ග↷ᑕୗ࡛ࡢ࣓ࢳࣞࣥࣈ࣮ࣝ㸦MB㸧⁐ᾮ㸦10
ȣmol/l, 2.0 ml㸧ศゎᐇ㦂࡟ࡼࡿගゐ፹άᛶホ౯ࢆ⾜ࡗࡓ㸬᭦࡟㸪ゐ፹ຎ໬ࡢཎᅉࢆゎ᫂ࡍࡿࡓࡵ࡟㸪MB ศゎ཯ᛂ๓ᚋ࡟࠾ࡅࡿヨᩱ⾲㠃ࡢ⤌ᡂẚ࣭㓟໬≧ែ࣭ᵓ㐀ࡢኚ໬ࢆ
XPSᐃ࠾ࡼࡧ SEM ほᐹ࡟ࡼࡾㄪ࡭ࡓ㸬 Fig.1 ࡟㸪Xe ࣛࣥࣉ࡟࢝ࢵࢺࣇ࢕ࣝࢱ࣮ࢆ⏝࠸࡚ 1.55 eV ௨ୗࡢ࢚ࢿࣝࢠ࣮ࡢගࢆ↷ᑕࡋࡓ᫬ࡢ MB ศゎᐇ㦂ࡢ⤖ᯝࢆ♧ࡍ㸬඲࡚ࡢヨᩱࡀග↷ᑕ࡟ᛂ⟅ࡋ㸪ศゎ཯ᛂࢆಁ㐍ࡍࡿࡇ࡜ࡀ
ศ࠿ࡗࡓ㸬ࡇࡇ࡛㸪⾲㠃㓟໬ 100㸣ࡢヨᩱࡀάᛶࢆ♧ࡋࡓࡇ࡜࠿ࡽ㸪ᑡ࡞ࡃ࡜ࡶ WO 3 ࡣάᛶࢧ࢖ࢺࡢ୍ࡘ࡜ゝ࠼ࡿ㸬୍᪉㸪W(0)ࡢ๭ྜࡀ
ከ࠸⾲㠃㓟໬ 20㸣ࡢヨᩱࡸ WO 3 ࡢ๭ྜࡀከ࠸
⾲㠃㓟໬ 100㸣ࡢヨᩱ࡟ẚ࡭࡚㸪⾲㠃㓟໬๭ྜࡀቑຍࡍࡿ࡯࡝཯ᛂ㏿ᗘࡀ኱ࡁࡃ࡞ࡾ㸪⾲㠃㓟

44

Fig.1 ⾲㠃㓟໬๭ྜࡢ␗࡞ࡿ
ྛヨᩱࡢ MB ศゎάᛶ໬ 60㸣ࡢヨᩱࡀ᭱ࡶ཯ᛂ㏿ᗘࡀ኱ࡁ࠿ࡗࡓ㸬ࡇࡢࡇ࡜࠿ࡽ㸪W(0)-WO 3 ⏺㠃ࡀࡶ࠺୍ࡘࡢάᛶࢧ࢖ࢺ࡛࠶ࡾ㸪WO 3 ࡟ẚ࡭࡚㧗άᛶ࡛࠶ࡿ࡜⪃࠼ࡓ㸬ࡲࡓ㸪WO 3 ࡢࣂࣥࢻࢠࣕࢵࣉ 2.5eV ࡼࡾ࢚ࢿࣝࢠ࣮ࡢప࠸ගࢆ↷ᑕࡋࡓ࡟ࡶ࠿࠿ࢃ
ࡽࡎ཯ᛂࡀ㐍⾜ࡋࡓࡇ࡜࠿ࡽ㸪ࡇࢀࡽࡢヨᩱࡣ㸪௚ࡢ༙ᑟయගゐ፹ࡢࡼ࠺࡟ࣂࣥࢻ㛫ࡢ㟁Ꮚບ㉳࡟ࡼࡗ࡚཯ᛂࡀ㐍⾜ࡋ࡚࠸ࡿ࡜ࡣ⪃࠼㞴࠸㸬He㸩ࣉࣛࢬ࣐↷ᑕ࡟ࡼࡗ࡚ࢱ
ࣥࢢࢫࢸࣥ࡟ᶞᯞ≧ࢼࣀᵓ㐀ࡀᙧᡂࡍࡿ࡜㯮Ⰽ໬ࡋ㸪⣸እ㹼㏆㉥እගࢆ྾཰ࡍࡿࡇ࡜
࠿ࡽ㸪ࢼࣀᵓ㐀໬ࡋࡓ W(0)ࢧ࢖ࢺࡀගࢆ྾཰ࡋ㸪⏕ࡌࡓບ㉳㟁Ꮚࡀ WO 3 ࡢఏᑟᖏ࡟
ὀධࡉࢀ࡚ MB ศゎ཯ᛂࡀ㐍⾜ࡋࡓྍ⬟ᛶࡀᣲࡆࡽࢀࡿ㸬ࡇࡢບ㉳㟁Ꮚࡢ⛣ືࡣ
W(0)-WO 3 ⏺㠃࡛ࡣຠ⋡ⓗ࡟㉳ࡇࡿࡓࡵ㸪MB ศゎ཯ᛂࡀ㏿ࡸ࠿࡟㉳ࡇࡿ࡜᥎ࡋࡓ㸬MB ཯ᛂᚋ

MB ཯ᛂ๓

Fig. 2 ⾲㠃㓟໬ 60㸣ヨᩱ࡟࠾ࡅࡿ MB ཯ᛂ๓ᚋࡢ SEM ീࡋ࠿ࡋ㸪⾲㠃㓟໬ 60㸣ࡢヨᩱࡣ 2 ᗘ┠ࡢ཯ᛂࢆ⾜࠺࡜㸪㸯ᗘ┠ࡢᐇ㦂࡟ẚ࡭࡚཯ᛂ㏿ᗘࡣⴭࡋࡃపୗࡋࡓ㸬Fig.2 ࡟㸪MB ศゎ཯ᛂ๓ᚋ࡟࠾ࡅࡿ⾲㠃㓟໬ 60㸣ヨᩱࡢ
SEM ീࢆ♧ࡍ㸬MB ศゎᚋࡢヨᩱ⾲㠃࡛ࡣᶞᯞ≧ᵓ㐀ࡢ⫧኱໬ࡲࡓࡣ௚ࡢ≀㉁ࡢ྾
╔ࡀ⏕ࡌ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡇࡢヨᩱࡢ XPS

ᐃ࠿ࡽࡣ㸪཯ᛂᚋ࡟ W(0)ࢧ࢖ࢺࡢ

㓟໬࡜Ⅳ⣲ࡢቑຍࡀ᳨ฟࡉࢀࡓ㸬ࡇࢀࡽࡢ⤖ᯝ࠿ࡽ㸪MB ࡀ W(0)-WO 3 ⏺㠃࡟໬Ꮫ྾╔ࡋ࡚ḟࡢ཯ᛂࢆ㜼ᐖࡋࡓࡾ㸪W(0)ࢧ࢖ࢺࡀ㓟໬ࡉࢀࡓࡇ࡜࡛ W(0)-WO 3 ⏺㠃ࡢ㠃✚ࡀῶᑡࡍࡿࡇ࡜ࡀ᥎ᐹࡉࢀࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭Y. Tomita, S. Kajita, E. Yasunaga, T. Yoshida, N. Ohno, H. Tanaka, Fabrication of ananostructured TiO 2 photocatalyst using He plasma-irradiated tungsten and ethylene gas
decomposition, Jpn. J. Appl. Phys., 58 (2019) SEEEG01.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
࣭T. Yoshida, K. Komori, M. Yamamoto, C. Tsukada, S. Ogawa, S. Kajita, N. Ohno and S. Yagi,
Study on nanostructured tungsten photocatalysts fabricated by helium plasma irradiation,
International Conference on Materials and Systems for Sustainability, Nagoya University, Nov.
1-3, 2019.
㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ

45ู⣬ᵝᘧ㸰㸫㸰㠀᥋ゐࣉࣛࢬ࣐⏕ᡂ㐣⛬࡟࠾ࡅࡿ୰ᛶཎᏊ ᗘࡢ✵㛫ኚ໬
Spatial variation of neutral atom temperature in detached plasma generation processⲨᕳග฼࣭᪥ᮏ኱Ꮫ࣭⏕⏘ᕤᏛ㒊࣭ᩍᤵ㔠᳃⿱ஓ࣭᪥ᮏ኱Ꮫ኱Ꮫ㝔࣭⏕⏘ᕤᏛ◊✲⛉࣭M2బࠎᮌ♸㍜࣭᪥ᮏ኱Ꮫ኱Ꮫ㝔࣭⏕⏘ᕤᏛ◊✲⛉࣭M1ᯇ⏣ᝆ࣭᪥ᮏ኱Ꮫ኱Ꮫ㝔࣭⏕⏘ᕤᏛ◊✲⛉࣭M1⏣୰ᏹᙪ࣭ྡྂᒇ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ຓᩍ኱㔝ဴ㟹࣭ྡྂᒇ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ᩍᤵᲚ⏣ಙ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ 㠀᥋ゐࣉࣛࢬ࣐⏕ᡂ࡟ࡼࡿࢲ࢖ࣂ࣮ࢱᯈ࡬ࡢ⇕㍺㏦ไᚚࡣ㸪᰾⼥ྜⓎ㟁ࡢ᭱㔜せㄢ㢟ࡢ୍ࡘ࡛࠶ࡿ㸬㠀᥋ゐࣉࣛࢬ࣐ࡣ㸪㟁㞳㐍⾜ࣉࣛࢬ࣐୰ࡢ㟁Ꮚ࠾ࡼࡧ࢖࢜ࣥࡀᣑᩓࡋ࡞
ࡀࡽ୰ᛶཎᏊ࣭ศᏊ࡜┦஫స⏝ࡍࡿࡇ࡜࡛෭༷ࡉࢀ㸪෌⤖ྜ᩿㠃✚ࡀቑຍࡍࡿࡇ࡜࡛⏕ᡂࡉࢀࡿ㸬ᚑࡗ࡚㸪㠀᥋ゐࣉࣛࢬ࣐ࡢ⏕ᡂ࣓࢝ࢽࢬ࣒ࢆ⌮ゎࡋไᚚࡍࡿ࡟ࡣ㸪㟁Ꮚ࣭࢖࣭࢜ࣥ୰ᛶཎᏊࡢ ᗘࡢ✵㛫ኚ໬ࢆ᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࡀ୙ྍḞ࡜࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࢲ࢖ࣂ࣮ࢱࣉࣛࢬ࣐ᶍᨃᐇ㦂⿦⨨ NAGDIS-II㸦ྡྂᒇ኱Ꮫ㸧ࢆ⏝࠸ࡓ㠀᥋ゐࣉࣛࢬ࣐⏕ᡂ㐣⛬ࡢ⌮ゎࢆ┠ᣦࡋ㸪ࣉࣛࢬ࣐⏕ᡂ㒊࠿ࡽ㠀᥋ゐࣉࣛࢬ࣐⏕ᡂ㒊࡟࠿ࡅ࡚ࡢ୰ᛶཎᏊ
ᗘࡢ✵㛫ኚ໬ࢆࢻࢵࣉ࣮ࣛศගἲ࡟ࡼࡗ࡚᫂ࡽ࠿࡟ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 NAGDIS-II ࡛ࡣ㸪ᨺ㟁㒊࡛⏕ᡂࡉࢀࡓࣉࣛࢬ࣐ࡀࣉࣛࢬ࣐ࢸࢫࢺ㒊ࢆᣑᩓࡋ࡞ࡀࡽ୰
ᛶཎᏊ࡜ࡢ┦஫స⏝࡟ࡼࡾ෭༷ࡉࢀࡿࡇ࡜࡛㸪㟁㞳㐍⾜ࣉࣛࢬ࣐࠿ࡽ෌⤖ྜࣉࣛࢬ࣐࡬
࡜㑄⛣ࡋ࡚࠸ࡿ㸬ࡇࢀࡲ࡛ࡢඹྠ◊✲࡟ࡼࡾ㸪ศᕸᖐ㑏ᆺ㸦DFB㸧࣮ࣞࢨ࣮ࢆ⏝࠸ࡓἼ㛗ྍኚࢲ࢖࣮࢜ࢻ࣮ࣞࢨ࣮྾཰ศග㸦TDLAS㸧
࣒࣊ࣜ࢘ཎᏊࡢ ᗘ࡜ᐦᗘࡢᡤ࡛ྠ᫬ィᐃ⣔ࢆ㛤Ⓨࡋ㸪ࣉࣛࢬ࣐୰ࡢ‽Ᏻᐃᐃἲࢆ☜❧ࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ࣉࣛࢬ࣐ࢸࢫࢺ㒊ࡢ」ᩘ⟠ࡍࡿࡓࡵࡢᐃ⣔ࢆᩚഛࡋࡓ㸬௒ᖺᗘࡣ㸪ᅗ㸯࡟♧ࡋࡓࣉࣛࢬ࣐ࢸࢫࢺ㒊ࡢୖὶ࠾ࡼ
ࡧୗὶ࡟࠾࠸࡚㸪TDLAS࡟ࡼࡿ‽Ᏻᐃ࣒࣊ࣜ࢘ཎ
Ꮚࡢ

ᗘ࣭ᐦᗘ

ᐃ࡟ຍ

࠼࡚㸪࣮ࣞࢨ࣮ࢺ࣒ࢯࣥ
ᩓ஘㸦LTS㸧࡟ࡼࡿ㟁Ꮚᗘ࣭ᐦᗘᐃࢆ⾜ࡗࡓ㸬

ᅗ㸯ᐇ㦂⿦⨨㸬46

ᅗ 2 ࡟ࣉࣛࢬ࣐ࢸࢫࢺ㒊ࡢୗὶ࡛ほࡉࢀࡓࡿ‽Ᏻᐃ࣒࣊ࣜ࢘ཎᏊࡢ
ᐦᗘ࠾ࡼࡧ㟁Ꮚᐦᗘ࣭ᗘ࣭ᗘࡢ࢞ࢫᅽ౫

Ꮡᛶࢆ♧ࡍ㸬ᅗ 2(a)ࡼࡾ㸪࢞ࢫᅽຊࡀ
7mTorr ㏆ഐࡼࡾ㧗ᅽຊഃ࡛‽Ᏻᐃ࣒࣊ࣜ࢘ཎᏊࡢᗘࡀᛴ⃭࡟పୗࡍࡿ࡜࡜

ࡶ࡟㸪ᐦᗘࡀୖ᪼ࡋ࡚࠸ࡿᵝᏊࡀ☜ㄆࡉࢀࡓ㸬㟁Ꮚ࡟ࡘ࠸࡚ࡣ㸪7mTorr ㏆ഐ࡛ᗘ㸪ᐦᗘ࡜ࡶ࡟኱ࡁࡃపୗࡋ࡚࠸

ࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪࢞ࢫᅽࡀ 7mTorr ㏆
ഐ௨ୖ࡛ࡣ㸪㟁Ꮚᗘࡢపୗ࡟కࡗ࡚

෌⤖ྜ᩿㠃✚ࡀቑຍࡋ㸪෌⤖ྜࣉࣛࢬ࣐≧ែ࡜࡞ࡗ࡚࠾ࡾ㸪㟁Ꮚ࡜࢖࢜ࣥࡢ
෌⤖ྜ㐣⛬࡟ࡼࡾ‽Ᏻᐃ࣒࣊ࣜ࢘ཎᏊ
ࡀ⏕ᡂࡉࢀ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿ㸬 ෌⤖ྜࣉࣛࢬ࣐୰࡟ࣉ࣮ࣟࣈࢆᤄධࡋ࢖࢜
ࣥ㣬࿴㟁ὶࡢ

ᐃ࡜ TDLAS ࡟ࡼࡿ‽Ᏻᐃ࣒࣊ࣜ࢘ཎᏊ

ᅗ 2 (a) ‽Ᏻᐃ He ཎᏊ ᗘ࣭ᐦᗘ (b) 㟁Ꮚᐦᗘ࣭ ᗘ ࡢ࢞ࢫᅽ౫Ꮡᛶ㸬ᐃࢆྠ᫬࡟⾜࠸㸪㻣࢖࢜ࣥ㣬࿴㟁ὶࡢቑຍࢱ࢖࣑ࣥࢢ࡜ῶ

㻢ᑡࢱ࢖࣑ࣥࢢ࡟࠾ࡅࡿ‽Ᏻᐃ࣒࣊ࣜ࢘

㻡ཎᏊࡢࢻࢵࣉ࣮ࣛࢫ࣌ࢡࢺࣝࢆほ㻠ࡋࡓ㸦ᅗ 3㸧㸬ヲ⣽࡞᳨ウࡣ௒ᚋࡢㄢ㢟ࡔࡀ㸪㻟࢖࢜ࣥ㣬࿴㟁ὶࡢኚ໬࡟కࡗ࡚‽Ᏻᐃ࣒࣊ࣜ࢘ཎᏊࡢ

㻗㻙㻞ᗘࡀኚ໬ࡋ࡚࠸ࡿࡇ㻝࡜ࡀほ ࡉࢀࡓ㸬㻜㻙㻝࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㻙㻠ᏹᙪ㸪Ლ⏣ ಙ㸪኱㔝ဴ㟹㸪Ⲩᕳග฼㸪

㻜

㻞

㻠

Detuning [GHz]㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ᯇ⏣ ᝆ㸪㔠᳃⿱ஓ㸪㮚㔝኱㍤㸪⏣୰㻙㻞

ᅗ 3 ࣉࣛࢬ࣐୰ࡢᦂື࡟క࠺྾཰ࢫ࣌ࢡࢺ
ࣝࡢኚ໬㸬᮲௳௜ࡁᖹᆒἲࢆ⏝࠸ࡓ྾཰ศගἲ
࡟ࡼࡿ෌⤖ྜࣉࣛࢬ࣐୰ࡢᦂືィ , ࣉࣛࢬ࣐࣭᰾⼥ྜᏛ఍ ➨ 36 ᅇᖺ఍, ୰㒊኱Ꮫ㸦᫓᪥஭࢟ࣕࣥࣃࢫ㸧
㸪2019 ᖺ 11 ᭶ 29 ᪥-12 ᭶ 2 ᪥㸬࣭ ᯇ⏣ᝆ㸪㔠᳃⿱ஓ㸪㮚㔝኱㍤㸪⏣୰ᏹᙪ㸪Ლ⏣ಙ㸪኱㔝ဴ㟹㸪Ⲩᕳග฼㸪ࠕࣛࣥࢢ࣑ࣗ࢔ࣉ࣮ࣟࣈἲ࡜࣮ࣞࢨ࣮྾཰ศගἲࢆ⏝࠸ࡓࣉࣛࢬ࣐ᦂື

ᐃࠖ㸪ࣉࣛࢬ࣐⛉Ꮫࡢࣇࣟࣥࢸ࢕࢔ 2019 ◊✲఍, ᰾⼥ྜ⛉Ꮫ◊✲ᡤ, 2019 ᖺ 8 ᭶ 7-9 ᪥㸬࣭ బࠎᮌభ㍜㸪㔠᳃⿱ஓ㸪㮚㔝኱㍤㸪Ლ⏣ಙ㸪⏣୰ᏹᙪ㸪኱㔝ဴ㟹㸪Ⲩᕳග฼㸪ࠕ྾཰ศගࢆ⏝࠸ࡓ㠀᥋ゐࣉࣛࢬ࣐୰‽ᏳᐃཎᏊࡢᚄ᪉ྥ࠾ࡼࡧ㍈᪉ྥศᕸ ᐃࠖ㸪ࣉࣛࢬ࣐⛉Ꮫࡢࣇࣟࣥࢸ࢕࢔ 2019 ◊✲఍, ᰾⼥ྜ⛉Ꮫ◊✲ᡤ, 2019 ᖺ 8 ᭶ 7-9 ᪥㸬47ู⣬ᵝᘧ㸰㸫㸰◳ϱ⥺ග㟁Ꮚศගࢆ⏝࠸ࡓࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡢᇙࡶࢀࡓ⏺㠃࡟࠾ࡅࡿ☢໬ศᕸィ ᢏ⾡㛤Ⓨ
Development of measuring techniques for magnetization distribution at buried interfacein spintronics materials using hard X-ray photoelectron spectroscopyಖ஭᫭࣭බ┈㈈ᅋἲே㧗㍤ᗘග⛉Ꮫ◊✲ࢭࣥࢱ࣮࣭
ศග࣭࢖࣓࣮ࢪࣥࢢ᥎㐍ᐊ࣭◊✲ဨụỌⱥྖ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ㝃ᒓ 㧗ᗘィ ᢏ⾡ᐇ㊶ࢭࣥࢱ࣮࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡣࠊ㧗ᐦᗘグ㘓፹యࡸపᾘ㈝㟁ຊࠊ࠿ࡘࠊ㧗㏿ࠊ኱ᐜ㔞࡞ḟୡ௦࣓ࣔࣜ➼࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠾ࡾࠊḟୡ௦ IT ᶵჾࡢᇶ┙࡜࡞ࡿᮦᩱ࡛࠶ࡿࠋࡇࡢ
ࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࢆ⏝࠸ࡓḟୡ௦ࢹࣂ࢖ࢫࡣࠊ㠉᪂ⓗ࡞┬࢚ࢿࣝࢠ࣮໬ࡢྍ⬟ᛶࢆ⛎ࡵ࡚࠸ࡿࠋ౛࠼ࡤࠊ⌧ᅾ౑⏝ࡉࢀ࡚࠸ࡿㄽ⌮㞟✚ᅇ㊰୰ࡢ࣓ࣔࣜࡣࠊࢹ࣮ࢱࢆಖᣢࡍ
ࡿࡓࡵ࡟ᖖ᫬㟁Ẽ౪⤥ࡀᚲせ࡛࠶ࡿࡀࠊࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࢆ⏝࠸ࡓḟୡ௦࣓࡛ࣔࣜ
ࡣࠊ㟁Ꮚࢫࣆࣥ࡟ࢹ࣮ࢱࢆಖᣢࡉࡏࡿࡓࡵࠊᚅᶵ㟁ຊࢆᚲせ࡜ࡋ࡞࠸ࠋࡋࡓࡀࡗ࡚ࠊࢫ
ࣆࣥࢺࣟࢽࢡࢫᮦᩱࢆ⏝࠸ࡓ࣓ࣔࣜ࡟⨨ࡁ᥮ࢃࢀࡤࠊ㠉᪂ⓗ࡞┬࢚ࢿࣝࢠ࣮࡟ࡘ࡞ࡀࡿࠋ
ࡑࡢࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱ࡟ࡣከᵝ࡞☢ᛶከᒙ⭷ࡀ⏝࠸ࡽࢀ࡚࠾ࡾࠊࡑࡢ☢Ẽ≉ᛶࢆᨭ㓄ࡍࡿࡢࡣࠊ☢ᛶᒙ㏆ഐࡢ☢Ẽ࣮࣓ࣔࣥࢺ࡛࠶ࡿࠋࡋ࠿ࡋࠊ⌧≧ࡑࡢ⌮ゎࡣ༑ศ࡛࡞
࠸ࠋࡇࢀࡣࠊᇙࡶࢀࡓ㟁Ꮚ࣭☢Ẽ≧ែࢆゎᯒ࡛ࡁࡿᐇ㦂ᡭἲࡀ☜❧ࡉࢀ࡚࠸࡞࠸ࡇ࡜ࡀ୺せᅉ࡛࠶ࡿࠋࡇࢀࢆゎỴࡍࡿᡭἲࡢ 1 ࡘࡀࠊHAXPES ࡀᣢࡘ≉ᚩ࡛࠶ࡿ㧗࠸ࣂࣝࢡᩄ
ឤᛶ [1]ࢆ⏕࠿ࡋࡓ MCD-HAXPES㸦HAXPES ࢫ࣌ࢡࢺࣝࡢ☢Ẽ෇஧Ⰽᛶ㸧ィ ࡛࠶ࡿࠋࡑࡢ≉ᚩࡣ☢ᛶከᒙ⭷◊✲࡟࠾࠸࡚ᗈࡃ⏝࠸ࡽࢀ࡚࠸ࡿ㌾ X ⥺྾཰ MCD ィ࡟ẚ࡭ࠊ᳨ฟ῝ࡉࡀ 1 ᱆኱ࡁ࠸⣙ 20 nm ࡛࠶ࡿࡇ࡜࡛࠶ࡿࠋࡘࡲࡾࠊMCD-HAXPES ࢆ⏝࠸ࡿ࡜㓟໬ಖㆤᒙ➼࡟ᇙࡶࢀࡓ⏺㠃ࡢ☢ᛶࢆㄪ࡭ࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾ[2]ࠊᐇࢹࣂ࢖ࢫᵓᡂ࡟
㏆࠸ᮦᩱࢆゎᯒ࡛ࡁࡿࠋࡉࡽ࡟ࠊ໬Ꮫࢩࣇࢺࡸ౯ᩘ≧ែࡢ᳨ฟ࡟ᩄឤ࡛࠶ࡾࠊ໬Ꮫ⤖ྜ≧ែ࡜☢ᛶࢆ஫࠸࡟㛵㐃௜ࡅࡓゎᯒࡀྍ⬟࡛࠶ࡿ࡜࠸࠺≉ᚩࡶ᭷ࡍࡿࠋ
ࡋ࠿ࡋࠊ⌧≧ࠊMCD-HAXPES ィ ࡢ㐺⏝ࡣࠊ඲☢໬ࡀᑠࡉࡃࠊヨᩱ௜㏆࠿ࡽⓎ⏕ࡍࡿ₃ὤ☢ሙࡀᑠࡉ࠸ⷧ⭷ヨᩱ࡟㝈ᐃࡉࢀ࡚࠸ࡿࠋ୍᪉ࠊ₃ὤ☢ሙࡀ኱ࡁ࠸࡜ග㟁Ꮚࡀ࣮ࣟࣞࣥ
ࢶ೫ྥࢆཷࡅࠊィ ⮬యࡀᅔ㞴࡜࡞ࡿࠋࡇࢀ࡟ᑐࡋࠊᡃࠎࡣ HAXPES ࡢ㧗࠸ග㟁Ꮚ㐠ື࢚ࢿࣝࢠ࣮ࡀ฼⏝ࡋࠊࡉࡽ࡟ヨᩱ࿘㎶ࡢ₃ὤ☢ሙࢆᴟຊపῶࡍࡿࡇ࡜࡛ࡇࡢᅔ㞴ࢆඞ᭹࡛ࡁ
ࡿ࡜⪃࠼ࠊእ㒊☢ሙୗ࡛ࡢ HAXPES ィ ᢏ⾡ࡢ㛤Ⓨࢆ⾜ࡗ࡚࠸ࡿࠋ᫖ᖺࡲ࡛࡟ࠊࢿ࢜ࢪ࣒
☢▼ࢆ⏝࠸ࡓ 0.1 T ᅛᐃ☢ሙୗ࡛ࡢィ ࡟ᡂຌࡋࡓࠋࡋ࠿ࡋࠊࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱࡢゎᯒ࡛ࡣࣄࢫࢸࣜࢩࢫ᮲௳ୗ࡛ࡢィࡀᚲ㡲࡛࠶ࡾࠊྍኚ☢ሙୗ࡛ࡢィ

࠶ࡗࡓࠋ

48

ᢏ⾡ࡢ☜❧ࡀᚲせ࡛㸰㸬◊✲ෆᐜ࡜ᡂᯝ
௒ᖺᗘࡣࠊᑠᆺ㟁☢▼ࢆ⏝࠸ࡓ☢ሙྍኚ࡛࠶ࡾ࡞ࡀࡽࠊ₃ὤ☢ሙࡢᙳ㡪ࢆᴟຊᢚ࠼ࡿ
ᶵᵓ㛤Ⓨࢆ⾜ࡗࡓࠋࡑࡢᶵᵓࡢᴫᛕᅗࢆᅗ 1 ࡟♧ࡍࠋヨᩱ╔☢࡟㟁☢▼ࢆ⏝࠸ࡿ࡜₃ὤ
☢ሙࡀⓎ⏕ࡋࡸࡍ࠸ࠋࡑࡇ࡛ࠊヨᩱ╔☢⏝㟁☢▼࡛Ⓨ⏕ࡋࡓ₃ὤ☢ሙࡀග㟁Ꮚ࡟୚࠼ࡿ
ᙳ㡪ࢆ࢟ࣕࣥࢭࣝࡍࡿ⿵ṇ㟁☢▼ࢆ᭷ࡍࡿᶵᵓࢆ⪃࠼ࡓࠋࡲࡓࠊSPring-8 ࡢ HAXPESィ࡛౑⏝ࡋ࡚࠸ࡿỗ⏝ヨᩱ࣍ࣝࢲ࡟ᦚ㍕ྍ⬟࡞ࠊ㟁☢▼ࡸヨᩱࠊ☢Ẽᅇ㊰ࢆ᭷ࡍࡿ㉸ᑠᆺᶵᵓ࡜ࡍࡿࡇ࡜࡛ࠊヨᩱධࢀ᭰࠼ࢆᐜ᫆࡟ࡍࡿࡇ࡜ࢆᅗࡗࡓࠋ⌧ᅾࠊᮏຓᡂ㔠࡛㉎ධࡋࡓ㟁☢ሙ࣭Ⲵ㟁⢏Ꮚ㐠ືゎᯒࢯࣇࢺ࢙࢘࢔ࢆ⏝࠸࡚ࠊୖグ☢ሙ༳ຍࢩࢫࢸ࣒タィࢆ⥆ࡅ࡚࠸ࡿࠋࡑࡢ୍᪉࡛ࠊࢿ࢜ࢪ࣒☢▼ࢆ⏝࠸ࡓᅛᐃ☢ሙୗࡢィ ࡛ࡣࠊග㟁Ꮚ࢔ࢼࣛ࢖ࢨ࣮ࡢ⿵ṇ㟁ሙࢆ฼⏝ࡍࡿࡇ࡜࡛ࠊ0.2 T ୗ࡛ࡢィ࡟ᡂຌࡋࡓࠋࡲࡓࠊࡇࡢ☢ሙ༳ຍࢩࢫࢸ࣒ࢆ⏝࠸ࡓඹ㬆 HAXPES ィ ࢆヨ⾜ࡋࡓ(ᡂᯝබ⾲㸯)ࠋࡇࡢඹ㬆 HAXPES ィࡣࠊᚑ᮶ᅛᐃධᑕ࢚ࢿࣝࢠ࣮࡟㝈ᐃࡉࢀ࡚ࡁࡓ HAXPES ࡟ᑐࡋࠊඖ⣲྾཰➃㏆ഐ࡛࢚ࢿࣝࢠ࣮ࢆᤲᘬࡋ࡞ࡀࡽ HAXPES ィ ࢆ⾜࠺ࡇ࡜࡛ࠊඖ⣲㑅ᢥᛶࡸ㌶㐨㑅ᢥᛶࢆࡼࡾᙉ໬ࡋࡓ HAXPES ゎᯒࢆᐇ⌧ࡍࡿࡶࡢ࡛࠶ࡿࠋࡇࡢඹ㬆 HAXPES ࡢ MCD ィࢆ⾜࠺ࡇ࡜࡛ࠊ㏻ᖖࡢ MCD-HAXPES ࡼࡾࡶヲ⣽࡞☢Ẽ࣮࣓ࣔࣥࢺゎᯒࡀྍ⬟࡟࡞ࡿࡓࡵࠊ
ୖグ㛤Ⓨ࡜୪⾜ࡋ㛤Ⓨࢆ⾜ࡗ࡚࠸ࡿࠋ
௒ᚋࡶ㛤Ⓨࢆ⥆ࡅࠊᐇࢹࣂ࢖ࢫ࡬ࡢ
ᛂ⏝ᐇ⌧࡟ᚲせ࡞せ⣲ᢏ⾡ࢆ☜❧ࡋࠊ㧗࠸ỗ⏝ᛶࢆᅗࡿࠋᮏィ ᢏ⾡ࡣࠊ࠶ࡽࡺࡿࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱ୰ࡢ㟁Ꮚ≧ែ࣭☢໬ศᕸゎᯒ࡟࠾࠸࡚ᙉຊ࡞
ࢶ࣮ࣝ࡜࡞ࡾࠊࢫࣆࣥࢺࣟࢽࢡࢫᮦᩱ
ࡢ≀ᛶゎ᫂ࠊࡦ࠸࡚ࡣࠊIT ᶵჾࢹࣂ࢖
ࢫࡢపᾘ㈝㟁ຊ໬࡟኱ࡁࡃ㈉⊩ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀࡿࠋ
ཧ⪃ᩥ⊩[1] E. Ikenaga et al., Synchrotron Radiation News 31, 10 (2018).
[2] G. H. Fecher et al., Jounal of Phyics D: Applied Physics 40, 1576 (2007).

㸱㸬◊✲ᡂᯝࡢබ⾲≧ἣ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
1. A. Yasui, N. Kawamura, E. Ikenaga, M. Mizumaki, S. Tsutsui, and K. Mimura, "Advancesof resonant HAXPES in BL09XU of SPring-8 and its applications", 8th International
Conference on Hard X-ray Photoelectron Spectroscopy, Paris, France, June 2-7 (2019).
2. A. Yasui and E. Ikenaga, “Development of Measurement Technique for Magnetization
Distribution at Buried Interface in Spintronics Materials using Hard X-ray Photoelectron
Spectroscopy”, International Conference on Materials and Systems for Sustainability 2019,
Nagoya, November 3-4 (2019).

49

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p 1. ¦k`»aÈ¥¡p[1] S. Toyoda et al., Surf. Interface Anal. 40, 1619 (2008). [2] K. Horiba, Y. Nakamura, N.
Nagamura, ST et al., Rev. Sci. Instrum 82, 113701(2011). [3] S. Toyoda et al., J. Appl. Phys.
120, 085306 (2016). [4] Î­W<C.7¯Û;3AM6O³¸X(2019)

50

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51ู⣬ᵝᘧ㸰㸫㸰Ᏹᐂ⥺ࢆ⏝࠸ࡓⅆᒣࡢ CT ᧜ീ
CT imaging of volcanoes by using cosmic-rayᐑᮏ ᡂᝅ࣭ᮾி኱Ꮫ࣭ᆅ㟈◊✲ᡤ࣭ຓᩍ᳃ᓥ 㑥༤࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲⛉࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ 㟼ᒸ┴ఀᮾᕷ࡟఩⨨ࡍࡿ኱ᐊᒣ㸦ࢫࢥࣜ࢔ୣ࣭༢ᡂⅆᒣ㸧ࡢ CT ᧜ീࡢᐇドほ ࢆ⾜࠺ィ⏬ࢆ❧࡚࡚࠸ࡿࠋᒣࢆᅖࡴࡼ࠺࡟ཎᏊ᰾஝ᯈ᳨ฟჾࢆᒣ㯄࡟༑ᩘⅬタ⨨ࡋ㸪་⒪࡟
࠾ࡅࡿ X ⥺ CT ᧜ീࡢᵝ࡟࠶ࡽࡺࡿ᪉఩࠿ࡽᒣయࢆ㈏㏻ࡋῶ⾶ࡋࡓ࣑࣮ࣗ࢜ࣥࣇࣛࢵࢡࢫࢆほ ࡍࡿࡇ࡜࡛㸪ⅆᒣᒣయෆ㒊ࡢᐦᗘᵓ㐀ࢆ୕ḟඖⓗ࡟᫂ࡽ࠿࡟ࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
I 㸧2018 ᖺ᫓࡟ᅇ཰ࡋࡓ㸱⟠ᡤࡢཎᏊ᰾஝ᯈほ ჾ(ྛࠎࡢ᭷ຠ㠃✚ 0.01 ᖹ⡿)ࡢゎᯒࢆ᭦࡟㐍ࡵࡓࠋ࣐ࢢ࣐ⓎἻ࡟ࡼࡗ࡚ᄇⅆ᤼ฟ≀ෆ㒊࡟ᙧᡂࡉࢀࡓ✵㛫࡜㸪᤼ฟ≀ྠኈࡀ㏆᥋ࡍࡿ࡜ࡁ࡟࡛ࡁࡿ✵㝽࡞࡝඲࡚ྵࡵࡓᖹᆒࣂࣝࢡᐦᗘࢆࡑࢀࡒࢀࡢ᪉ྥࡈ࡜࡟ồࡵࡓࠋII 㸧2018 ᖺ෤࡟タ⨨ࡋࡓ 8 ⟠ᡤࡢ஝ᯈほ ჾ(ྛࠎࡢ᭷ຠ㠃✚ 0.02 ᖹ⡿)ࢆ 2019 ᖺ᫓࡟ᅇ཰ࡋ㸪⌧ീࢆ⾜ࡗࡓࠋࡑࡢᚋ㧗㏿⮬ື㣕㊧ㄞࡳྲྀࡾ⿦⨨ HTS ࡟ࡼࡾ⏬ീࢹ࣮ࢱࢆࢹࢪࢱࣝ
໬ࡋ࡚࣑࣮ࣗ࢜ࣥࡢ㣕㊧ࢆ෌ᵓᡂࡋࡓࠋ

III 㸧2019 ᖺ⛅࡟᭷ຠ㠃✚ࢆ㸱ಸ࡟ቑࡸࡋࡓ஝ᯈほ ჾ(ྛࠎࡢ᭷ຠ㠃✚ 0.07 ᖹ⡿)ࢆ 8 ⟠ᡤ᪂ࡓ࡟タ⨨ࡋࡓࠋ2020 ᖺ 4᭶࡟ᅇ཰ணᐃ࡛࠶ࡿࠋ

I 㸧࡟ࡘ࠸࡚
ᅗ㸯ࡢ㉥࠸୸࡛♧ࡉࢀࡿᆅⅬ࡟タ⨨ࡋࡓཎᏊ᰾஝ᯈほჾ࡟ࡘ࠸࡚㸪

Forward/Backward ẚࢆồࡵࡿࡇ࡜࡛
࣑࣮ࣗ࢜ࣥࡢῶ⾶⋡ࢆほ ࡋ㸪ྛࠎᖹᆒᐦᗘࢆồࡵࡓࠋࡑࡢ㝿㸪ᅽᐦຠᯝ࡛
῝ࡉ᪉ྥ࡟ᐦᗘࡢኚ໬ࡀ⌧ࢀࡿ࠿࡝࠺࠿᳨ドࡋࡓࠋ⤖ᯝࢆᅗ㸰࡟♧ࡍࠋ࠸ਦ̏ʁ୉࣪ࢃबวஏਦͳɾϝϣʖΨϱ؏଎‫ح‬͹Ғ஖‫ܐؖ‬ɽ ೧ॡɾ ೧ॡͶյफ͠Ηͪ΍͹ͺͨΗͩΗ੼͏‫؛‬ɾ੪͏ ; ϜʖέͲࣖ͠Ηͱ͏Ζɽࡎࢀࡢ᪉ྥ࡛ࡶ῝ࡉ࡟ࡼࡿᐦᗘࡢኚ໬
ࡣ᳨ฟࡉࢀ࡞࠿ࡗࡓࠋ୍᪉࡛༡ᮾ࣭໭
໭ᮾࡢᖹᆒᐦᗘ࡜㸪すഃࡢᖹᆒᐦᗘ࡛

᝿ᐃࡉࢀࡿㄗᕪ௨ୖࡢᐦᗘᕪࡀᚓࡽࢀࡓࠋ⌧ᅾࡇࡢᐦᗘᕪࡣఱ࡟㉳ᅉࡍࡿ࠿᳨ド୰࡛࠶ࡿࠋලయⓗ࡟ࡣ୺࡟ḟࡢ㸰㏻ࡾࡢྍ⬟ᛶࢆ᳨ドࡋ࡚࠸ࡿ㸸A)ぢ࡚࠸ࡿ❧యⓗ࡞㡿ᇦࡀ㸱

52᪉ྥࡈ࡜࡟␗࡞ࡿࡓࡵ㸪⁐ᒾὶࡀすഃ࡟ὶࢀฟࡓ஦㇟࡟ࡼࡿᐦᗘቑຍࢆ࡜ࡽ࠼ࡓྍ⬟ᛶ㸪B)Ᏹᐂ⥺ࡢᮾすຠᯝࡢᙳ㡪ࡀ㧗࢚ࢿࣝࢠ࣮࣑࣮ࣗ࢜ࣥ࡟ࡶᙳ㡪ࡋ࡚࠸ࡿྍ⬟ᛶࠋࡓࡔࡋ
㐠ື࢚ࢿࣝࢠ࣮1GeV ࢆ㉸࠼ࡿ࣑࣮ࣗ࢜ࣥࡀᆅ☢Ẽ࡟ࡼࡗ࡚᭤ࡆࡽࢀࡿ࡜ࡁࡢ᭤⋡༙ᚄࡣ 50km ௨ୖ࡟࡞ࡿࠋ

ਦ̐ʁ ೧Ͷյफ͠Ηͪ̑๏޴͖Δ͹؏଎݃Վɽ৏ஊ͹ਦͺ͖ࠪΔೈ౨ɾ੤ɾ๼๼౨Ͷઅ஖ͪ͢Ғ஖ͳ๏޴Νࣖ͢ɾ஦ஊͺ஦ৼ๏޴ͶԌͮͪஏ‫ܙ‬இ໚ͳϝϣʖΨϱ͹‫ܨ‬࿑͗ࣖ͠Ηͱ͏ΖɽԾஊͺ஦ஊͶࣖ͠ΗཱིͪରֱͶ͕͜Ζฑ‫ౕືۋ‬஍ͳϝϣʖΨϱ౹‫਼ܯ‬ͶΓΖ‫ࣖ͗ࠫ͠ޣ‬Ηͱ͏ΖɽII) ࡟ࡘ࠸࡚㸪ᅇ཰ࡉࢀࡓ 8 ⟠ᡤࡢ஝ᯈࢆྡྂᒇ኱Ꮫ࡟࡚⌧ീࡋࡓࠋࡑࡢᚋ㸪㧗㏿⮬ື㣕㊧ㄞࡳྲྀࡾ⿦⨨ HTS ࡟ࡼࡾ஝ᯈ࡟グ㘓ࡉࢀࡓ࣑࣮ࣗ࢜ࣥࡢ㣕㊧ࡢ⏬ീࢆࢹࢪࢱࣝࢹ࣮ࢱ
໬ࡋ㸪࣑࣮ࣗ࢜ࣥࡢ㣕㊧ࢆ෌ᵓᡂࡋࡓࠋ୍ᯛࡢ஝ᯈ࡛࣑࣮ࣗ࢜ࣥࢆ᳨ฟࡋ࡚࠸ࡿຠ⋡ࡣ 90㸣௨ୖ㸪ࡲࡓゅᗘ⢭ᗘࡣゅᗘ࡟౫Ꮡࡋ࡞࠸᪉ྥ࡛ 3 milliradian ⛬ᗘ࡛࠶ࡾ㸪◊✲┠ⓗࢆ㐩ᡂࡍࡿࡓࡵ࡟ၥ㢟ࡢ࡞࠸ࢡ࢜ࣜࢸ࢕ࢆ☜ಖ࡛ࡁ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋIII) ࡟ࡘ࠸࡚㸪タ⨨ࡋࡓ 8 ⟠ᡤࡢほჾࡣ⌧ᅾ࣑࣮ࣗ࢜ࣥࡢ㣕㊧ࢆ⵳✚ࡋ࡚࠸ࡿ᭱୰࡛

࠶ࡾ㸪2020 ᖺ㸲᭶࡟ᅇ཰ࡋࡓᚋ㸪II )࡜ྠࡌὶࢀ࡛ゎᯒࢆ⾜ࡗ࡚ࡺࡃணᐃ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭࣭࣭㸰௳䞉ᐑᐑᮏᡂᝅ , 㛗ཎ⩧ః, ᳃ᓥ㑥༤, ୰㔝ᩄ⾜, ᑠᒣ┿ே, 㕥ᮌ㞝௓, ඲᪉఩䝭䝳䜸䜾䝷䝣䜱䛻䜘䜛ⅆᒣほ 䠖䡚኱ᐊᒣ(㟼ᒸ┴ఀᮾᕷ)䛻䛚䛡䜛ᐇドィ⏬䡚, ᪥ᮏⅆᒣᏛ఍ 2019 ᖺ⛅Ꮨ኱఍䠈⚄ᡞ኱Ꮫ䠈2019 ᖺ 9 ᭶ 25 ᪥
䞉S. Miyamoto, S. Nagahara, K. Morishima, T. Nakano, M. Koyama, Y. Suzuki,“Omnidirectional muography for volcanoes : the plan for first experimental proof in
Omuroyama, Shizuoka, Japan”, ICMaSS2019, Nagoya(Japan), 2th Nov., 2019.

53ู⣬ᵝᘧ㸰㸫㸰ཎᏊ᰾஝ᯈࢆ⏝࠸ࡓ 0H9 ⣭࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࡢ≉ᛶホ౯
Characterization of 100 MeV-class laser-accelerated protons using nuclear emulsion㔠ᓮ┿⪽࣭⚄ᡞ኱Ꮫ኱Ꮫ㝔࣭ᾏ஦⛉Ꮫ◊✲⛉࣭ຓᩍ⚟⏣♸ோ࣭㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓ࣭㛵すග⛉Ꮫ◊✲ᡤ࣭ୖᖍ◊✲ဨ⚄㔝ᬛྐ࣭ᮾி኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ⣔◊✲⛉࣭ຓᩍὸ஭Ꮥᩥ࣭⚄ᡞ኱Ꮫ኱Ꮫ㝔࣭ᾏ஦⛉Ꮫ◊✲⛉࣭኱Ꮫ㝔⏕᳃ᓥ㑥༤࣭ྡྂᒇ኱Ꮫ㧗➼◊✲㝔࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ ㏆ᖺࠊ᪂ࡓ࡞࢖࢜ࣥຍ㏿ᡭἲ࡜ࡋ࡚ࠊ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿ࡀὀ┠ࡉࢀ࡚࠾ࡾࠊຍ
㏿ჾタഛࡢᑠᆺ໬࣭┬㟁ຊ໬ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊᵝࠎ࡞ᛂ⏝฼⏝ࡀྍ⬟
࡜࡞ࡿ 100 MeV ࢆ㉸࠼ࡿࣉࣟࢺࣥⓎ⏕ࡣᮍࡔᡂຌࡋ࡚࠸࡞࠸ࠋࡲࡓࠊ100 MeV ࢆ㉸࠼ࡿ࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࢆ⢭ᗘⰋࡃ᳨ฟ࡛ࡁࡿỗ⏝ࡢ᳨ฟჾࡶᏑᅾࡋ࡞࠸ࠋᡃࠎࡢ◊✲ࢳ࣮࣒ࡀୡ⏺࡟ඛ㥑ࡅ࡚㛤Ⓨࡋࡓ࣐࢖ࢡ࣓࣮ࣟࢺ࣮ࣝ࢜ࢲ࣮ࡢỈ⣲ࢡࣛࢫࢱ࣮ࢆࢱ࣮
ࢤࢵࢺ࡜ࡋࡓ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿࡛ࡣࠊࢡࣛࢫࢱ࣮ࡢࢡ࣮ࣟࣥ⇿Ⓨࠊཬࡧࠊࢡࣛࢫࢱ࣮ෆ࡟Ⓨ⏕ࡍࡿ⾪ᧁἼ࡟ࡼࡗ࡚ 100 MeV ࢆ㉸࠼ࡿ㧗࢚ࢿࣝࢠ࣮ࣉࣟࢺࣥࡀⓎ⏕ࡍࡿྍ⬟ᛶࡀ࠶ࡿࠋࡇࡢࡼ࠺࡞㧗࢚ࢿࣝࢠ࣮ࣉࣟࢺࣥࡢ࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࡸ✵㛫ศᕸࢆࠊ࢖࢜ࣥࡢ㣕㊧ࢆ㧗⢭ᗘ࡟ྍど໬࡛ࡁࡿཎᏊ᰾஝ᯈࢆ⏝࠸࡚ホ౯ࡍࡿᢏ⾡ࢆ㛤ⓎࡋࠊᏳᐃ࠿ࡘ㧗ရ㉁࡞࣮ࣞࢨ࣮ຍ㏿࢖࢜ࣥࣅ࣮࣒Ⓨ⏕࡟ࡘ࡞ࡆࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࣮ࣞࢨ࣮㥑ື࢖࢜ࣥຍ㏿ᐇ㦂࡛ࡣࠊ㧗ᙉᗘ࣮ࣞࢨ࣮࡜ࢱ࣮ࢤࢵࢺ≀㉁࡜ࡢ┦஫స⏝࡟ࡼࡾⓑⰍࡢ࢚ࢿࣝࢠ࣮ࢫ࣌ࢡࢺࣝࢆ᭷ࡍࡿ࢖࢜ࣥࡀຍ㏿ࡉࢀࠊ⌧ᅾ࡛ࡣࠊ100 MeV ࡟㏕ࡿࣉࣟࢺࣥࡢຍ㏿ࡀ☜ㄆࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊ࢖࢜ࣥ࡜ྠ᫬࡟ X ⥺ࡸ㟁Ꮚ⥺࡜࠸ࡗࡓ࢖࢜ࣥィ ࡟࠾࠸࡚ࣀ࢖ࢬ࡜࡞ࡿᡂศࡀྠ᫬Ⓨ⏕ࡍࡿࡓࡵࠊ≉࡟ᩘ༑ MeV ࢆ㉸࠼ࡿ࢖࢜ࣥࡢィ ࡟ࡣᅔ㞴࡞ㄢ㢟ࡀṧࡉࢀ࡚࠸ࡿࠋ᫖ᖺᗘࠊᡃࠎࡢࢳ࣮࣒࡛ࡣࠊ࣮ࣞࢨ
࣮㥑ື࢖࢜ࣥຍ㏿ᐇ㦂࡟ཎᏊ᰾஝ᯈࢆᑟධࡋࠊ⤫ィᏛⓗ࡟Ỵᐃࡋࡓపឤᗘ⌧ീ᮲௳࡟ࡼ
ࡗ࡚ X ⥺ࡸ㟁Ꮚ⥺࡟ࡼࡿࣀ࢖ࢬࢆపῶࡉࡏࠊୡ⏺࡛ึࡵ࡚࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥࡢィ࡟ᡂຌࡋࡓࠋᮏ◊✲ᡂᯝࡣࠊୗグࡢཎⴭㄽᩥ࡜ࡋ࡚Ⓨ⾲ࡋ࡚࠾ࡾࠊ࣮ࣞࢨ࣮ຍ㏿࢖࢜ࣥィ࡛᭱ࡶಙ㢗ᛶࡢ㧗࠸᳨ฟჾ࡜ࡋ࡚⏝࠸ࡽࢀ࡚࠸ࡿᅛయ㣕㊧᳨ฟჾ CR-39 ࡜┦⿵ⓗ࡟⏝࠸ࡿࡇ࡜࡛ࠊࡼࡾಙ㢗ᛶࡢ㧗࠸ィ ࡀྍ⬟࡛࠶ࡿࡇ࡜ࢆ♧ࡋࡓࠋ୍᪉࡛ࠊᑗ᮶ⓗ࡟Ⓨ⏕ࡍࡿ࡜ᮇᚅࡉࢀࡿ 100 MeV ࢆ㉸࠼ࡿ࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥ࡟
ࡘ࠸࡚ࡣࠊィ

ᡭἲࡀ☜❧ࡉࢀ࡚࠸࡞࠸ࠋ᭱ࡶឤᗘࡢ㧗࠸ CR-39 ࡛ࡶ 27 MeV ࢆ㉸࠼ࡿࣉࣟࢺࣥ࡟ᑐࡋ࡚ឤᗘࢆ♧ࡉ࡞࠸ࡓࡵࠊ100 MeV ⣭ࡢࣉࣟࢺࣥィ ࢆ⾜࠺ࡓࡵ࡟ࡣ༑ศ
࡞ཌࡳࡢῶ㏿ᮦࡀᚲせ࡜࡞ࡾࠊィయ⣔ࡀ኱ᆺ໬ࡋ࡚ࡋࡲ࠺ࠋᮏ◊✲࡛ࡣࠊ100 MeV ࢆ㉸࠼ࡿࣉࣟࢺࣥ࡟ᑐࡋ࡚ࡶ༑ศ࡞ឤᗘࢆ♧ࡍཎᏊ᰾஝ᯈࢆ⏝࠸ࠊཎᏊ᰾஝ᯈ࡜ᩓ஘యࢆ

54

஺஫࡟✚ᒙࡋࡓ Emulsion Cloud Chamber (ECC)ෆ࡛ࡢࠊࣉࣟࢺࣥࡢࢡ࣮ࣟࣥከ㔜ᩓ஘㔞࠿ࡽ࢚ࢿࣝࢠ࣮ࢆ᥎ᐃࡍࡿᡭἲࢆ㛤Ⓨࡋ࡚࠸ࡿࠋ
௒ᖺᗘࡣࠊࣉࣟࢺࣥࡢࢡ࣮ࣟࣥከ㔜ᩓ஘㔞࡟㛵ࡍࡿᇶ♏ⓗ࡞ࢹ࣮ࢱࢆྲྀᚓࡍࡿࡇ࡜ࢆ
┠ⓗ࡜ࡋࠊ㔞Ꮚ⛉Ꮫᢏ⾡◊✲㛤Ⓨᶵᵓᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤࡢ HIMAC ࡟࠾࠸࡚ࠊECC
࡟ 100, 160, 230 MeV ࡢࣉࣟࢺࣥࢆ↷ᑕࡋࡓࠋ↷ᑕᚋࡢཎᏊ᰾஝ᯈࡣࠊྡྂᒇ኱Ꮫ࡟࡚
⌧ീฎ⌮ࢆ⾜࠸ࠊ⮬ື㣕㊧ㄞࡳྲྀࡾ⿦⨨ Hyper Track Selector ࢆ⏝࠸࡚ࠊECC ྛᒙࡢཎᏊ᰾஝ᯈ࡟グ㘓ࡉࢀࡓࣉࣟࢺࣥࡢ㣕㊧ࢆㄞࡳྲྀࡾࠊゎᯒࢆ⾜ࡗࡓࠋヲ⣽࡞ゎᯒࢆ⥅⥆୰࡛࠶ࡿࡀࠊᩓ஘ゅࡣ࢚ࢿࣝࢠ࣮ࡈ࡜࡟␗࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡾࠊప࢚ࢿࣝࢠ࣮⢏Ꮚ࡯
࡝ᩓ஘ゅࡣ኱ࡁࡃࠊ㧗࢚ࢿࣝࢠ࣮⢏Ꮚ࡯࡝ᩓ஘ゅࡀᑠࡉ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡇࡢ
⤖ᯝࡣ Lynch ࡽ࡟ࡼࡗ࡚ồࡵࡽࢀࡓᩓ஘ゅࡢ⤒㦂ᘧ࡟ᚑࡗ࡚࠸ࡿࠋ
ḟ࡟ࠊᩓ஘㔞࠿ࡽධᑕ࢚ࢿࣝࢠ࣮ࢆ᥎ᐃࡍࡿ࢔ࣝࢦࣜࢬ࣒ࡢ㛤Ⓨ࡟╔ᡭࡋࡓࠋࣔࣥࢸ
࢝ࣝࣟ⢏Ꮚ㍺㏦ࢥ࣮ࢻ࡛࠶ࡿ PHITS ࢆ⏝࠸࡚ࠊECC ࡢయ⣔ࢆ෌⌧ࡋࠊᵝࠎ࡞࢚ࢿࣝࢠ
࣮ࡢࣉࣟࢺࣥࢆධᑕࡉࡏࡓሙྜࡢࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓࠋᮏ◊✲࡛ࡣࠊᚓࡽࢀࡓᩓ
஘ゅࢆ Lynch ࡽࡢᘧ࡟௦ධࡋࠊධᑕ࢚ࢿࣝࢠ࣮ࢆ┤᥋ồࡵࡿࡔࡅ࡛ࡣ࡞ࡃࠊᶵᲔᏛ⩦࡟ࡼࡗ࡚ධᑕ࢚ࢿࣝࢠ࣮ࢆᐈほⓗ࡟᥎ᐃࡍࡿᡭἲࢆ㛤Ⓨࡋࡓ࠸࡜⪃࠼࡚࠸ࡿࠋ௒ᖺᗘࡣࠊ
ࢧ࣏࣮ࢺ࣋ࢡࢺ࣐ࣝࢩࣥ࡜ࢽ࣮ࣗࣛࣝࢿࢵࢺ࣮࣡ࢡࢆᑟධࡋࠊPHITS ࡟ࡼࡿࢩ࣑࣮ࣗࣞ
ࢩࣙࣥ࡟ࡘ࠸࡚ධᑕ࢚ࢿࣝࢠ࣮ࡢ᥎ᐃࢆ⾜ࡗࡓ࡜ࡇࢁࠊṇ⟅⋡ࡣ⣙ 60%࡜࡞ࡿࡇ࡜ࡀุ
᫂ࡋࡓࠋ௒ᚋࠊṇ⟅⋡ࡢྥୖࢆ┠ᣦࡍ࡜࡜ࡶ࡟ࠊ㛤Ⓨࡋࡓ࢔ࣝࢦࣜࢬ࣒ࢆࠊᐇ㝿࡟ࣉࣟࢺࣥࢆ↷ᑕࡋࡓ ECC ࡟㐺⏝ࡍࡿࠋࡲࡓࠊᚓࡽࢀࡓ⤖ᯝ࠿ࡽᨵၿⅬࢆぢฟࡋࠊᩓ஘ゅ࡟ࡼࡿධᑕ࢚ࢿࣝࢠ࣮᥎ᐃᡭἲࢆ☜❧ࡉࡏࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Takafumi Asai, Masato Kanasaki, Satoshi Jinno, Nobuko Kitagawa, Nobumichi Shutoh,
Satoshi Kodaira, Tomoya Yamauchi, Keiji Oda, Kunihiro Morishima, Yuji Fukuda,
Application of nuclear emulsions for the identification of multi-MeV protons in laser ion
acceleration experiments, High Energy Density Phys., 32, 44-50 (2019).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ T. Asai, M. Kanasaki, S. Jinno, N. Kitagawa, N. Shutoh, S. Kodaira, T. Yamauchi, K. Oda, K.
Morishima and Y. Fukuda, Application of Nuclear Emulsions for the Identification of
Laser-accelerated Multi-MeV Protons, International Conference on Materials and Systems
for Sustainability 2019 (ICMaSS 2019), Nagoya, 1-3, Nov. 2019.
࣭ὸ஭Ꮥᩥ㸪㔠ᓮ┿⪽㸪⚄㔝ᬛྐ㸪໭ᕝᬸᏊ㸪㤳⸨ಙ㏻㸪ᑠᖹ ⪽㸪ᒣෆ▱ஓ㸪ᑠ⏣ၨ஧㸪᳃ᓥ㑥༤㸪⚟⏣♸ோ㸪ཎᏊ᰾஝ᯈ࡟ࡼࡿ 100 MeV ⣭࣮ࣞࢨ࣮ຍ㏿ࣉࣟࢺࣥィ 㸪➨ 80 ᅇᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪໭ᾏ㐨㸪2020 ᖺ 9 ᭶ 18㹼21 ᪥㸬㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

55

ู⣬ᵝᘧ㸰㸫㸰⪃ྂᏛ㑇㊧ㄪᰝࡢࡓࡵࡢ
࣮࣎ࣜࣥࢢᆺᏱᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥࢢᢏ⾡ࡢ㛤Ⓨ◊✲
Development of borehole muon imaging method for archaeological investigation჆ᖭ ⱱ࣭ி㒔እᅜㄒ኱Ꮫ࣭ࣛࢸࣥ࢔࣓ࣜ࢝◊✲ᡤ࣭ᐈဨ◊✲ဨ᳃ᓥ 㑥༤࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ࢩࢫࢸ࣒◊✲ᡤ࣭≉௵ຓᩍ㸯㸬◊✲┠ⓗ ᮏ◊✲ࡢ┠ⓗࡣࠊᕧ኱࡞ᵓ㐀≀ࡢෆ㒊ࢆ㠀◚ቯ࡛ྍど໬ࡍࡿᢏ⾡ࠕᏱᐂ⥺࣑࣮ࣗ࢜ࣥ
࢖࣓࣮ࢪࣥࢢࠖࢆ⏝࠸ࡓྂ௦࣓ࢯ࢔࣓ࣜ࢝ᩥ᫂ࡢࣆ࣑ࣛࢵࢻᆺᘓ㐀≀ࡸᆅୗࢺࣥࢿࣝࡢ
ෆ㒊ᵓ㐀᥈ᰝᢏ⾡ࡢ㛤Ⓨ࡛࠶ࡿࠋලయⓗ࡞ᑐ㇟࡜࡞ࡿࡢࡣࠊᘓ㐀≀ෆ㒊ࡢ቎ᐊࡸᆅୗࢺ
ࣥࢿࣝ࡞࡝࡛࠶ࡾࠊᚑ᮶ࠊⓎ᥀ㄪᰝࡀ୺せ࡞ᐇ㊶᪉ἲㄽ࡜ࡋ࡚᥇⏝ࡉࢀ࡚ࡁࡓࠋࡇࡢࡼ
࠺࡞᪉ἲ࡟ࡼࡾᚓࡽࢀࡓࢹ࣮ࢱࡣ⪃ྂᏛ◊✲࡟⨨࠸࡚㈗㔜࡞᝟ሗࢆᥦ౪ࡋ࡚ࡁࡓ୍᪉
࡛ࠊᩥ໬㈈࡛࠶ࡿ㑇㊧ࡢ◚ቯࢆక࠺ࡔࡅ࡛ࡣ࡞ࡃከࡃࡢ㈝⏝࡜᫬㛫ࡀᚲせ࡜ࡉࢀࡿḞⅬࡶවࡡഛ࠼࡚࠸ࡿࠋ
Ᏹᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥࢢࡣࠊࡇࢀࡲ࡛࡟ࠊ࢚ࢪࣉࢺࡢࢡࣇ⋤ࡢࣆ࣑ࣛࢵࢻෆ㒊᥈ᰝ࡞࡝࡟⏝࠸ࡽࢀ࡚ᮍ▱ࡢᕧ኱✵㛫ࢆⓎぢࡍࡿ࡞࡝ࡢᐇ⦼㸦◊✲ᡤᢸᙜ⫋ဨࡢ᳃ᓥ㸧ࡀ࠶ࡿࠋ୍᪉࡛ࠊᏱᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥࢢࡣᏱᐂ⥺ࡢᛶ㉁࡟ࡼࡾᏱᐂ⥺᳨ฟჾࡼࡾࡶୗࡢ㡿ᇦ࡟ࡘ࠸࡚ࡣྍど໬ฟ᮶࡞࠸஦ࡀၥ㢟Ⅼ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ࣮࣎ࣜࣥࢢᏍ
࡞࡝ࢆேᕤⓗ࡟సࡾࡑࡢ⊃࠸✵㛫ෆ࡟᳨ฟჾࢆタ⨨ࡋ࡚ࡑࡢୖ㒊ࢆྍど໬ࡢᑐ㇟࡜ࡍ
ࡿࡇ࡜࡛ࠊᚑ᮶ࡣྍど໬ࡀᅔ㞴࡛࠶ࡗࡓ㡿ᇦ㸦ᆅୗࡸ㑇㊧ࡢ୰ᚰ㒊࡞࡝㸧࡬ࡢ㐺⏝ࢆྍ⬟࡜ࡍࡿᢏ⾡ࡢ㛤Ⓨ࡜ࡑࡢ⪃ྂᏛ㑇㊧ㄪᰝ࡬ࡢ㐺⏝ࢆ┠ᣦࡍ㸦ᅗ㸯㸧ࠋᅗ㸯㸬Ᏹᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥࢢ࡜࣮࣎ࣜࣥࢢᆺ᳨ฟჾࡢᴫᛕᅗ

56

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᮏ◊✲࡛ࡣࠊཎᏊ᰾஝ᯈ࡜࿧ࡪ෗┿ࣇ࢕࣒ࣝᆺࡢᏱᐂ⥺᳨ฟჾࢆ⏝࠸ࡓᏱᐂ⥺࣑࣮ࣗ࢜ࣥ࢖࣓࣮ࢪࣥࢢࡢᢏ⾡㛤Ⓨࢆ⾜ࡗࡓࠋᏱᐂ⥺࡜ࡣࠊ㉸᪂ᫍ⇿Ⓨ࡞࡝ࡢᏱᐂࡢ㧗࢚ࢿࣝࢠ࣮⌧㇟㉳ᅉࡢᨺᑕ⥺࡛࠶ࡾࠊᆅ⾲㠃࡟ࡣ࣑࣮ࣗ࢜ࣥ࡜࠸࠺⣲⢏Ꮚࡀᖖ࡟㝆ࡾὀ࠸࡛࠸ࡿࠋཎᏊ᰾஝ᯈࢆ⏝࠸ࡿ஦࡛࣑࣮ࣗ࢜
ࣥࡢ㌶㊧ࢆ㸯࣑ࢡࣟࣥ௨ୗࡢ㧗࠸⢭ᗘ࡛❧యⓗ࡟グ㘓ࡍࡿ஦ࡀฟ᮶ࡿࠋཎᏊ᰾஝ᯈࡢ᳨
ฟཎ⌮ࡣࠊ㖟ሷ෗┿ࣇ࢕࣒ࣝ࡟࠾ࡅࡿගࡢឤගཎ⌮࡜ྠࡌ࡛࠶ࡿࡓࡵ࡟ࠊࡑࡢ᳨ฟ࡟ࡣ
㟁※ࢆᚲせ࡜ࡋ࡞࠸ࠋࡉࡽ࡟ࠊࡑࡢ኱ࡁࡉࡶ⮬⏤࡟〇సࡍࡿ஦ࡀฟ᮶ࡿࠋຍ࠼࡚グ㘓⣲Ꮚ࡛࠶ࡿ㖟ሷࡢ኱ࡁࡉ㸦200nm㸧࡟ࡼࡾỴᐃࡉࢀࡿ㧗࠸✵㛫ศゎ⬟࡟ࡼࡾ 1mm ௨ୗࡢཌࡉ࡛ᩘ࣑ࣜࣛࢪ࢔ࣥ㸦1 ੊ඛࢆᩘ m ࡢ⢭ᗘ࡛Ỵᐃ㸧ࡢ᪉ྥỴᐃ⢭ᗘࡀᚓࡽࢀࡿࠋࡇࢀ
ࡽࡢ≉ᚩࢆ⏕࠿ࡍ஦࡛ࠊ࣮࣎ࣜࣥࢢᏍࡢࡼ࠺࡞⊃࠸✵㛫࡛ᶵ⬟ࡍࡿ᳨ฟჾࢆᐇ⌧࡛ࡁࡿࠋ࣮࣎ࣜࣥࢢᏍෆ࡟タ⨨ࡋࡓཎᏊ᰾஝ᯈࡣࠊ୍ᐃᮇ㛫ࡢᚋ࡟ᅇ཰ࡋ࡚⌧ീࡍࡿࠋࡇࡢほᮇ㛫୰࡟⵳✚ࡋࡓᏱᐂ⥺࣑࣮ࣗ࢜ࣥࡢ㌶㊧ࢆᑓ⏝ࡢ㧗㏿ㄞࡳྲྀࡾ㢧ᚤ㙾⿦⨨㸦Hyper
Track Selector㸧࡟ࡼࡾㄞࡳฟࡍࡇ࡜࡛ศᯒࡀྍ⬟࡜࡞ࡿࠋࡇࡢほ ᮇ㛫୰ࡶ㟁※ࢆᚲせ࡜ࡋ࡞࠸ࡓࡵࠊ㑇㊧ㄪᰝࡢ⌧ሙ࡛ࡢᐇ⏝࡟࠾࠸࡚ࡣ኱ࡁ࡞฼Ⅼ࡜࡞ࡿࠋ௒ᖺᗘࡣࠊᮏᢏ⾡࡟࠾࠸࡚㔜せ࡞ᇶᮏᛶ⬟ࡢ୍ࡘ࡛࠶ࡿཎᏊ᰾஝ᯈࡢᨺᑕ⥺⪏ᛶࡢホ౯ࢆ⾜ࡗࡓࠋ࣮࣎ࣜࣥࢢࡢࡼ࠺࡞⊃࠸✵㛫࡟タ⨨ࡍࡿሙྜ࡟ࡣࠊࡑࡢ࿘ᅖࢆᅵተ➼࡟ᅖࡲࢀࡿࡓࡵࠊࡑࡢᅵተ⎔ቃ࡟⏤᮶ࡍࡿᨺᑕ⥺ࡢᙳ㡪ࢆ኱ࡁࡃཷࡅࡿࠋၥ㢟࡜࡞ࡿᨺᑕ⥺ࡢ୺࡞ᡂศࡣ࣐࢞ࣥ⥺࡜࿧ࡪ㧗࠸࢚ࢿࣝࢠ࣮ࡢග࡛࠶ࡿࡀࠊࡑࡢ࣐࢞ࣥ⥺ࡀཎᏊ᰾஝ᯈ
୰࡛㟁Ꮚࢆᩓ஘ࡍࡿ஦࡛ࡑࡢ㟁ᏊࡀཎᏊ᰾஝ᯈ୰࡟グ㘓ࡉࢀࡿࡓࡵ࡟࣑࣮ࣗ࢜ࣥほ࡟࠾ࡅࡿ୺せ࡞ࣀ࢖ࢬ࡜࡞ࡿࠋࡇࡢࣀ࢖ࢬࡢ㔞࡟ࡼࡾほ ᮇ㛫ࡢୖ㝈ࡀỴᐃࡉࢀࡿࠋᮏ
◊✲࡛ࡣࠊ0.08PSv/h ࡜ 0.18PSv/h ࡢ␗࡞ࡿ⎔ቃ࡟ཎᏊ᰾஝ᯈ࡟⨨࠸࡚ࣀ࢖ࢬ࡜࡞ࡿ࢞ࣥ
࣐⥺ࢆグ㘓ࡍࡿ஦࡛ࡑࡢ⪏ᛶࡢホ౯ࢆ⾜ࡗࡓ㸦ᅗ㸰㸧ࠋࡑࡢ⤖ᯝࠊ୺࡟࣐࢞ࣥ⥺ࡢ✚⟬㔞࡛ 100PSv ࡀ㝈⏺㸦0.1PSv/h ࡢ⎔ቃ࡛⣙ 40 ᪥㸧࡛࠶ࡿ࡜࠸࠺ᬻᐃ⤖ᯝࢆᚓࡓࠋᐇ㝿࡟ࡣࠊᅵተࡢᡂศ࡟ࡼࡾ⥺✀ࡀ␗࡞ࡿࡓࡵ࡟ࠊᐇ㝿ࡢほ⎔ቃ࡛ࡢホ౯ࡀᚲせࡀ࠶ࡿࠋ௒

ᚋࡣࠊࡇࡢࡼ࠺࡞ほⅬ࡟ຍ࠼࡚ᐇ㝿ࡢほ య⣔ࢆྵࡵࡓ᳨ウࢆ㐍ࡵࡿࠋᅗ㸰㸬0.08PSv/h㸦a㸧࡜ 0.18PSv/h㸦b㸧ࡢ⎔ቃ࡟⨨࠸ࡓཎᏊ᰾஝ᯈࡢ㢧ᚤ㙾⏬ീ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ࡞ࡋ57

ู⣬ᵝᘧ㸰㸫㸰෤ᮇ㛫࡟࠾ࡅࡿᑠᆺỈ㌴ࡢ⟶⌮ࢩࢫࢸ࣒ࡢᵓ⠏Development of a novel monitoring system for a micro-hydraulicturbine in winter periodụ⏣ᩄᙪ࣭ಙᕞ኱Ꮫ࣭ᕤᏛ㒊࣭≉௵ᩍᤵᒸᒣ᭸Ꮚ࣭኱ṇ኱Ꮫ࣭ே㛫Ꮫ㒊࣭ᩍᤵబ⸨ᰤ୍࣭᪂₲ᕤ⛉኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵෆᒣ▱ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ◊✲ࡢ᭱⤊┠ᶆࡣ㸪㞷ị࡟ᙉ࠸ฟຊ㸯N: ௨ୗࡢᑠᆺỈ㌴ࢆ㛤Ⓨࡋᐇ⏝໬ࡍࡿࡇ࡜࡛
࠶ࡾ㸪㌟㏆࡟ᏑᅾࡍࡿỈ㊰ࡸᑠつᶍἙᕝࡢỈຊ࢚ࢿࣝࢠ࣮ࡢ᭷ຠ฼⏝ࡢᣑ኱ࢆᅗࡿࡇ࡜
࡛࠶ࡿࠋ᪥ᮏࡢ㎰ᴗ⏝Ỉ㊰ࡢ㛗ࡉࡣ  ୓ NP㸦ᆅ⌫  ࿘┦ᙜ㸧࡛࠶ࡾ㸪ࡑࡢỈຊ࣏ࢸࣥࢩࣕࣝࡣཎⓎ㸯ᇶศ࡟┦ᙜࡍࡿ࡜ヨ⟬ࡉࢀ࡚࠸ࡿࠋࡋ࠿ࡋ㸪෤ᮇ㛫࡟࠾࠸࡚㸪Ỉ㊰ࡣ㞷࡛そࢃࢀ㸪ࡋࡤࡋࡤ㐠㌿㞀ᐖࡀ⏕ࡌࡿࠋୖ㏙ࡋࡓ◊✲ࡢ᭱⤊┠ᶆࢆ㐩ᡂࡍࡿࡓࡵ࡟ࡣ㸪㞷ịࡲࡌࡾࡢỈὶ࡟ᑐࡋ࡚ࡶᏳᐃࡋ࡚Ⓨ㟁ྍ⬟࡞Ỉ㌴Ⓨ㟁ࢩࢫࢸ࣒ࢆ㛤Ⓨࡍࡿࡇ࡜ࡣ
ࡴࢁࢇ㸪෤ᮇ㛫࡟࠾ࡅࡿᑠᆺỈ㌴ࡢ⟶⌮ࢩࢫࢸ࣒ࢆᵓ⠏ࡍࡿࡇ࡜ࡀ㔜せ࡛࠶ࡿࠋࡑࡢࡓ
ࡵᮏ◊✲࡛ࡣ㸪㞷ị࡟ࡼࡿỈ㊰ࡢᇙἐࡸ㛢ሰ㸪⼥㞷࡞࡝ࡢỈ㊰ࡢ≧ἣࡸᑠᆺỈ㌴ࡢ✌ാ≧ἣࢆ㐲㝸࠿ࡽ┘ど࡛ࡁࡿࢩࢫࢸ࣒ࢆᵓ⠏ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ◊✲௦⾲⪅ࡢᒃఫᆅ࡛࠶ࡾࠊ᪥ᮏ࡛ࡶ᭷ᩘ࡞㇦㞷ᆅᖏ࡛࠶ࡿ㛗㔝┴໭㒊ࡢಙ⃰⏫᯽ཎᆅ༊ࡢ㛤Ỉ㊰࡟㸰ྎࡢࢺࣞ࢖࣓ࣝ࢝ࣛ㸦ኪ㛫࡛ࡶ᧜ᙳྍ⬟㸧ࢆタ⨨ࡋ࡚ࠊ30 ศ㛫㝸࡛✚㞷≧ἣࡢ᧜ᙳࢆ⾜ࡗࡓࠋ㝆㞷࡟ࡼࡿ㞷ᗊࡢᡂ㛗ࢆᅗ㸯࡟౛♧ࡍࡿࠋᅗ㸦b㸧ࡣᅗ㸦a㸧ࡢ㸲᪥ᚋࡢ෗┿࡛࠶ࡾࠊ㛤Ỉ㊰ࡣ࡯࡯㞷࡛そࢃࢀ࡚࠸ࡿࠋᅗ㸰ࡣẼ ୖ᪼࡟ࡼࡿ⼥㞷ࡢ㐍⾜ࢆ౛♧ࡋࡓ෗┿࡛࠶ࡿࠋ㛤Ỉ㊰ୖࡢ࢔࣮ࢳᙧ㞷ᗊ㸦ᅗ㸦a㸧㸧ࡀࠊ㸴᫬㛫ᚋ࡟ࡣ⼥ゎᔂⴠࡋ࡚ࠊ㛤Ỉ㊰ࡀ⌧ࢀ࡚࠸ࡿࠋ2016 ᖺᗘ࠿ࡽ⥅⥆ࡋ࡚㸲ᖺ㛫࡟ࢃࡓࡗ࡚✚㞷≧ἣࡢほࢆ⾜ࡗࡓࠋ㝆㞷㔞ࠊẼ࡜Ỉࠊ㢼ἣ࡞࡝ࡢẼ㇟᮲௳࡟ࡼࡾࠊ㛤Ỉ㊰ୖࡢ㞷ᗊࡢᡂ      ᅗ㸦a㸧㛤Ỉ㊰ୖࡢ㞷ᗊ          ᅗ㸦㹠㸧ᅗ㸦a㸧࠿ࡽ㸲᪥ᚋᅗ㸯 㝆㞷࡟ࡼࡿ㞷ᗊࡢᡂ㛗58 ᅗ㸦a㸧㛤Ỉ㊰ୖࡢ㞷ᗊ         ᅗ㸦㹠㸧ᅗ㸦a㸧࠿ࡽ㸴᫬㛫ᚋᅗ㸰 Ẽ ୖ᪼࡟ࡼࡿ⼥㞷ࡢ㐍⾜㛗ࠊ⼥ゎᣲືࠊ⼥㞷࡟ࡼࡿቑỈ࡞࡝ᵝࠎ࡟ኚ໬ࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡼࡗ࡚ࠊᮏ㛤Ỉ㊰ࡣ✚㞷ୗ࡟࠾ࡅࡿᑠᆺỈ㌴ࡢ✌ാ≧ἣࢆ㐲㝸࠿ࡽ┘ど࡛ࡁࡿࢩࢫࢸ࣒ࢆᵓ⠏ࡍࡿࡓࡵࡢ㐺ᆅ࡛࠶ࡿࠋ  ᅗ㸱 ほ ࢹ࣮ࢱࡢྲྀᚓཬࡧࢹࣂ࢖ࢫࡢタᐃᅗ㸲 Ỉ㊰┘ど⏝ IoT ࢹࣂ࢖ࢫࡢࣁ࣮ࢻ࢙࢘࢔ᵓᡂ ḟ࡟ࠊIoT ࢹࣂ࢖ࢫࢆ฼⏝ࡋࡓ㐲㝸┘どࢩࢫࢸ࣒ࡢᵓ⠏ࢆ⾜ࡗࡓࠋ㐲㝸┘どࢩࢫࢸ࣒ࡢᴫせࢆᅗ 3ࠊ4 ࡟♧ࡍࠋᅗ 3 ࡣほࢹ࣮ࢱࡢྲྀᚓ࠾ࡼࡧࢹࣂ࢖ࢫタᐃࠊᅗ 4 ࡣỈ㊰┘ど⏝ IoT ࢹࣂ࢖ࢫࡢࣁ࣮ࢻ࢙࢘࢔ᵓᡂ࡛࠶ࡿࠋỈ㊰┘ど⏝ IoT ࢹࣂ࢖ࢫ࡟࠾࠸࡚㉥እ⥺࣓࡛࢝ࣛ᧜ᙳࡋࡓᫎീࠊ

ᗘ࣭‵ᗘࢹ࣮ࢱཬࡧ㉸㡢Ἴࢭࣥࢧ࡟ࡼࡿỈ఩ほࢹ࣮ࢱࡣࠊ࣐࢖ࢡࣟࢥࣥࣆ࣮ࣗࢱࡢไᚚ࡟ࡼࡾ࢖ࣥࢱ࣮ࢿࢵࢺୖࡢࢹ࣮ࢱࢧ࣮ࣂ࡟⵳✚ࡉࢀࡿࠋࣘ
࣮ࢨ㸦ࢹ࣮ࢱ㜀ぴ⪅㸧ࡣࠊࡇࡢࢹ࣮ࢱࢧ࣮ࣂ࡟࢔ࢡࢭࢫࡍࡿࡇ࡜࡟ࡼࡾࠊほࢹ࣮ࢱࢆྲྀᚓࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡲࡓࠊࢭࣥࢧࡢឤᗘࡸ ᐃ㛫㝸➼ࡢㄪᩚࢆ⾜࠺㝿࡟ࡶࡇࡢࢹ࣮
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1.69mm2 ୍ᐃ࡜ࡋ㸪⦪ᶓẚࡣ AR=1.00㸪6.76㸪52.0 ࡢ୕᮲௳࡜ࡋࡓ㸬ࡲࡓ㸪࢜ࣜࣇ࢕ࢫ
ࡢ⤠ࡾẚࡢᙳ㡪ࢆ᪂ࡓ࡟ホ౯ࡍࡿࡓࡵ࡟㸪࢜ࣜࣇ࢕ࢫᯈୖὶഃࡢ෇ᙧࣃ࢖ࣉෆ㒊࡟⤠ࡾࢆタࡅࡓ㸬ᅽຊᕪࡣǼP=4.00MPa㸪ୗὶᅽࡣ P 2 =0.02㹼1.20MPa㸪⁐Ꮡ㓟⣲⃰ᗘࡣ 5.7㹼
7.0ppm㸪Ỉࡣ 21㹼22Υ࡛࠶ࡿ㸬ᅗ㸱࡟ᅽຊ-ὶ㔞≉ᛶࡢᐃ⤖ᯝࢆࡶ࡜࡟⟬ฟࡋࡓὶ㔞ಀᩘࡢศᕸࢆ♧ࡍ㸬ⓑᢤࡁࡢࣉࣟࢵࢺࡣ࢜ࣜࣇ࢕ࢫࣉ࣮ࣞࢺୖὶഃࡢࣃ࢖ࣉෆᚄࢆᅛᐃࡋࡓሙྜࡢ⤖ᯝ࡛࠶ࡾ㸪ሬࡾࡘࡪࡋࡢࣉࣟࢵࢺࡣୖὶࣃ࢖ࣉෆ㒊࡟⤠ࡾࢆタࡅࡿࡇ࡜࡛⤠ࡾẚࢆᑠࡉࡃࡋࡓ⤖ᯝ࡛࠶ࡿ㸬⦪ᶓẚࡀᑠࡉ࠸᮲௳࡯࡝ὶ㔞ಀᩘࡀᑠࡉ࠸㸬ὶ㔞ಀᩘࡣ AR=52.0 ࡛᭱኱࡜࡞ࡾ㸪ࡇࡢ࡜ࡁࡢ㦁㡢ࡀ᭱ᑠ㸦2019 ᖺᗘᡂᯝ㸧࡛࠶ࡿ㸬⦪ᶓẚࡀ኱ࡁ࠸ሙྜ࡯࡝ᄇὶࡢ୕ḟඖ໬ࡀᢚไࡉࢀࡿࡇ࡜࡛⦰ὶࡀ⦆࿴ࡉࢀ㸪࢟ࣕࣅࢸ࣮ࢩࣙࣥ㛢ሰࡀᢚไࡉࢀࡿࡓࡵࡔ࡜
⪃࠼ࡿ㸬ୗὶᅽ࡟ᑐࡍࡿὶ㔞ಀᩘࡢኚ໬໙㓄ࡣ⦪ᶓẚ࡛␗࡞ࡾ㸪⦪ᶓẚࡈ࡜࡟⌧㇟ࡀ␗࡞ࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡿ㸬⤠ࡾẚࡢῶᑡ࡟ࡼࡾὶ㔞ಀᩘࡀቑ኱ࡍࡿ㸬ࡇࢀࡶᄇฟཱྀ࡛ࡢ
⦰ὶࡢᢚไ࡟ࡼࡿ㸬ୗὶᅽ࡟ᑐࡍࡿὶ㔞ಀᩘࡢ໙㓄ࡣ⤠ࡾẚ࡟౫Ꮡࡋ࡞࠸ࡇ࡜ࡀࢃ࠿ࡗࡓ㸬ᅗ㸰 ࢜ࣜࣇ࢕ࢫࣉ࣮ࣞࢺᅗ㸱 ୗὶᅽ࡟ᑐࡍࡿὶ㔞ಀᩘࡢኚ໬

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
࣭A. Watanabe㸪F. Yoshida, S. Iio, T. Uchiyama, K. Takamure, Noise Characteristics ofCavitating Jet through a Rectangular Orifice with Various Aspect Ratio. ICMaSS 2019, Nagoya
University, 2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥.

63

別紙様式２－２

オンデマンド型相乗り交通システムの動的需要管理と運行最適化手法に関する研究
Study on the dynamic demands management and operation optimization method forcustomized bus system劉鍇・大連理工大学・交通運輸学院・教授
陈志举・大連理工大学・交通運輸学院・大学院生（博士）
王江波・名古屋大学・工学研究科・大学院生（博士）山本俊行・名古屋大学・未来材料・システム研究所・教授
１．研究目的In order to promote the service level of customized bus system (CB) and kinds of demand
responsive shared transit system (DRSTS), as well as to optimize its operation system, the better
understanding on the CB demands and their spatial-temporal evolution is required. Further heoperation optimization models should be developed in order to achieve the complex decision-making
on bus routing, timetabling and bus deployment.

２．研究内容と成果
・A better understanding of passenger loyalty toward the CB service will help provide

better operation. The urgent and outstanding issue is how to incorporate the unobserved
heterogeneity in loyalty—in other words, how to reflect the effects of the frailty to terminate
subscription. This study fills the research gap through an empirical study in Dalian, China.
Three different survival models are developed to investigate the mechanism of subscription
behaviors, among which the shared frailty model considering the unobserved heterogeneity isdemonstrated to be the most appropriate. The results indicate that the historical purchasecharacteristics are the most important to CB user loyalty modeling and forecasting. Males are
more sensitive than females to the number of intermediate stations because of the potentially
increased uncertainty in waiting time related to the intermediate stations. The heterogenous
frailties resulting from the heterogeneity of the perceptible service quality in terms of
convenience and efficiency in subscribing/returning tickets and information availability in the
progress of the CB system significantly contribute to user loyalty deviations.
・This paper proposes CB demand models to investigate dynamic adjustment, spatial

interdependence, and spillover effects using spatial dynamic panel data techniques and abalanced panel dataset over two years. A wide range of variables for factors in terms of 1)
quality of service, 2) demographic characteristics, and 3) land use and accessibility, were minedfrom the operational data and additional geospatial big data sources and fused to explore theirdirect and spillover effects on CB demand. The key findings of this study provide important64

theoretical foundations for potential marketing orientations of the CB service.
・

In effect, the customized bus network design (CBND) problem is indeed a complex

optimization problem mainly involving request combination (i.e., combining individual requests
with similar spatial and temporal characteristics into an aggregate request), request selection(i.e., the choice of requests to be served), route planning, timetable design (i.e., estimating thearrival time at each node), vehicle deployment (i.e., determining the number and type of buses
to serve each route), etc. This is what motivated our work to develop a tangible optimization
model for the CBND problem with known requests of commuters. Formally, given a fleet ofheterogeneous buses, we seek to formulate an integrated model consisting of routing,timetabling, and vehicle deployment, so as to generate a set of demand-oriented bus services tocater for the commuters’ requests. Given the travel demand and a mixed fleet of vehicles, amixed integer linear programming (MILP) model is put forward for the complex
decision-making on bus routing, timetabling and bus deployment, with the objective ofgenerating a set of profitable bus services to cater for diverse commuting-trip requests. Due to
the NP-hardness of the customized bus network design problem, a branch-and-price method isimplemented to exactly solve the model. In addition, a column generation based heuristic
algorithm is proposed to seek (near) optimal solutions for large-scale instances. The
effectiveness of both the exact and heuristic methods is validated in the numerical experiments.

【研究成果の公表状況】
・ Wang, J., Yamamoto, T., Liu, K. Spatial interdependence and spillover effects in customized
bus demand: Empirical evidence using spatial dynamic panel models, Submitted to Transport
Policy, under the second round review. 2020.
・ Wang, J., Yamamoto, T., Liu, K. Key determinants of passenger loyalty to customized bus:
An investigation on hazard of users’ subscription termination, Trans. Res. Part C: Emerging
Technologies. In press. 2020.
・ Wang, J., Yamamoto, T., Liu, K. Role of customized bus services in the transportation
system: insight from user perspectives. J. of Adv. Transp. Article ID 6171532, 2019.
＜国際・国内会議＞
・ Wang J., Yamamoto T., Liu K. Insight on propensity to persistently subscribe customized bus
service based on long-term continuous observations, ICMC 2019, Kobe, Japan, 2019,Aug.18-22.
＜産業財産権＞
・出願状況、取得状況 None65ู⣬ᵝᘧ㸰㸫㸰㟁ຊ⏝⤯⦕ᮦᩱࡢຎ໬࡟㛵ࡍࡿᇶ♏ⓗ◊✲Study on Evaluation of Deterioration of Electrical Insulating Material◊✲௦⾲⪅ 㕥⨨ಖ㞝࣭ឡ▱ᕤᴗ኱Ꮫ࣭ᕤᏛ㒊 㟁ẼᏛ⛉࣭ᩍᤵ◊✲ศᢸ⪅ ྂ᳃㑳ᑛ࣭㫽⩚ၟ⯪㧗➼ᑓ㛛Ꮫᰯ 㟁ᏊᶵᲔᕤᏛ⛉࣭ᩍᤵ◊✲ศᢸ⪅ ᰩᮏ᐀࣭᫂ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤᐤ㝃◊✲㒊㛛෸ᩍᤵ◊✲ᡤᢸᙜᩍဨ ຍ⸨୔ె࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤࢩࢫࢸ࣒๰ᡂ㒊㛛࣭ᩍᤵ㸯㸬◊✲┠ⓗ 㟁ຊ⣔⤫ࡣ㧗㟁ᅽ㏦㟁࡜఩┦ㄪᩚ࡟ࡼࡿຊ⋡ᨵၿ࡟ࡼࡾ㏦㟁ࣟࢫࢆపῶࡋࠊ㏦㟁 CVࢣ࣮ࣈࣝ࠾ࡼࡧ㐍┦ࢥࣥࢹࣥࢧ࡟ඃࢀࡓ⤯⦕ᮦᩱࢆ౑⏝ࡍࡿࡇ࡜࡟ࡼࡾಙ㢗ᛶࡢ㧗࠸
㏦㟁⥙ࢆ⥔ᣢࡋ࡚ࡁࡓࠋࡋ࠿ࡋࠊࡇࢀࡽᶵჾࡢ⤒ᖺຎ໬࣓࢝ࢽࢬ࣒ࡣゎ᫂ࡉࢀ࡚࠾ࡽࡎࠊ
ຎ໬࣓࢝ࢽࢬ࣒࡟ᇶ࡙࠸ࡓᶵჾデ᩿ࠊṧᏑᑑ࿨ࡢホ౯࡟ࡼࡿࡉࡽ࡞ࡿ஦ᨾࡢᮍ↛㜵Ṇ࡜࣓ࣥࢸࢼࣥࢫࢥࢫࢺ๐ῶࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛ࠊࡇࢀࡽ㟁ຊᶵჾ࡟౑⏝ࡉࢀࡿ࣏ࣜ
ࣉࣟࣆࣞࣥࣇ࢕࣒ࣝࡸᯫᶫ࣏࢚ࣜࢳࣞࣥࢩ࣮ࢺࡢຎ໬ࢆホ౯ࡋࠊ⤯⦕◚ቯࡢ඙ೃࢆุ᩿
ࡍࡿࠋᚓࡽࢀࡓ⤖ᯝࢆࡶ࡜࡟㟁ຊᶵჾࡢಙ㢗ᛶྥୖ࡟ࡘ࡞ࡆࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࣏ࣜࣉࣟࣆࣞࣥ(PP)ࣇ࢕࣒ࣝࢆ⏝࠸ࡓ㟁ຊࢥࣥࢹࣥࢧࡢ㛗ᮇᛶ⬟࡟ᑐࡍࡿᇶ♏ⓗ᳨ウ࡜ࡋ࡚࣎࢖ࢻ୰࡛Ⓨ⏕ࡍࡿ㒊ศᨺ㟁(PD)࡜㈏㏻Ꮝ㸦⤯⦕◚ቯ࡟┦ᙜ㸧ࡢᙧᡂࡢ㛵ಀ࡟ࡘ࠸᳨࡚ウࢆ⾜࠺ࡓࡵࠊឡᕤ኱⊂⮬ࡢேᕤ㈏㏻Ꮝࢆᙧᡂࡋࡓ PP ࣇ࢕࣒ࣝࢆ⏝࠸ࡓ㟁ᴟ⣔ࢆᵓ⠏ࡋࠊྡྂᒇ኱Ꮫࡢ PD ィࢩࢫࢸ࣒ࢆ⏝࠸࡚ PD ≉ᛶࢆほ ࡋࠊᚑ᮶ヨᩱ࡜ࡢẚ㍑ࢆ⾜ࡗࡓࠋ௒ᖺᗘࡣ⿦⨨ࡢ⏝㏵ᣑ኱࡟ᑐᛂࡋࡓ୍㒊ࡢ㒊ရኚ᭦࡟క࠸ࠊ⢭ᗘࡸ㐣ཤࡢࢹ࣮ࢱ࡜ࡢᩚྜᛶࡢ☜ㄆࢆ⾜ࡗࡓᚋࠊ⤯⦕◚ቯࡢ඙ೃࡀ⾲ࢀࡿྍ⬟ᛶࡀ࠶ࡿ PD ࣃࣝࢫᩘࢆᨺ㟁㟁Ⲵ㔞࡛ࣂࣥࢻᖏ࡟ศࡅࠊࡑࡢ⤒᫬ኚ໬ࢆホ౯ࡋࡓࠋ
ேᕤ㈏㏻Ꮝࢆᙧᡂࡋࡓヨᩱࡢ 1 ࢧ࢖ࢡࣝ࠶ࡓࡾࡢ PD ࣃࣝࢫᩘࢆほࡋࡓ⤖ᯝࡢ౛ࢆ

ᅗ 1 ࡟♧ࡍࠋྠᅗࡣࠊPD ࣃࣝࢫᩘࢆ 200 pC ᖜࡢᨺ㟁㟁Ⲵ㔞࡛ࣂࣥࢻᖏ࡟ศࡅࡓࡶࡢ
࡛࠶ࡿࠋᚑ᮶ࡢヨᩱࡢᛴኚື๓࡜ࡢ㢮ఝⅬࡣ᫬㛫⤒㐣࡜࡜ࡶ࡟ PD ࣃࣝࢫᩘࡀ༢ㄪῶᑡ
ࡋ࡚࠸ࡃࡇ࡜࡛࠶ࡿࠋ␗࡞ࡗ࡚࠸ࡿⅬࡣ኱ࡁ࡞㟁Ⲵᖏࡢᨺ㟁ࡀᑡ࡞࠸ࠊᴟᛶᕪ(㈇>ṇ)ࡀⓎ⏕ࡍࡿࡇ࡜࡛࠶ࡿࠋᚑ᮶ࡢヨᩱࡢᛴኚື㛤ጞᚋ࡜ࡢ㢮ఝⅬࡣᴟᛶᕪ(㈇>ṇ)ࡢⓎ⏕ࠊ኱ࡁ࡞㟁Ⲵᖏࡢᨺ㟁ࡀᑡ࡞࠸ࡇ࡜࡛࠶ࡿࠋ
␗࡞ࡗ࡚࠸ࡿⅬࡣ PD ࣃࣝࢫᩘࡀ༢ㄪῶᑡࡋࠊ
኱ࡁ࡞ᛴኚືࡀ㉳ࡁ࡞࠸ࡇ࡜࡛࠶ࡿࠋ
௨ୖࡢࡼ࠺࡟ேᕤ㈏㏻Ꮝࢆᣢࡘヨᩱ࡛ࡣࠊᚑ᮶ࡢヨᩱࡢኚື㛤ጞᚋ࡜ࡢ㢮ఝⅬࡶぢࡽࢀࡿࡀࠊᑐᛂࡋ࡞࠸⌧㇟ࡶ࠶ࡾࠊPP ࣇ࢕࣒ࣝࡢຎ໬ࡢ≧ἣࡢᕪ␗ࠊ࣎࢖ࢻ୰ࡢ࢞ࢫࡢ
㐪࠸࡞࡝ࡀᐤ୚ࡋ࡚࠸ࡿྍ⬟ᛶࡀ⪃࠼ࡽࢀࡿࠋࡲࡓࠊ௒ᅇேᕤ㈏㏻Ꮝࢆᙧᡂࡋࡓヨᩱ࡛66

Ⓨ⏕ࡋࡓ 1 ࢧ࢖ࢡࣝ࠶ࡓࡾࡢ
PD ࣃࣝࢫᩘࡢᴟᛶᕪࡣࡍ࡭࡚㈇>ṇ࡛࠶ࡗࡓࡓࡵࠊ⌫㟁ᴟഃ࡟㓄⨨ࡋ࡚࠸ࡿேᕤ㈏㏻Ꮝࢆᙧ
ᡂࡋࡓ PP ࣇ࢕࣒ࣝࢆᖹᯈ㟁ᴟഃ࡟㓄⨨ࡍࡿࡇ࡜࡟ࡼࡗ࡚ࠊᴟ
ᛶᕪ࡜㟁ᴟ㓄⨨ࠊ㟁⏺ศᕸ࡜ࡢ㛵ಀ࡟ࡘ࠸࡚ࠊ௒ᚋᐇ㦂ⓗ࡟☜ㄆࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ     ᅗ 1. Number of PD pulses per cycle              (positive 0~1000pC, With artificial through-hole)࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Y. Takemoto, K. Tatsumi, T. Kato, M. Kurimoto, F. Komori, Y. Suzuoki, Y. Sasatani, Y. Sano,
S. Hamada, S. Ogura㸸͆A Basic Study for Partial Discharge Characteristic of Oil-immersed
Polypropylene Film Capacitor͇, International Conference on Materials and Systems For
Sustainability (ICMaSS) 2019, Nagoya University, Japan, November 1-3 (2019), A7-P-17(1203)
࣭ᯇ⏣ᑦ㍤㸪㕥⨨ಖ㞝㸪➉ඖ㞝኱㸪ᕴ೺ኴᮁ㸪ᰩᮏ᐀᫂㸪ຍ⸨୔ె㸪ྂ᳃㑳ᑛ㸪బ㔝ౡஓ㸪὾⏣ಙྜྷ㸪ᑠ಴ៅኴ㑻㸪➲㇂ᖾ⏕㸸
ࠕேᕤ㈏㏻Ꮝࢆᙧᡂࡋࡓ㟁ຊࢥࣥࢹࣥࢧ⏝ PP
ࣇ࢕࣒ࣝ࡟࠾ࡅࡿ PD ≉ᛶࠖ㸪➨ 50 ᅇ㟁Ẽ㟁Ꮚ⤯⦕ᮦᩱࢩࢫࢸ࣒ࢩ࣏ࣥࢪ࣒࢘㸪ྡྂᒇ኱Ꮫ㸪9 ᭶ 17㹼19 ᪥ (2019)㸪MVP1-1
࣭➉ඖ㞝኱㸪ᰩᮏ᐀᫂㸪ᕴ೺ኴᮁ㸪ຍ⸨୔ె㸪ྂ᳃㑳ᑛ㸪㕥⨨ಖ㞝㸪➲㇂ᖾ⏕㸪బ㔝ౡஓ㸪὾⏣ಙྜྷ㸪ᑠ಴ៅኴ㑻㸸ࠕᐦ㛢ࢠࣕࢵࣉ㟁ᴟ⣔ࢆ⏝࠸ࡓ࣏ࣜࣉࣟࣆࣞࣥࣇ࢕࣒ࣝ
㛫Ἔࢠࣕࢵࣉෆࡢ㒊ศᨺ㟁Ⓨගศᕸࠖ㸪➨ 50 ᅇ㟁Ẽ㟁Ꮚ⤯⦕ᮦᩱࢩࢫࢸ࣒ࢩ࣏ࣥࢪ
࣒࢘㸪ྡྂᒇ኱Ꮫ㸪9 ᭶ 17㹼19 ᪥ (2019)㸪MVP1-5࣭▼㯮Ṋᚿ㸪ୗ⏣♸ኴ㸪㕥⨨ಖ㞝㸪▮⏣೧ኈ㸪ྂ᳃㑳ᑛ㸪ᰩᮏ᐀᫂㸪ຍ⸨୔ె㸸ࠕ⏬ീฎ⌮࡟ࡼࡿ㏣ຍⓗ࡞㟁ᅽ༳ຍ๓ᚋ࡟࠾ࡅࡿ⤒ᖺຎ໬ CV ࢣ࣮ࣈࣝ ୰ࡢ࣎࢘ࢱ࢖ࢺ
࣮ࣜࡢኚ໬ࡢホ౯ࠖ㸪➨ 50 ᅇ㟁Ẽ㟁Ꮚ⤯⦕ᮦᩱࢩࢫࢸ࣒ࢩ࣏ࣥࢪ࣒࢘㸪ྡྂᒇ኱Ꮫ㸪
9 ᭶ 17㹼19 ᪥ (2019)㸪MVP3-5࣭➉ඖ㞝኱㸪ᕴ೺ኴᮁ㸪ຍ⸨୔ె㸪ᰩᮏ᐀᫂㸪ྂ᳃㑳ᑛ㸪㕥⨨ಖ㞝㸪➲㇂ᖾ⏕㸪బ㔝ౡஓ㸪὾⏣ ಙྜྷ㸪ᑠ಴ៅኴ㑻㸸ࠕศゎ࢞ࢫ྾཰㔞ࡢ㣬࿴≧ែࢆᶍᨃࡋࡓ࣏ࣜࣉࣟࣆࣞࣥࣇ࢕ࣝ
࣒㛫࢜࢖ࣝࢠࣕࢵࣉ࡟࠾ࡅࡿ㒊ศᨺ㟁≉ᛶࠖ㸪௧࿴ඖᖺ㟁ẼᏛ఍ᇶ♏࣭ᮦᩱ࣭ඹ㏻㒊㛛኱఍㸪ᒾᡭ኱Ꮫ㸪9 ᭶ 3㹼4 ᪥ (2019), 3-B-a2-2࣭➉ඖ㞝኱㸪ᕴ೺ኴᮁ㸪ຍ⸨୔ె㸪ᰩᮏ᐀᫂㸪ྂ᳃㑳ᑛ㸪㕥⨨ಖ㞝㸪బ㔝ౡஓ, ὾⏣ಙྜྷ㸪ᑠ಴ៅኴ㑻㸪➲㇂ᖾ⏕㸸ࠕ࣏ࣜࣉࣟࣆࣞࣥࣇ࢕࣒ࣝ㛫࢜࢖ࣝࢠࣕࢵࣉ㟁ᴟ⣔࡟࠾ࡅࡿ㒊ศᨺ㟁Ⓨ⏕≉ᛶࠖ㸪௧࿴ඖᖺᗘ㟁ẼᏛ఍㟼Ṇჾ◊✲఍㸪㟁ẼᏛ఍఍㆟ᐊ㸦ᮾி㸧㸪
12 ᭶ 20 ᪥ (2019)㸪SA-19-09467ู⣬ᵝᘧ㸰㸫㸰㟁Ẽ⮬ື㌴ࡢ㠀᥋ゐᆺ඘㟁ࢩࢫࢸ࣒
Non-contact Charging System for Electric Vehicles༓ఫᬛಙ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵᾆᓮ┤ග࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ᩍᤵ⯅㑣⠜ྐ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭ຓᩍ⯚ᶫಇஂ࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭㠀ᖖ໅ㅮᖌຍ⸨୔ె࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ࢚ࢿࣝࢠ࣮㈨※ࡢᯤῬࡸ஧㓟໬Ⅳ⣲᤼ฟ㔞ࡢ๐ῶ, ⬺ཎⓎࡢືࡁ࠿ࡽ, ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮ࢆά⏝ࡋࡓ㟁※ࡀὀ┠ࢆ㞟ࡵ࡚࠸ࡿ. ≉࡟ఫᏯ⏝ࡢኴ㝧ගⓎ㟁ჾ(PV)ࡣ
ᅜෆ࡛ᗈࡃᑟධࡉࢀ࡚࠸ࡿࡀ, ᅛᐃ౯᱁㈙ྲྀไᗘ(FIT)ࡢ㈙ྲྀᮇ㛫⤊஢ࡸ, PV ࡟ࡼࡿⓎ㟁㟁ຊ౯᱁ࡀ㟁ຊ఍♫ࡢⓎ㟁ࢥࢫࢺࢆୗᅇࡿࢢࣜࢵࢻ࣭ࣃࣜࢸ࢕ࢆ㐩ᡂࡍࡿぢ㎸ᅗ 1 ┤ὶ⤥㟁࢔ࣃ࣮ࢺࡢࢩࢫࢸ࣒ᵓᡂ

ࡳࡀ࠶ࡿࡇ࡜࠿ࡽ, ఫᏯෆ࡟࠾ࡅࡿ࢚ࢿࣝ

⾲ 1 ⮬❧㐠㌿᫬ࡢไᚚᡭἲ

ࢠ࣮ࡢ⮬⤥⮬㊊࡟㛵ᚰࡀ㧗ࡲࡗ࡚࠸ࡿ. ࡋ
࠿ࡋ, ୍⯡ⓗ࡞ఫᏯෆࡢ㟁ຊࢩࢫࢸ࣒࡛ࡣ
PV ࡟ࡼࡗ࡚Ⓨ㟁ࡉࢀࡓ㟁ຊࡣ୍ᗘ AC 㟁ຊ࡟ኚ᥮ࡉࢀ, ෌ࡧ DC 㟁ຊ࡟ኚ᥮ࡉࢀࡓ
ᚋ, ࡑࡢ࡯࡜ࢇ࡝ࡀᐙ㟁ࡸ㟁Ẽ⮬ື㌴(EV)➼ࡢ┤ὶ㟁ຊᶵჾ࡛ᾘ㈝ࡉࢀࡿࡓࡵ฼⏝ຠ⋡ࡀపῶࡉࢀ࡚࠸ࡿ.
ࡑࡇ࡛ᮏ◊✲࡛ࡣ, 380V ࡢ┤ὶ⤥㟁⥺ࢆ᭷ࡍࡿࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࢆᥦ᱌ࡋ, 㟁ຊኚ᥮ຠ⋡ࡢᨵၿ࡜࢔ࣃ࣮ࢺࡢ⮬❧㐠㌿࡟ࡘ࠸᳨࡚ウࡍࡿ. ᥦ᱌ࡍࡿࢩࢫࢸ࣒ᵓᡂ࡜࢚ࢿࣝ
ࢠ࣮࣐ࢿ࣮ࢪ࣓ࣥࢺᡭἲ࡟ࡼࡾ㟁ຊᦆኻపῶ࡜⥭ᛴ᫬ࡢ⮬❧㐠㌿ࢆ㐩ᡂࡋ, PV Ⓨ㟁㟁ຊࡢ฼⏝ຠ⋡࠾ࡼࡧ㟁ຊ౪⤥ࡢಙ㢗ᛶࢆᨵၿࡍࡿ. ᥦ᱌ᡭἲࡢ᭷ຠᛶࡣ MATLAB/
Simscape Electrical ࡟ࡼࡗ᳨࡚ドࡉࢀࡿ.

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ࠓ◊✲ᴫせࠔ ᳨ウࡍࡿࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࡢࢩࢫࢸ࣒ᵓᡂࢆᅗ 1 ࡟♧ࡍ. ࢫ࣐࣮ࢺ࢔ࣃ
࣮ࢺࡣኴ㝧ගⓎ㟁ჾ, 㐃⣔ࢥࣥࣂ࣮ࢱ, ࣄ࣮ࢺ࣏ࣥࣉ, 㟁Ẽ⮬ື㌴, ㈇Ⲵ, ᐃ⨨ᆺ⵳㟁ụࢆ᭷ࡋ, ᡞᩘࡣ 10 ࡜ࡋ࡚᝿ᐃࡉࢀࡿ. ࡲࡓ, ኚ᥮ᦆኻపῶࡢࡓࡵ 380V ࡢ┤ὶ⤥㟁⥺ࢆ᭷ࡍࡿ. ㏻ᖖ㐠㌿᫬࡟࠾࠸࡚ࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࡣ㐃⣔ࢥࣥࣂ࣮ࢱ࡟ࡼࡾ 200V ࡢ஺ὶ

68㓄㟁⣔⤫࡟᥋⥆ࡉࢀࡿࡓࡵ, 㐃⣔ࢥࣥࣂ࣮ࢱ
ࡀ┤ὶ⤥㟁㟁ᅽ⥔ᣢࢆ⾜࠺. ୍᪉, 㓄㟁⣔⤫ࡢᨾ㞀➼࡟ࡼࡾࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࡀ⮬❧㐠㌿ࢆ⾜࠺㝿ࡣ㐃⣔ࢥࣥࣂ࣮ࢱࢆ౑⏝࡛ࡁ࡞࠸ࡓࡵ, EV ⵳㟁ụࡸࣄ࣮ࢺ࣏ࣥࣉࢆไᚚࡍ
ࡿࡇ࡜࡛┤ὶ⤥㟁㟁ᅽࡢ⥔ᣢࢆ⾜࠺. ࡇࢀࡽࡢྍไᚚᶵჾࡣ⾲ 1 ࡟♧ࡍไᚚᡭἲ࡟ᚑ࠸㐠ᅗ 2 EV ඘㟁ࢩࢫࢸ࣒㌿ࡉࢀࡿ. ⮬❧㐠㌿ࡢ EV ⵳㟁ụ࡟ࡣ Droopไᚚࡀ㐺⏝ࡉࢀࡿࡀ, ౪⤥㟁ຊ㐣ከࡢሙྜࡣ
ኴ㝧ගⓎ㟁ჾ࡟ࡶ␲ఝⓗ࡞ Droop ไᚚࡀ㐺⏝
ࡉࢀࡿ. ୖグࡢไᚚᡭἲࢆ㐺⏝ࡍࡿ EV ඘㟁ࢩࢫࢸ࣒࠾ࡼࡧኴ㝧ගⓎ㟁ࢩࢫࢸ࣒ࡢࢩ࣑
࣮ࣗࣞࢩࣙࣥࣔࢹࣝࢆᅗ 2, 3 ࡟♧ࡍ.
ࠓࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࠔ ࢩ࣑࣮ࣗࣞࢩࣙ

ᅗ 3 ኴ㝧ගⓎ㟁ࢩࢫࢸ࣒࡛ࣥࡣ⣔⤫᥋⥆࣮ࣔࢻ࡜⮬❧㐠㌿࣮ࣔࢻ࡟࠾ࡅࡿࢩࢫࢸ࣒ࡢ㐠㌿࡟ࡘ࠸᳨࡚ドࡋࡓ. ᅗ
4 ࡟♧ࡍ┤ὶ⤥㟁㟁ᅽࡣ⣔⤫᥋⥆࣮ࣔࢻ࡟࠾࠸࡚ 380V ࢆ⥔ᣢࡍࡿࡀ, ⮬❧㐠㌿࣮ࣔࢻ࡛ࡣ Droop ไᚚ࡟ษࡾ᭰ࢃࡿࡓࡵ㟁ᅽࡀኚ

ᅗ 4 ┤ὶ⤥㟁㟁ᅽືࡍࡿ. ᅗ 5 ࡟♧ࡍ PV ฟຊ㟁ຊ࠿ࡽ⮬❧㐠㌿᫬࡟␲ఝ Droop ไᚚ࡟ษࡾ᭰ࢃࡾ┤ὶ⤥㟁㟁ᅽࡀ⥔ᣢࡉࢀࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ. ᅗ 6
ࡣ EV ࡢ඘㟁㟁ຊ࡛࠶ࡾ, ⣔⤫᥋⥆᫬࡟ࡣ
3kW ୍ᐃ࡛඘㟁ࢆ⾜࠸ࠊ⮬❧㐠㌿࣮ࣔࢻ࡛ࡣ

ᅗ 5 ኴ㝧ගⓎ㟁㟁ຊ

Droop ไᚚࢆ⾜࠺ࡇ࡜ࡀ☜ㄆ࡛ࡁࡿ. ௨ୖࡢࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝࡼࡾ㟁Ẽ⮬ື㌴ࢆ᭷
ࡍࡿࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࡢ㟁ຊᦆኻపῶ࡜⣔⤫᥋⥆࣮ࣔࢻ࠾ࡼࡧ⮬❧㐠㌿࣮ࣔࢻ࡟࠾ࡅ
ࡿᏳᐃ㐠㌿ࢆ☜ㄆࡋࡓ.

ᅗ 6 EV ඘㟁㟁ຊ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ཪྜྷ ⚽ோ, ༓ఫ ᬛಙ, ຍ⸨ ୔ె,ࠕ㟁Ẽ⮬ື㌴ࢆ᭷ࡍࡿࢫ࣐࣮ࢺ࢔ࣃ࣮ࢺࡢ࢚ࢿࣝࢠ࣮࣐ࢿ࣮ࢪ࣓ࣥࢺᡭ
ἲࠖ, ௧࿴ඖᖺ㟁ẼᏛ఍㟁ຊ࣭࢚ࢿࣝࢠ࣮㒊㛛኱఍ㄽᩥ㞟, P69, 123-124 , Sep. 3-6, 2019.
Hidehito Matayoshi, Tomonobu Senjyu and Takeyoshi Kato "An Energy Management Scheme for a DC
Smart Apartment with Electric Vehicles", International Conference on Materials and Systems for
Sustainability 2019, A7-P-3 (1097), Nagoya University, Nagoya, Japan, November 1-3, 2019.8, 2018.

㸺⏘ᴗ㈈⏘ᶒ㸼ฟ㢪ணᐃࡣ࡞࠸.

69ู⣬ᵝᘧ㸰㸫㸰

ከᏍ㉁ࢭ࣑ࣛࢵࢡࢆ⏝࠸ࡓపࢱ࣮ࣝࣂ࢖࣐࢜ࢫ࢞ࢫ໬
ࣉࣟࢭࢫࡢ㛤Ⓨ
Development of biomass gasification process for low tar emission by porous ceramics
ᑠᯘ ₶࣭ᕤᏛ㝔኱Ꮫ࣭ᕤᏛ㒊ᶵᲔᕤᏛ⛉࣭෸ᩍᤵᡂ℩ ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ෌⏕ྍ⬟࢚ࢿࣝࢠ࣮ࡢ୍ࡘ࡛࠶ࡿࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮ࡢ㧗ຠ⋡฼⏝ࢆᅗࡿୖ࡛㸪⇕ศゎ࢞ࢫ໬࡟ࡼࡿẼయ⇞ᩱ໬ࡣ᭷ຠ࡞ᡭἲ࡛࠶ࡾ㸪ࡇࢀࡲ࡛ᩘከࡃࡢ᳨ウࡀ࡞ࡉࢀ࡚࠸
ࡿ㸬ᙜヱᢏ⾡ࡢㄢ㢟࡜ࡋ࡚㸪๪⏕ᡂ≀࡛࠶ࡿ㧗ἛⅬⅣ໬Ỉ⣲ᡂศࢆྵࡴࢱ࣮ࣝࡢΰධࡀ
ୖࡆࡽࢀ㸪ࡇࢀࡽࡢᢚไ࡟ࡼࡾ⇞ᩱ㟁ụⓎ㟁ࡸ࢞ࢫࢱ࣮ࣅ࣭ࣥ⵨Ẽࢱ࣮ࣅࣥࢥࣥࣂ࢖ࣥ
ࢻࢩࢫࢸ࣒࡞࡝㧗ຠ⋡࢚ࢿࣝࢠ࣮ኚ᥮ࣉࣟࢭࢫ࡬ࡢᒎ㛤ࡀྍ⬟࡜࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪⇕ศゎ࢞ࢫ໬㐣⛬࡟࠾ࡅࡿ in situ ࢱ࣮ࣝ㝖ཤᡭἲ࡜ࡋ࡚ከᏍ㉁ࢭ࣑ࣛࢵࢡࢆ⏝࠸ࡓ྾╔ศ㞳࣭ศゎ㝖ཤࢆᥦ᱌ࡋ㸪㐺⏝ࡍࡿከᏍ㉁ࢩࣜ࢝ࡢ≀⌮ⓗ࠾ࡼࡧ໬Ꮫⓗ≉ᛶࡀࢱ࣮ࣝ㝖ཤ≉ᛶ࡟ཬࡰࡍᙳ㡪࡟ࡘ࠸࡚ᐇ㦂ⓗ᳨ウࢆ⾜࠺㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏᖺᗘࡣ◊✲ࡢ➨୍ẁ㝵࡜ࡋ࡚㸪࢔ࢵࣉࢻࣛࣇࢺ࠾ࡼࡧࢲ࢘ࣥࢻࣛࣇࢺᅛᐃᗋࢆ஺஫
࡟✌ാࡋ࠺ࡿᑠᆺ࢞ࢫ໬⿦⨨ࢆ᪂ࡓ࡟タィ࣭ヨసࡋ㸪ᙜヱ⿦⨨ࡢ࢞ࢫ໬≉ᛶ࡟ࡘ࠸࡚ホ౯ࡋࡓ㸬 ࢞ࢫ໬⿦⨨ࡣ࢞ࢫ໬ࢆ⾜࠺཯ᛂሪ࡜࢞ࢫ୰ࡢࢱ࣮ࣝࢆ྾╔࣭⇕ᶅSampling bagศゎࢆ⾜࠺ᨵ㉁ሪࡢ஧ࡘࡢᅛᐃ

ᶇ

ᗋ࢞ࢫ໬⅔࡟ࡼࡗ࡚ᵓᡂࡉࢀࡿ

ᶈ

㸦Fig. 1㸧㸬ヨᩱ࡛࠶ࡿᮌ㉁࣌ࣞࢵ
ࢺࢆྛሪ 2 kg ඘ሸࡋ㸪཯ᛂሪୗ

ᶅData Loggerᶆthermocoupleᶇheat insulating material
ᶈGas washing bottleᶉBurnerᶆ㒊ࡼࡾ࢞ࢫ໬๣࡛࠶ࡿ✵Ẽࢆ 5

Air

L/min ὶධࡍࡿ㸬཯ᛂሪ࡛ࡣ⇞↝㸪

Fig. 1 Schematic diagram of experimental apparatus



ᶉ



⇕ศゎ࡟ࡼࡗ࡚⏕ᡂࡉࢀࡓ࢞ࢫ
ࡣࢱ࣮ࣝ㸦ᾮศ㸧ࢆከ㔞࡟ྵࡳᨵ㉁ሪࡢࣂ࢖࣐࢜ࢫࢆ㏻㐣ࡍࡿ㸬ࡑࡢ㝿㸪ࣂ࢖࣐࢜ࢫࡢ
ࡳ࡞ࡽࡎከᏍ㉁ᮦᩱࢆΰྜࡍࡿࡇ࡜࡛ࢱ࣮ࣝศࡣ྾╔ࡉࢀ㸪ࡉࡽ࡟㧗ᇦ࡟฿㐩ࡋࡓ㝿࡟⇕ศゎࡉࢀࡿࡇ࡜࡛㸪ࢱ࣮ࣝࣇ࣮ࣜࡢ࢞ࢫ໬࢞ࢫࢆ⏕ᡂࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿ㸬཯ᛂሪࡢ཯ᛂࡀ༑ศ࡟Ⓨ㐩ࡋࡓࡢࢆ☜ㄆࡋࡓࡽຍ⇕ཬࡧ✵Ẽ౪⤥᪉ྥࢆᨵ㉁ሪ࡟ษࡾ᭰࠼
ࡿ㸬⏕ᡂ࢞ࢫࡣࢧࣥࣉࣜࣥࢢࣂࢵࢢ࡟࡚཰㞟ࡋ㸪వ๫࢞ࢫࡣ⇞↝ฎ⌮ࢆࡍࡿ㸬ࢧࣥࣉࣜࣥࢢࡢ㝿㸪4 ᮏࡢ࢖ࣥࣆࣥࢪ࣮ࣕ࡜࢞ࢫࣇ࢕ࣝࢱ࣮࡟࡚ࢱ࣮ࣝࢆ࢟ࣕࢵࢳࡋ㸪࢞ࢫࡢ⤌ᡂศᯒࡣ࢞ࢫࢡ࣐ࣟࢺࢢࣛࣇ㸦GC-8A ཬࡧ GC-2014㸪ᓥὠ〇సᡤ㸧࡟࡚⾜࠺㸬70 ୍ሪࡢࡳࢆ⏝࠸࡚࢔ࢵࣉࢻࣛࣇࢺ᮲௳࡛ᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪ከ㔞ࡢࢱ࣮ࣝࡀ཯ᛂ⅔እ
࡟᤼ฟࡉࢀࡿ≧ἣࡀ☜ㄆࡉࢀࡓ㸬୍᪉㸪୍ሪ┠࡛ᚓࡽࢀࡓ⏕ᡂ࢞ࢫࢆ஧ሪ┠ࡢᮍຍ⇕ࣂ࢖࣐࢜ࢫᒙ࡟㏻㐣ࡉࡏࡿ࡜㸪኱༙ࡢࢱ࣮ࣝࡣࣂ࢖࣐࢜ࢫ࡬྾╔ࡋ㸪⅔እ࡬ࡢ᤼ฟࡣᢚไ
ࡉࢀࡿࡇ࡜ࡀᐇ㦂⤖ᯝ࠿ࡽ᫂ࡽ࠿࡜࡞ࡗࡓ㸬
Fig. 2 ࡟཯ᛂሪࡢ ᗘࡢ᫬㛫ኚ໬ࢆ㸪1Fig. 3 ࡟ྛ᥇ྲྀ᫬࡟࠾ࡅࡿ࢞ࢫ⤌ᡂ

2

3

4

ኚ໬ࢆࡑࢀࡒࢀ♧ࡍ㸬࡞࠾㸪࢞ࢫ᥇ྲྀࡣ Fig. 2 ࡢ◚⥺࡛♧ࡋࡓ᫬㛫࡟ᐇ᪋ࡋ࡚࠸ࡿ㸬㓟໬ᒙ࡜࡞ࡿᒙ
㧗 50 mm ࡛ࡣᗘࡀ 500 Υ㏆ഐ࡛ᐃᖖ≧ែ࡜࡞ࡗࡓ㸬ᐃᖖ≧ែ࡟฿㐩ᚋ㸪⣙ 250 Υ࡜࡞ࡿᒙ㧗 300 mm

Fig. 2 Temperature properties in the riser㏆ഐ࡛࢞ࢫ໬ࡀᨭ㓄ⓗ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬㐠㌿ษࡾ᭰࠼ᚋࡢࢧࣥ
ࣉࣝ 4 ࡢᡂศࡣ N 2 ࡀ 49.0 %㸪H2
ࡀ 8.3 %㸪CO ࡀ 15.3 %㸪
CH 4 ࡀ 5.3 %࡛࠶ࡗࡓ㸬౪⤥ࡋࡓ✵Ẽෆࡢ O2 ࡀࡍ࡭࡚㓟໬཯ᛂ࡟౑⏝ࡉࢀࡓ࡜௬
ᐃࡍࡿ࡜㸪1 min ࠶ࡓࡾ 1.13 g ࡢᮌ

Fig. 3 Produced gas compositions㉁࣌ࣞࢵࢺࡀ㓟໬཯ᛂࡋ㸪༢఩᫬㛫࠶ࡓࡾ࡟⇞↝࡟ࡼࡗ࡚Ⓨ⏕ࡍࡿⓎ⇕㔞ࡣ 331.27 J/s㸦ప఩Ⓨ⇕㔞ᇶ‽㸧࡜ヨ⟬ࡉࢀࡿ㸬୍᪉㸪⏕ᡂ࢞ࢫⓎ⇕㔞࡟ࡘ࠸࡚ࡣ࢞ࢫ໬࢞ࢫ୰ࡢ O 2 ⃰ᗘࢆ 0 ࡜ࡋ࡚ィ⟬ࡍࡿ࡜㸪⏕ᡂ࢞ࢫࡀ᭷ࡍࡿⓎ⇕㔞ࡣ 642.97 J/s ࡜࡞ࡾ㸪እ㒊ຍ⇕㔞㸦200 W㸧ࢆ⪃៖ࡋ࡚ࡶ⇞↝⇕㔞
௨ୖࡢⓎ⇕㔞ࢆᚓ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᙜヱ⿦⨨࡛ࡣ┦ᙜ㔞ࡢᨺ⇕ᦆኻࢆ⪃៖ࡍࡿᚲせࡀ࠶ࡾ㸪ࡑࡢⅬࢆ㚷ࡳ࡚ࡶ⌧≧࡛ࡣ⇕ⓗ࡞ᐃᖖ≧ែ࡟ࡣ฿㐩ࡋ࡚࠾ࡽࡎ㸪⿦⨨᩿⇕ᛶ⬟ࡢྥୖࡶྵࡵ௒ᚋࡉࡽ࡟ᨵၿࡍࡿணᐃ࡛࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ≉࡟࡞ࡋ
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Yuya SAKURAI, Yuji SAKAI, Jun KOBAYASHI, Effect of AAEMs on Pyrolysis andGasification of Different Species of Wood, ICMaSS 2019, Nagoya Univ., Japan, Nov. 1-3
2019.
࣭ Jun KOBAYASHI, Hiroyuki KATSUMATA, Hideki Murakami, Naoki KUBO, Hajime IIDA
and Ichiro NARUSE, Characteristics of exhaust heat recovery by catalytic reforming using
mixture of fuel and exhaust gases, ICMaSS 2019, Nagoya Univ., Japan, Nov. 1-3 2019.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ71ู⣬ᵝᘧ㸰㸫㸰᭷ᶵ࢚࢔ࣟࢰࣝィ ࡢࡓࡵࡢ DC ࣃࣝࢫࢢ࣮ࣟᨺ㟁ࣉࣛࢬ࣐ࢆ฼⏝ࡋࡓ┤᥋㉁㔞ศᯒἲࡢᵓ⠏Direct analysis in dc pulse glow discharge mass spectrometry
for atmospheric particulate organic aerosolsᕸ┠ 㝧Ꮚ࣭ᗈᓥ኱Ꮫ࣭኱Ꮫ㝔⤫ྜ⏕࿨⛉Ꮫ◊✲⛉࣭ຓᩍᡂ℩ ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ࢩࢫࢸ࣒๰ᡂ㒊㛛࣭ᩍᤵ㸯㸬◊✲┠ⓗ ㏆ᖺࠊ೺ᗣ࡟᭷ᐖ࡞ᙳ㡪ࢆཬࡰࡍ࡜ࡋ࡚ PM2.5 ࡞࡝ࡢ኱Ẽᾋ㐟⢏Ꮚ≧≀㉁㸦࢚࢔ࣟࢰࣝ㸧ࡀὀ┠ࡉࢀ࡚࠸ࡿࠋ኱Ẽ୰࡟ࡣேⅭ㉳※ࡸ⮬↛㉳※ࡢ᥹Ⓨᛶ᭷ᶵ໬ྜ≀㸦VOC㸧
ࡸ༙᥹Ⓨᛶ᭷ᶵ໬ྜ≀㸦SVOC㸧ࡀᏑᅾࡋ࡚࠾ࡾࠊࡇࢀࡽࡣග໬Ꮫ཯ᛂ࡟ࡼࡿ㓟໬࡟ࡼࡗ࡚஧ḟ⏕ᡂ᭷ᶵ࢚࢔ࣟࢰࣝ㸦SOA㸧࡬࡜ኚ໬ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡑࡢࡓࡵࠊSOAࡢ⏕ᡂ๓㥑యࡢ୍ࡘ࡛࠶ࡿ VOC ࢆࣜ࢔ࣝࢱ࢖࣒࡟ィࡍࡿࡇ࡜ࡣ኱Ẽ୰ࡢ࢚࢔ࣟࢰࣝ

ࡢ๐ῶᑐ⟇࡟᭷ຠ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ⏦ㄳ⪅ࡽࡀ⪃᱌ࡋࡓྠ㍈ᆺ࣮࣍ࣟ࢔ࣀ࣮ࢻ࣭࣍
࣮࣓ࣟࢵࢩࣗ࢝ࢯ࣮ࢻ࠿ࡽᵓᡂࡉࢀࡿ࢖࢜ࣥ※㸦ࢯࣇࢺࣉࣛࢬ࣐࢖࢜ࣥ※㸸SPI ※㸧ࢆ㉁㔞ศᯒィ㸦MS㸧࡜⤌ࡳྜࢃࡏࡓ SPI-MS ࢆ⏝࠸ࠊVOC ࡢ┤᥋ィ ᢏ⾡ࡢᵓ⠏ࢆ⾜࠺ࠋᮏᖺᗘࡣࠊᮏࢩࢫࢸ࣒ࡢ⢭ᗘホ౯ࡢࡓࡵࠊᐃ㔞ศᯒἲ࡟࠾ࡅࡿ᳨ฟ㝈⏺ࠊᐃ㔞ୗ㝈➼࡟ࡘ࠸࡚ホ౯ࡋࠊࡉࡽ࡟㔜Ỉ⣲໬⁐፹ࢆ⏝࠸࡚࢖࢜ࣥ໬཯ᛂࢆ᳨ウࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
VOC ࡢ୰࡛ࡶ࢔ࣝ࢝ࣥ㢮ࡣࠊ▼Ἔ࡟⏤᮶ࡍࡿ⇞ᩱࡢ฼⏝࡟ࡼࡿ⵨Ⓨ㸭⇞↝ࣉࣟࢭࢫ
࡟ࡼࡾⓎ⏕ࡋࠊSOA ࡢཎᅉ࡜࡞ࡗ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊᇶ♏ⓗ▱ぢࢆᚓࡿࡓࡵࠊn-࢔ࣝ
࢝ࣥ㸦n-࣊ࣉࢱࣥࠊn-࢜ࢡࢱࣥࠊn-ࣀࢼࣥࠊn-ࢹ࢝ࣥ㸧ࢆᐃᑐ㇟໬ྜ≀࡜ࡋࡓࠋᐃ᮲௳ࡣᅽຊ 3.0 kPaࠊ㟁ὶ 35 mAࠊヨᩱ๭ྜ 1.6%ࠊ࿘Ἴᩘ 3.0 kHzࠊࢹ࣮ࣗࢸ࢕࣮ẚ 50%
࡜ࡋࠊᨺ㟁࢞ࢫ㸦࢟ࣕࣜ࢔࢞ࢫ㸧࡟ࡣᐊෆ኱Ẽࢆ⏝࠸ࡓࠋ㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨n-࢔ࣝ࢝ࣥ㢮ࢆ࢖࢜ࣥ໬ࡍࡿ࡜ࠊ[M + O 㸫 3H]+㸦[M + 13]+㸧࡜࠸࠺ࣘࢽ࣮ࢡ࡞࢖࢜
ࣥࡀ᳨ฟࡉࢀࡿࠋᮏ࢖࢜ࣥ໬཯ᛂࢆ᳨ウࡍࡿࡓࡵࠊn-࣊ࣉࢱࣥࡢ㔜Ỉ⣲໬⁐፹㸦n-࣊ࣉࢱࣥ-d16㸧ࢆ⏝࠸࡚࣐ࢫࢫ࣌ࢡࢺࣝ

ᐃࢆ⾜ࡗࡓ࡜ࡇࢁࠊm/z 126 ࡢ఩⨨࡟[M + 10]+࡟┦ᙜࡍࡿศᏊ࢖࢜ࣥࣆ࣮ࢡࡀ࣮࣋ࢫࣆ࣮ࢡ࡜ࡋ᳨࡚ฟࡉࢀࡓࡇ࡜࠿ࡽࠊࡇࡢ࢖࢜ࣥࡣࠊ[M+ O 㸫 3D]+࡜⪃࠼ࡽࢀࡓࠋ[M + O 㸫 3H]+⏕ᡂ࡟࠾ࡅࡿ࢖࢜ࣥ໬཯ᛂࡣࠊศᏊ M ࠿ࡽ㓟⣲ศᏊ࢖࢜ࣥ࡟ࡼࡿࣄࢻࣜࢻᘬࡁᢤࡁ཯ᛂ࡟ࡼࡾ࢝ࣝ࣎࢝ࢳ࢜ࣥ㸦[M 㸫 H]+㸧ࡀ⏕ᡂࡉࢀࠊࡉࡽ࡟⬺Ỉ⣲཯ᛂࢆཷࡅ࡚ඹ㬆Ᏻᐃ໬ࡋࡓ࢔ࣜࣝ࢝ࢳ࢜ࣥ㸦[M 㸫 3H]+㸧ࢆ⏕ᡂࡋࠊ᭱ᚋ࡟࢜ࢰࣥ࡟ࡼࡾ㓟໬ࡉࢀࡿࡇ࡜࡟ࡼࡾࠊࣉࣟࢺࣥ໬ࡋࡓࢣࢺࣥయ㸦[M + O 㸫
3H]+㸧ࡀ⏕ᡂࡍࡿ࡜ᥦ᱌ࡋࡓࠋ
72࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Yoko Nunome, Kenji Kodama, Yasuaki Ueki, Ryo Yoshiie, Ichiro Naruse, and Kazuaki
Wagatsuma: Direct analysis of saturated hydrocarbons using glow discharge plasma
ionization source for mass spectrometry, Talanta, 204: 310–319, 2019.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Yoko Nunome, Kenji Kodama, Yasuaki Ueki, Ryo Yoshiie, Kazuaki Wagatsuma, and Ichiro
Naruse: "Glow discharge plasma mass spectrometry for direct analysis of saturatedhydrocarbons", International Conference on Materials and Systems for Sustainability 2019
(ICMaSS 2019): Nagoya: Nov. 2, 2019.
࣭ ᕸ┠㝧Ꮚࠊඣ⋢᠇἞ࠊ᳜ᮌಖ᫛ࠊ⩏ᐙுࠊᡂ℩୍㑻ࠊᡃጔ࿴᫂ࠊࣃࣝࢫࢢ࣮ࣟᨺ㟁ࣉࣛࢬ࣐ࢆ⏝࠸ࡓ࢔ࣝ࢝ࣥࡢ┤᥋㉁㔞ศᯒࠊ➨ 79 ᅇศᯒ໬Ꮫウㄽ఍ࠊ໭஑ᕞᅜ㝿఍㆟ሙ㸤AIMࠊ2019 ᖺ 5 ᭶ 18㹼19 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

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ู⣬ᵝᘧ㸰㸫㸰࢞ࢫษ᭰ᘧ CLP ⿦⨨ࢆ⏝࠸ࡓ CO2 ࠿ࡽࡢ CO 〇㐀
CO production from CO2 with a gas switching type CLP equipmentᑠᯘ ಙ௓࣭ᒱ㜧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᡂ℩୍㑻࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ ࢩࢫࢸ࣒๰⏕㒊㛛࣭ᩍᤵ㸯㸬◊✲┠ⓗ CO2 ᤼ฟ࡟ࡼࡿᆅ⌫ ᬮ໬ࡢၥ㢟࠿ࡽࠊCO2 ࢆཎᩱ࡜ࡋ࡚໬Ꮫཎᩱ࡜ࡋ࡚฼⏝ྍ⬟࡞ CO ࢆ〇㐀ࡍࡿࣉࣟࢭ
ࢫࡀὀ┠ࡉࢀ࡚࠾ࡾࠊ⌧ᅾ㧗ຠ⋡࡛ CO ኚ᥮ྍ⬟࡞ᵝࠎ࡞ゐ፹ࡀ㛤Ⓨࡉࢀࡘࡘ࠶ࡿࠋࡑࡢ୍᪉࡛ CO ኚ᥮ࢆᐇ⌧ࡍࡿࡓࡵࡢ⿦⨨࣭ࣉࣟࢭࢫࡢ㛤Ⓨࡣ࡯࡜ࢇ࡝㐍ࢇ࡛࠸࡞࠸ࠋሗ࿌⪅ࡣ᫖ᖺࡲ࡛㧗ຠ⋡࡛Ỉ⣲〇㐀ྍ⬟࡞ࢣ࣑࣮࢝ࣝࣝࣆࣥࢢࣉࣟࢭࢫࢆᐇ⌧ࡍࡿࡓࡵࠊ࢞ࢫษ᭰ᘧࡢ Redox ୍యᆺỈ⣲〇㐀⿦⨨ࡢ㛤Ⓨࢆ⾜ࡗ࡚࠾ࡾࠊᙜ
ヱ⿦⨨࡟ࡼࡾ㧗ຠ⋡࡛Ỉ⣲ࢆ㐃⥆ⓗ࡟〇㐀ྍ⬟࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋࡇࢀࡲ࡛ࡣ Redox ୍యᆺ཯ᛂ⿦
⨨ࢆ⏝࠸࡚࣓ࢱࣥ࡟ࡼࡾᅛయ㓟⣲ᢸయࢆ㑏ඖࡉࡏࠊ㑏ඖࡋࡓ㓟⣲ᢸయ࡟ࡼࡾỈ⵨Ẽࢆ㑏ඖࡍࡿࡇ࡜࡟ࡼࡾỈ⣲〇㐀ࢆ⾜ࡗ࡚࠸ࡓࡀࠊ㏫ࢣ࣑࣮࢝ࣝࣝࣆࣥࢢࣉࣟࢭࢫࢆᵓ⠏ࡍࡿࡇ࡜࡟ࡼࡾ CO2 ࡢ CO 㑏ඖࡀྍ⬟࡜࡞ࡿࠋ ࡑࡇ࡛ᮏᖺᗘࡣࠊࡇࢀࡲ࡛㓟⣲ᢸయ࡜ࡋ⏝࠸࡚ࡁࡓ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࢆ㏫ࢣ࣑࣮࢝ࣝࣝࣆࣥࢢ཯ᛂ࡟㐺⏝ࡋࠊ㏫ࢣ࣑࣮࢝ࣝࣝࣆࣥࢢ཯ᛂ࡟࠾ࡅࡿ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ㓟໬࣭㑏ඖᣲື࠾ࡼࡧ཯ᛂ㏿ᗘࢆ᫂ࡽ࠿࡟
ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᙜヱ◊✲࡛ࡣࠊ㓟⣲ᢸయ࡜ࡋ࡚࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࢆ⏝࠸ࠊ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ H2 ࠾ࡼࡧ CO2 ࡟ᑐࡍࡿ཯ᛂᛶࢆホ౯ࡍࡿࡓࡵ⇕㔜㔞ศᯒ⿦⨨(TG)ࢆ⏝࠸ࡓࠋ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺヨᩱࡣ⢊ᮎ≧ࡢ Fe2O3 ࡜ CaO
ࢆࡑࢀࡒࢀ 80ࠊ20 wt%ࢆΰྜࡉࡏࡓᚋࠊ✵Ẽὶ㏻ୗ 1473 K ࡛ 4 ᫬㛫↠↝ࡉࡏࡿࡇ࡜࡛స〇ࡋ࡚࠸ࡿࠋᚓࡽࢀ
ࡓ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡣ 20-53 μm ࡟ศ⣭ࡋࠊ཯ᛂᐇ㦂࡟⏝࠸ࡓࠋ཯ᛂᐇ㦂࡛ࡣ㓟⣲ᢸయ࡟ᑐࡋ࡚ H2 ࠶ࡿ࠸ࡣ CO2 ࢆ஺஫࡟ὶ㏻ࡉࡏࠊ཯ᛂ ᗘ࠾ࡼࡧ཯ᛂ࢞ࢫ⃰ᗘࡀ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ㓟໬࣭㑏ඖᣲື࡟୚࠼ࡿ
ᙳ㡪࡟ࡘ࠸࡚ホ౯ࢆ⾜ࡗࡓࠋ཯ᛂ ᗘࡣ 873-1223 K ࡜ࡋࠊN2 ࡜ CO2 ࡢὶ㔞ࢆㄪᩚࡍࡿࡇ࡜࡟ࡼࡾ CO2 ⃰ᗘࢆ
10㸪20㸪33㸪50㸪67 %࡟ኚ໬ࡉࡏࡓࠋࡲࡓࠊRedox ࢧ࢖ࢡࣝࢆ⧞ࡾ㏉ࡍࡇ࡜࡛࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ⪏ஂᛶ࡟ࡘ࠸࡚ࡶホ౯ࢆ⾜ࡗ࡚࠸ࡿࠋヨ㦂ᚋ࡟ࡣ SEM ࡟ࡼࡿ⾲㠃ほᐹ࠾ࡼࡧ XRD ࢆ⏝࠸ࡓᵓ㐀ゎᯒࡶᐇ᪋ࡋࡓࠋ
ᙜヱሗ࿌᭩࡟࠾࠸࡚ࡣ㓟໬࣭㑏ඖ཯ᛂ࡟࠾ࡅࡿ཯ᛂ ᗘࡀ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ཯ᛂᣲື࠾ࡼࡧ཯ᛂ㏿ᗘ࡟୚࠼ࡿᙳ㡪࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋ
 Fig.1 (A)ࠊ(B)࡟ H2 ⃰ᗘ 67%ࡢ᫬ࡢ 1073-1223 K ࠾ࡼࡧ 873-1023 K ࡟࠾ࡅࡿ㑏ඖ᫬㔜㔞ኚ໬⋡ W ࢆ♧ࡍࠋ㔜㔞ኚ໬⋡ W ࡣࠊ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺ㔜㔞ࢆึᮇ㔜㔞࡛㝖ࡍࡇ࡜࡟ࡼࡾ⟬ฟࢆ⾜ࡗ࡚࠸ࡿࠋH2 ࡟ࡼࡿ࢝ࣝࢩ
࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ㑏ඖ཯ᛂ࡛ࡣ཯ᛂ ᗘ࡟㛵ࢃࡽࡎ㔜㔞ኚ໬⋡ W ࡣ࠾࠾ࡼࡑ 0.78 ࡟཰᮰ࡋ࡚࠾ࡾࠊ࢝ࣝࢩ࢘
࣒ࣇ࢙ࣛ࢖ࢺ୰ࡢ Fe ࡢ⣙ 90㸣ࡀ㑏ඖࡉࢀ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡑࡢ୍᪉࡛཯ᛂ㏿ᗘ㸦᫬㛫࡟ᑐࡍࡿ㔜㔞ኚ໬⋡㸧ࡣ཯ᛂ ᗘ࡟ࡼࡾ኱ࡁࡃ␗࡞ࡗ࡚࠾ࡾࠊ ᗘࡀ㧗ࡃ࡞ࡿ࡜࡜ࡶ࡟཯ᛂ㏿ᗘࡀ㏿ࡃ࡞ࡿഴྥࡀぢࡽࢀࡓࡀࠊ཯ᛂ࢞ࢫࡢᣑᩓᚊ㏿࡟ࡼࡾ 1023 K ௨ୖ࡟࠾࠸࡚ࡣ཯ᛂ㏿ᗘࡢᕪࡀぢࡽࢀ࡞ࡃ࡞ࡗࡓࠋ
 Fig.2 (A)ࠊ(B)࡟ CO2 ⃰ᗘ 67%ࡢ᫬ࡢ 1073-1223 K ࠾ࡼࡧ 873-1023 K ࡟࠾ࡅࡿ㑏ඖ᫬㔜㔞ኚ໬⋡ W ࢆ♧ࡍࠋ1073-1223 K ࡟࠾ࡅࡿ㔜㔞ኚ໬⋡ࡢഴྥ࡟ࡣ኱ࡁ࡞㐪࠸ࡀぢࡽࢀࡎࠊ࠸ࡎࢀࡢ཯ᛂ ᗘ࡟࠾࠸࡚ࡶ⣙ 20 ศ࡛
0.98 ࡜࡞ࡗ࡚࠸ࡓࠋࡑࡢࡓࡵ CO2 ࡟ࡼࡿ㑏ඖ࡛ࡣ Fe3O4 ࡲ࡛㓟໬ࡉࢀࠊࡲࡓ཯ᛂ㏿ᗘࡢ㐪࠸ࡀ࡞࠸ࡇ࡜ࡀศ࠿

74

1.0

ࡗࡓࠋࡑࡢ୍᪉࡛ 873-1023 Kᗘ࡟ࡼࡾ཯ᛂ㏿ᗘࡶ኱ࡁࡃ

ᚋῶᑡࡋࠊ᭱⤊ⓗ࡟ࡣ㧗 ᮲௳࡜ྠᵝ࡟ Fe3O4 ࡢ≧ែ࡟࡞ࡗࡓࠋ୍᪉ 973 K ௨ୗࡢ཯ᛂ

FeO

1073 K

0.9

1123 K
1173 K1223 K
0.8

873 K
923 K
973 K
1023 K

0.8␗࡞ࡗ࡚࠸ࡓࠋ1023 K ࡛ࡣᛴ⃭࡞㔜㔞ቑ኱ࡀぢࡽࢀࠊࡑࡢ

Fe3O4

FeO

0.9

Wt ratio [-]ࡀほ ࡉࢀ࡚࠾ࡾࠊࡲࡓ཯ᛂFe2O3

Wt ratio [-]࡛ࡣ 1073-1223 K ぢࡽࢀࡓ཯ᛂᣲື࡜ࡣ඲ࡃ␗࡞ࡗࡓᣲື

1.0

Fe2O3
Fe3O4

Fe

Fe

(A)

(B)

0.7
0

20

40

60

80

100

0.7
0

20

Time [min]

40

60

80

100

Time [min]Fig.1 Weight change ratio at reduction condition (A)1073-1223 K, (B)873-1223 K

࡟࠾࠸࡚ࡣ཯ᛂ᫬㛫࡜࡜ࡶ࡟(B)㔜㔞ኚ໬⋡ࡀቑ኱ࡋࠊ㓟໬᫬㔜㔞ኚ໬⋡ W ࡣ 1.0 ࢆ኱ᖜ࡟㉸࠼࡚࠸ࡿࠋࡇࡢ཯ᛂࡣ㑏ඖᢸయ࡟ྵࡲࢀࡿ CaO ࡀ CO2 ࡜཯ᛂࡍࡿࡇ࡜࡛ CaO Ⅳ㓟໬཯ᛂࡀ㐍⾜ࡋࡓࡓࡵ࡛࠶ࡿ࡜⪃(A)

࠼ࡽࢀࡿࠋCaO ࡀ CO2 ࡜཯ᛂࡍࡿሙྜ࡟࠾࠸࡚ࡣ CaCO3 ࡀᢸయ⾲㠃࡟ᙧᡂࡉࢀࡿࡓࡵ Fe

Fig.2 Weight change ratio at oxidization condition (A)1073-1223 K, (B)873-1223 K

࡜ CO2 ࡢ཯ᛂࢆ㜼ᐖࡍࡿࡶࡢ
࡜⪃࠼ࡽࢀࡿࠋ
923 K ௨ୗ࡟࠾࠸࡚ࡣ㔜㔞ኚ໬⋡ࡀ 1 ࢆ㉸࠼࡚ࡣ࠸࡞࠸ࡀࠊ
ࡇࢀࡣ཯ᛂ㏿ᗘࡀ㐜࠸ࡓࡵ࡛࠶ࡾࠊ
཯ᛂ᫬㛫ࡢቑ኱࡜࡜ࡶ࡟㓟⣲ᢸయ㔜㔞ࡣ CO2 ࡜ࡢ཯ᛂ࡟ࡼࡾቑ኱ࡍࡿࡶࡢ࡜⪃࠼ࡽࢀࡿࠋࡇࡢࡼ࠺࡟ CO2 ࡢ⃰ᗘࡀ㧗࠸ሙྜ࡟ࡣࠊ཯ᛂ ᗘࡀపࡃ࡞ࡿ࡜࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺ୰ࡢ CaO ࡀ CO2 ࡜཯ᛂࡍࡿࡇ࡜࠿ࡽࠊ཯ᛂ ᗘࢆ㧗 ࡟ࡍࡿᚲせࡀ࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋ
ୖ㏙ࡋࡓࡼ࠺࡟ CO2 ⃰ᗘࡀ㧗࠸ሙྜ࡟ࡣ 1023 K ௨ୗ࡛ CaCO3 ࡢ⏕ᡂ཯ᛂࡀぢࡽࢀࡿࡀࠊCO2 ⃰ᗘࢆపࡃࡍ
ࡿࡇ࡜࡛ప ཯ᛂ᮲௳ୗ࡛ࡶ CaCO3 ࡢ⏕ᡂࡀᢚไࡉࢀࡿࡇ࡜ࡶᙜヱᐇ㦂࡟ࡼࡾ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿࠋࡲࡓࠊ
CaO ࡢⅣ㓟໬ࡀ㐍⾜ࡋ࡞࠸ ᗘᇦ࡟࠾࠸࡚⧞ࡾ㏉ࡋredox ཯ᛂࢆ⾜ࡗ࡚ࡶ཯ᛂ⋡ࡸ཯ᛂ㏿ᗘ࡟࠾࠸࡚ຎ໬ࡣㄆ
ࡵࡽࢀ࡞࠿ࡗࡓࠋXRD ゎᯒ࡟ࡼࡾ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡢ⤖ᬗᵓ㐀࠾ࡼࡧ⾲㠃ᚤ⣽ᵓ㐀࡟ኚ໬ࡀ☜ㄆࡉࢀࡓࡶࡢࡢࠊ⧞ࡾ㏉ࡋ redox ཯ᛂ࡟࠾ࡅࡿ཯ᛂᛶ࡟ࡣ඲ࡃኚ໬ࡀ࡞࠿ࡗࡓࡓࡵࠊ཯ᛂ ᗘ࠾ࡼࡧ཯ᛂ࢞ࢫ⃰ᗘࢆไᚚࡍࡿࡇ࡜࡟ࡼࡾ㏫ࢣ࣑࣮࢝ࣝࣝࣆࣥࢢࣉࣟࢭࢫ࡟࠾࠸࡚ࡶ࢝ࣝࢩ࣒࢘ࣇ࢙ࣛ࢖ࢺࡀ฼⏝ྍ⬟࡛࠶ࡿࡇ࡜ࡀ
♧၀ࡉࢀࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ࣭ Kenji Kamiya, Nobusuke Kobayashi, Ryota Yoshimi, Akira Suami and Yoshinori Itaya, CO2 CO Conversion with
Oxygen Carrier using Fixed Bed Flow Reactor System, International Conference on Materials and Systems for
Sustainability 2019 (IcMass 2019), Nagoya, Japan, 2019 Nov. 1-3.
࣭ Kenji KAMIYA, Nobusuke KOBAYASHI, Yoshinori ITAYA, Akira SUAMI, Study on CO Conversion from CO2
with Oxygen Carrier, 18th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2019),
Sapporo, Japan, 2019, Sep. 23-27.

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77ู⣬ᵝᘧ㸰㸫㸰᳃ᯘࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮฼⏝ィ⏬ᨭ᥼ࡢࡓࡵࡢ᝟ሗᢏ⾡ࢆᛂ⏝ࡋࡓ࣐ࣝࢳࢫࢣ࣮ࣝᣢ⥆ྍ⬟㈨※㈿Ꮡ㔞ホ౯
Assessment of sustainable resource potential in multiple scales to support forest
biomass energy utility planning applying information technology.
⏫ᮧ ᑦ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᯇ஭Ꮥ඾࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ຓᩍ኱ሙ ┿࣭ᅜ❧⎔ቃ◊✲ᡤ࣭♫఍⎔ቃࢩࢫࢸ࣒◊✲ࢭࣥࢱ࣮࣭ᐊ㛗ᯘ ᕼ୍㑻࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ᳃ᯘࣂ࢖࣐࢜ࢫ࢚ࢿࣝࢠ࣮ࡢ฼⏝ࡣ⬺Ⅳ⣲໬࡟ຍ࠼ࠊᆅᇦ㈨※ࡢ᭷ຠά⏝࡟ᐤ୚ࡋࠊᑟධ
ᣑ኱ࡀᮃࡲࢀࡿ୍᪉ࠊ㈨※࡜⎔ቃࡢᣢ⥆ྍ⬟ᛶࢆ⪃៖ࡋࡓィ⏬⟇ᐃࡢᅔ㞴ࡉࡀ㞀ᐖ࡜࡞ࡗ࡚࠸ࡿࠋࡇࡢࡓࡵ࡟ࡣ᳃ᯘࡢᣢࡘከᵝ࡞⏕ែ⣔ࢧ࣮ࣅࢫࢆ⪃៖ࡋࠊᯘศࡈ࡜ࡢ≉ᛶ࡟ᛂࡌࡓ
ᣢ⥆ྍ⬟࡞㈨※฼⏝ࡀᚲせ࡛࠶ࡿࡀࠊᗈᇦ࡛࠾ࡇ࡞ࢃࢀࡿ㈨※㈿Ꮡ㔞ホ౯࡜ᯘศࢫࢣ࣮ࣝ
ࡢ฼⏝ྍ⬟㔞ࡣᚲࡎࡋࡶ୍⮴ࡋ࡞࠸ࠋࡑࡇ࡛ᮏ◊✲ࡣ᝟ሗᢏ⾡ࢆᛂ⏝ࡋࠊᗈᇦ᳃ᯘ㈨※㈿Ꮡ
㔞࡜ᯘศࢫࢣ࣮ࣝᣢ⥆ྍ⬟㈨※฼⏝ྍ⬟㔞ࡢ᥎ィᡭἲࢆ㛤Ⓨࡋࠊᆅᇦ࡟࠾ࡅࡿ᳃ᯘࣂ࢖࢜
࣐ࢫ࢚ࢿࣝࢠ࣮฼⏝ィ⏬⟇ᐃࢆᨭ᥼ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
๓ᖺᗘࡢ㐍ᤖࢆ㋃ࡲ࠼ࠊᮏᖺᗘࡣᯘศࢫࢣ࣮࡛ࣝࡢࣂ࢖࣐࢜ࢫ㈨※ホ౯ᡭἲࡢᨵⰋࢆ
࠾ࡇ࡞ࡗࡓࠋᒱ㜧┴㧗ᒣᕷࡢࣄࣀ࢟ேᕤᯘࠊྠ┴୰ὠᕝᕷࡢࢫࢠேᕤᯘࢆᑐ㇟࡟㑅ᢥࡋࠊ㐣ཤ࡟ほ ࡉࢀࡓ UAV-SfM ࡟ࡼࡿᯘศࡢ 3D Ⅼ⩌ࢹ࣮ࢱࢆ⏝࠸ࠊࣃ࢖ࣉࣔࢹࣝ⌮ㄽࢆᛂ⏝ࡋࡓࣂ࢖࣐࢜ࢫ᥎ᐃࢆヨࡳࡓࠋ
UAV ほ࠿ࡽಶయࡢࣂ࢖࣐࢜ࢫࢆ᥎ᐃࡍࡿ᪉ἲ࡜ࡋ࡚ࠊࣃ࢖ࣉࣔࢹࣝ⌮ㄽ㸦Shinozaki

et al., 1964㸧࠾ࡼࡧࡑࡢ㧗ᮌ࡬ࡢ㐺⏝ࣔࢹ࡛ࣝ࠶ࡿ㟼ຊᏛࣔࢹࣝ㸦Oohata and Shinozaki,
1979㸧ࢆゎᯒⓗ࡟㐺⏝ࡋࠊಶయࡢ CHM (canopy height model)࠿ࡽᖿᮦ✚࠾ࡼࡧᆅୖ㒊ࣂ࢖࣐࢜ࢫࢆ᥎ᐃࡍࡿࣔࢹࣝࢆᨵⰋࡋࡓࠋᮏࣔࢹࣝࡣ UAV ほࡢḞⅬ࡛࠶ࡿᶞᖿ㒊ࡢᐃࢆᚲせ࡜ࡏࡎࠊᶞෙせ⣲ࡢ❧యศᕸ࡜ᶞ㧗ࡢࡳ࠿ࡽࠊಶయࣂ࢖࣐࢜ࢫࢆ᥎ᐃ࡛ࡁࡿࠋ
ᮏᡭἲࡣ(1) ᆅୖ㒊ࢆᶞෙ࡜ᯞୗ࡟ศ๭ࡋ࡚ྛ㔜㔞ࢆᐃ⩏ࠊ(2) CHM ࠿ࡽᆅୖ㒊㔜㔞ࢆᐃᘧ໬ࠊ(3) ᮦ✚࡬ࡢኚ᥮࡜ᶞ✀ᅛ᭷ᐃᩘࡢࣃ࣓࣮ࣛࢱ⤫ྜࠊࡢࢫࢸࢵࣉ࠿ࡽᡂࡿࠋࡉ
ࡽ࡟㸪(4) ᶞෙ㸭ᯞୗẚࡢ⿵ṇ࡜ (5) ᶞෙᐦᗘຠᯝࡢ⿵ṇᚋࠊ᭱⤊ⓗ࡟ḟᘧࢆᚓࡓࠋே ᇲ ିଵ‫ܪ‬ܸ ൌ ܾԢ‫ܣ‬቎ሺܰԢ െ ͲǤͷሻ‫ݖ‬ே Ԣ െ ෍ ‫ݖ‬௜ ൅ ሼ݁‫݌ݔ‬ሺͳሻ െ ͳሽܰԢሺ‫ ܪ‬െ ‫ݖ‬ே Ԣሻ቏ሺ‫ܰܣ‬Ԣሻ଴Ǥହ௜ୀଵ78ࡇࡇ࡛ࠊܸ ࡣᖿᮦ✚ࠊ‫ࡣܪ‬ᶞ㧗ࠊ‫ ࡣܣ‬CHM ࢭࣝࡢ༢఩㠃✚ࠊ݅ ൌ ͳ̱ܰԢࡣᶞ㡬࠿ࡽୗྥࡁ
ࡢ CHM ࢭࣝ␒ྕࠊ‫ݖ‬௜ ࡣ݅ ␒┠ࡢ CHM ࢭࣝࡢᶞ㡬࠿ࡽࡢ㊥㞳ࠊ‫ݖ‬ே Ԣࡣ⿵ṇᶞෙ㛗࡛࠶ࡿࠋܾԢࡣࣃ࣓࣮ࣛࢱ࡛ࠊᶞᖿࡢయ✚ᐦᗘࠊࣂ࢖࣐࢜ࢫᣑ኱ಀᩘࠊ༢఩㠃✚ⴥ㔜㔞࡞࡝࡟ࡼࡾ
ኚ໬ࡍࡿᶞ✀ᅛ᭷ࣃ࣓࣮ࣛࢱ࡛࠶ࡿࠋ
ᮏࣔࢹࣝࢆ㐺⏝ࡋࡓ⤖ᯝࠊᶞ✀࡟ࡼࡾಶయࡢᖿᮦ✚ࢆ RMSE 0.19㹼0.21 m3 ࡢ⢭ᗘ࡛᥎ᐃ࡛ࡁࡓࠋᮏࣔࢹࣝࡣ⤒㦂ⓗࣃ࣓࣮ࣛࢱࡀ 1 ಶ࡛࠶ࡾ࡞ࡀࡽࠊ3 ࣃ࣓࣮ࣛࢱࢆせࡍࡿ᪤Ꮡࣔࢹࣝ㸦ఀ⸨ࡽ, 2011㸧࡜ྠ➼ࡢ᥎ᐃ⢭ᗘࢆ♧ࡋࡓࠋ௒ᚋࠊከࡃࡢࢧ࢖ࢺ࡜ᶞ✀࡛ࠊᛶ⬟ࢆ᳨ドࡍࡿࠋ
ᗈᇦࢫࢣ࣮ࣝࡢࣂ࢖࣐࢜ࢫ᥎ᐃ࡟ࡘ࠸࡚ࠊᯘศࢫࢣ࣮ࣝࡢᑐ㇟ࢧ࢖ࢺࢆྵࡴ㡿ᇦ࡟࠾ࡅࡿྜᡂ㛤ཱྀ࣮ࣞࢲ࣮㸦ALOS2/PALSAR2㸧ࢹ࣮ࢱࢆධᡭࡋࠊᆅୖࢹ࣮ࢱ࡜ࡢẚ㍑ࢆヨ⾜ࡋࡓࠋ」ᩘ೫Ἴ࡟࠾ࡅࡿᚋ᪉ᩓ஘ಀᩘࡢᯘศෆᖹᆒ್࡜᳃ᯘ⡙グ㍕ࡢᯘศᮦ✚࡜ࡢẚ
㍑ࢆ⾜ࡗࡓࡀࠊ᭷ព࡞┦㛵ࡣ↓࠿ࡗࡓࠋᯘศࢫࢣ࣮ࣝ࡟࠾ࡅࡿ UAV-SfM ࠿ࡽྲྀᚓࡋࡓ
Ⅼ⩌ࢹ࣮ࢱ࠿ࡽࣂ࢖࣐࢜ࢫࡢ 3D ✵㛫ᐦᗘศᕸࢆ᚟ඖ࡛ࡁࡿࡓࡵࠊࡇࢀࢆඖ࡟࣐࢖ࢡࣟ
Ἴࡢఏ㐩ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡗ࡚ྜᡂ㛤ཱྀ࣮ࣞࢲ࣮࡟ࡼࡿᚋ᪉ᩓ஘ಀᩘࡢ␲ఝ⏬ീࢆసᡂྍ⬟࡛࠶ࡿࠋ௒ᚋࡢㄢ㢟࡜ࡋ࡚ࠊᯘศᵓ㐀࡟ᑐࡍࡿᚋ᪉ᩓ஘ಀᩘ␲ఝ⏬ീࡢᛂ⟅ࢆศᯒࡍࡿࡇ࡜࡟ࡼࡾࠊྜᡂ㛤ཱྀ࣮ࣞࢲ࣮࡟ࡼࡿᗈᇦࣂ࢖࣐࢜ࢫศᕸࡢ᥎ᐃྍ⬟ᛶ࠾ࡼࡧࡑࡢࣔࢹࣝࢆ᳨ウࡍࡿࡇ࡜࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Fujimoto, A., Haga, C., Matsui, T., Machimura, T., Hayashi, K., Sugita, S., Takagi, H., An
End to End Process Development for UAV-SfM Based Forest Monitoring: Individual Tree
Detection, Species Classification and Carbon Dynamics Simulation. Forests, 10, 680,
doi:10.3390/f10080680 (2019-08).
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ 㧘ᮌὒ᫂, ᯘᕼ୍㑻, ᮡ⏣ᬡ, ⏫ᮧᑦ, UAV-SfM ᢏ⾡ࢆά⏝ࡋࡓ᳃ᯘࡢⅣ⣲ᅛᐃ㔞᥎ィ࡟㛵ࡍࡿ◊✲, ⎔ቃ࢔ࢭࢫ࣓ࣥࢺᏛ఍ 2019 ᖺᗘ➨ 18 ᅇ኱఍, ኱㜰ᕷ (2019-09).
࣭ Machimura, T., Fujimoto, A., Hayashi, K., Sugita, S., Takagi, H., Matsui, T., Estimating Stem
Volume of Coniferous Tree Species from a UAV-SfM Derived Canopy Model: An Applicationof the Pipe Model Theory, ICMaSS2019, Nagoya, Japan (2019-11).
࣭ Takagi, H., Hayashi, K., Machimura, T., Sugita, S., Estimation of Carbon Stock for
Coniferous and Broad-Leaved Forests by Comparing UAV and LIDAR methods,
ICMaSS2019, Nagoya, Japan (2019-11).
࣭ ⏫ᮧᑦ, ⸨ᮏᙬ⳯, ᯘᕼ୍㑻, ᮡ⏣ᬡ, 㧘ᮌὒ᫂, ᯇ஭Ꮥ඾, ࣃ࢖ࣉࣔࢹࣝ⌮ㄽࢆᛂ⏝ࡋࡓ UAV-SfM ࡟ࡼࡿ❧ᮌᮦ✚᥎ᐃἲ, ᪥ᮏ㎰ᴗẼ㇟Ꮫ఍㏆␥ᨭ㒊ㅮ₇ㄽᩥ㞟, 11,
17 (2019-11).
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Goldschmidt2019, Barcelona, Spain, 2019 é 8 Ĕ 19-23 č.
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{Hamamura, N., Okubo, T.,Mitsunobu, S., Microbial Biotransformation of Toxic Metalloids
and Its Bioremediation Potentials, International Conference on Materials and Systems for
Sustainability 2019, ¶²áÏ×,2019 é 11 Ĕ 1'3 č.

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Technical development for the bioelectrochemical promotion of nitrogen fixation.
⢖⏣㈗ᐉ࣭ᅜᅵᢏ⾡ᨻ⟇⥲ྜ◊✲ᡤ࣭ୗỈ㐨◊✲㒊࣭◊✲ᐁ   ᐑ⏣ᗣྐ࣭ྡྂᒇᕷᕤᴗ◊✲ᡤ࣭ࣉࣟࢪ࢙ࢡࢺ᥎㐍ᐊ∦ᒣ᪂ኴ࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ࢩࢫࢸ࣒๰⏕㒊㛛࣭ᩍᤵ➟஭ᣅဢ࣭ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ࢩࢫࢸ࣒๰⏕㒊㛛࣭ຓᩍ㸯㸬◊✲┠ⓗ ࣁ࣮ࣂ࣮࣭࣎ࢵࢩࣗἲ࡟ࡼࡗ࡚Ⳙ኱࡞࢚ࢿࣝࢠ࣮ࢆ࠿ࡅ࡚⏕ᡂࡉࢀ࡚࠸ࡿ࢔ࣥࣔࢽ࢔
ࡣࠊ᪥ᮏ࡛ࡣࡑࡢ࡯࡜ࢇ࡝ࢆ⫧ᩱ࡜ࡋ࡚ᾘ㈝ࡋ࡚࠸ࡿࠋ㏆ᖺࡢỈ⣲㟂せࡢቑຍ࡟ࡼࡾࡑ
ࡢ㈓ⶶࡸ㐠ᦙᢏ⾡࡟ࡘ࠸࡚ࡶ㛤Ⓨࡀ㐍ࢇ࡛࠾ࡾࠊࡑࡢ୰࡛࢔ࣥࣔࢽ࢔ࡀỈ⣲࢟ࣕࣜ࢔࡜
ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࠋຠ⋡ⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂᢏ⾡ࡢ☜❧ࡀᮇᚅࡉࢀ࡚࠾ࡾࠊࡑࡢ୍ࡘ
࡟⏕≀Ꮫⓗ࡞❅⣲ᅛᐃᢏ⾡ࡀ࠶ࡿࠋ⏕≀Ꮫⓗ࡞❅⣲ᅛᐃࡣᕤᴗⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂࣉࣟࢭࢫ࡜ẚ㍑ࡍࡿ࡜㠀ᖖ࡟ᑡ࡞࠸࢚ࢿࣝࢠ࣮ࡢࡳࢆᚲせ࡜ࡋࠊᣢ⥆ྍ⬟࡞㛤Ⓨ࡟ྜࡗ࡚࠸
ࡿࡀࠊ⏕ᡂࡉࢀࡿ࢔ࣥࣔࢽ࢔⃰ᗘࡣ㠀ᖖ࡟పࡃࠊ❅⣲ᅛᐃᚤ⏕≀ࡢάᛶಁ㐍ࡀᚲ㡲࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ⏕≀Ꮫⓗ❅⣲ᅛᐃᢏ⾡ࢆ฼⏝ࡋࡓ᪂ࡓ࡞࢔ࣥࣔࢽ࢔⏕ᡂࢩࢫࢸ࣒ࡢ㛤Ⓨࡢࡓࡵ࡟ᚲせ࡞ᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲࡛ࡣࠊ⎔ቃ୰࠿ࡽ❅⣲ᅛᐃ⳦ࢆ㞟✚ᇵ㣴ࡋࠊ㟁Ꮚఏ㐩≀㉁࡜ࡋ࡚ሗ࿌ࡉࢀ࡚࠸
ࡿᅵተ⏬ศࡢ୍ࡘ࡛࠶ࡿ⭉᳜≀㉁ࣄ࣮࣑ࣗࣥࢆ௓ࡋ࡚㟁Ẽ໬Ꮫⓗ࡟❅⣲ᅛᐃ⬟ࢆಁ㐍ࡉࡏࡿࡇ࡜࡛ࠊ⏕≀Ꮫⓗ࡞࢔ࣥࣔࢽ࢔⏕ᡂᢏ⾡㛤Ⓨࢆ┠ᣦࡋ࡚࠸ࡿࠋᮏᖺᗘࡣࠊỈ⏣ᅵተ࠿ࡽ㞟✚ࡋࡓ❅⣲ᅛᐃ⳦ᇵ㣴≀ࢆ⏝࠸࡚ࠊ␗࡞ࡿ㉳※ࡢࣄ࣮࣑ࣗࣥ࡟ࡘ࠸࡚❅⣲ᅛᐃάᛶࡢຠᯝࢆヨ㦂ࡋࡓࠋ㞟✚࡟౑⏝ࡋࡓ Ashby ᇵᆅࢆᨵⰋࡋࠊᚤ㔞ඖ⣲ࢆྵࡴᇵᆅࢆ⏝࠸ࡓ㝿ࡢάᛶ࡟ࡘ࠸࡚

ᐃࢆ⾜ࡗࡓࠋࡲࡓࠊࣄ࣮࣑ࣗࣥࢆ㟁Ẽ໬Ꮫⓗ࡟㓟໬ࡲࡓࡣ㑏ඖࡋࠊࣄ࣮࣑ࣗࣥࡀ࡝ࡢࡼ࠺࡟ാ࠸࡚❅⣲ᅛᐃάᛶࢆቑຍࡉࡏ࡚࠸ࡿ࠿ࡢ☜ㄆࢆ⾜ࡗࡓࠋ❅⣲ᅛᐃ⳦ᇵ㣴≀ෆ࡟ྵࡲࢀࡿ❅⣲ᅛᐃ㑇ఏᏊ࡟ࡘ࠸࡚࡝ࡢᚤ⏕≀ࡀ࡝ࡢ❅⣲ᅛᐃ㑇ఏᏊࢆ᭷ࡋ࡚࠸ࡿ࠿ࢆᢕᥱࡍࡿࡓࡵ࡟࣓ࢱࢤࣀ࣒ゎᯒࢆ⾜ࡗࡓࠋ Ỉ⏣ᅵተ࠿ࡽࡢ㞟✚ᇵ㣴࡟ࡣ❅⣲ᅛᐃ⳦ࡢᇵ㣴࡟⏝࠸ࡽࢀࡿ Ashby ᇵᆅࢆ౑⏝ࡋࠊྠࡌᅵተ࠿ࡽᢳฟࡋࡓࣄ࣮࣑ࣗࣥࢆῧຍࡋ࡚⥅௦ᇵ㣴ࢆ⾜ࡗ࡚࠸ࡓࠋࡇࡢᇵ㣴≀ࢆ⏝࠸࡚␗࡞ࡿ㉳※ࡢࣄ࣮࣑ࣗࣥῧຍ⣔ࢆసᡂࡋ❅⣲ᅛᐃάᛶࡢಁ㐍ຠᯝࢆ☜ㄆࡋࡓ⤖ᯝࠊヨ㦂࡟⏝࠸ࡓࣄ࣮࣑ࣗࣥ 5 ✀඲࡚࡟࠾࠸࡚ಁ㐍ຠᯝࡀ☜ㄆࡉࢀࡓࠋࡑࡢ㝿ࠊಁ㐍ຠᯝࡢ⛬ᗘࡣࣄ࣮࣑ࣗࣥ࡟ࡼࡗ࡚␗࡞ࡗ࡚࠸ࡓࠋ ❅⣲ᅛᐃ⳦ࡢᇵ㣴࡟⏝࠸ࡽࢀࡿ Ashby ᇵᆅ࡟ࡣከࡃࡢᚤ⏕≀ࡀᚲせ࡜ࡍࡿᚤ㔞ඖ⣲ࡀྵࡲࢀ࡚࠾ࡽࡎࠊቑṪ࡟ࡶไ㝈ࡀ࠿࠿ࡗ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࡇ࡜࠿ࡽࠊSL-10 solution
࡜ vitamin solution ࢆῧຍࡋࡓ Ashby ᇵᆅࢆ౑⏝ࡋࡓ࡜ࡇࢁࠊࣄ࣮࣑ࣗࣥࡢ᭷↓࡟ࡼࡽࡎ82❅⣲ᅛᐃάᛶࡣቑຍࡋࠊࣄ࣮࣑ࣗࣥᏑᅾୗࡢ᪉ࡀ㧗࠸άᛶࢆ♧ࡋࡓࠋࡇࡢࡇ࡜࠿ࡽࠊᚤ
㔞ඖ⣲ࡢ୙㊊ࡀ❅⣲ᅛᐃάᛶࢆᢚไࡋ࡚࠸ࡓࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡾࠊࡉࡽ࡟ࣄ࣮࣑ࣗࣥࡣ
ᚤ㔞ඖ⣲ࡢ౪⤥※࡛ࡣ࡞ࡃάᛶࢆಁ㐍ࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ ࣄ࣮࣑ࣗࣥࡀᮏᙜ࡟㟁Ꮚ౪⤥࡟ࡼࡗ࡚❅⣲ᅛᐃάᛶࢆಁ㐍ࡋ࡚࠸ࡿ࠿࡟ࡘ࠸࡚☜ㄆࢆࡍࡿࡓࡵ࡟ࠊࣄ࣮࣑ࣗࣥࢆ㟁Ẽ໬Ꮫⓗ࡟㓟໬ࡲࡓࡣ㑏ඖࡋ࡚࣮࢝࣎ࣥࣇ࣮ࣜᇵ㣴⣔࡬ῧຍࡍࡿࡇ࡜࡛άᛶಁ㐍ࡢ᭷↓ࢆㄪ࡭ࡓࠋࡑࡢ⤖ᯝࠊ㑏ඖฎ⌮ࢆࡋࡓࣄ࣮࣑ࣗࣥῧຍ⣔࡛ࡣ❅⣲ᅛᐃάᛶࢆ☜ㄆ࡛ࡁࡓࡀࠊ㓟໬ฎ⌮ࢆࡋࡓࡶࡢࡲࡓࡣᮍฎ⌮ࡢࣄ࣮࣑ࣗࣥῧຍ
⣔࡛ࡣ❅⣲ᅛᐃάᛶࡣ☜ㄆࡉࢀ࡞࠿ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽࠊࣄ࣮࣑ࣗࣥࢆ௓ࡋ࡚㟁Ꮚࡀ❅⣲ᅛᐃ⳦࡬࡜౪⤥ࡉࢀ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊⅣ⣲※ࢆྵࡴᇵ㣴⣔࡛ࡣⅣ⣲※ࢆ㓟໬ࡋ࡚ࣄ࣮࣑ࣗࣥࢆ㑏ඖࡍࡿࣄ࣮࣑ࣗࣥ㑏ඖ⳦ࡢᏑᅾࡀ♧၀ࡉࢀࡓࠋ ❅⣲ᅛᐃ⳦ᇵ㣴≀ෆ࡟ྵࡲࢀࡿ❅⣲ᅛᐃ㑇ఏᏊ࡟ࡘ࠸࡚࡝ࡢᚤ⏕≀ࡀ࡝ࡢ❅⣲ᅛᐃ㑇ఏᏊࢆ᭷ࡋ࡚࠸ࡿ࠿ࢆᢕᥱࡍࡿࡓࡵ࡟࣓ࢱࢤࣀ࣒ゎᯒࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࠊ❅⣲ᅛᐃ㑇ఏᏊࡢ୍ࡘ࡛࠶ࡿ nifH ࢆᩘ✀㢮᳨ฟ࡛ࡁࡓࡀࠊሷᇶ㓄ิゎㄞ࡟⏝࠸ࡓࢩ࣮ࢣࣥࢧ࣮
࡟ࡼࡿሷᇶ㓄ิ㛗ࡀ▷ࡃࠊ୙᏶඲࡞ࢤࣀ࣒ᵓ⠏࡛࠶ࡗࡓࡇ࡜࠿ࡽࠊ❅⣲ᅛᐃ⳦ࡢ≉ᐃࡲ࡛࡟ࡣ⮳ࡽ࡞࠿ࡗࡓࠋ
௒ᚋࡢㄢ㢟ࡣ❅⣲ᅛᐃ⳦ࡢ≉ᐃ࡜ࡑࡢᚤ⏕≀ࡢ≉ᛶࢆᢕᥱࡍࡿࡇ࡜ࡀࡲࡎࡣ㔜せ࡛࠶ࡿࡇ࡜࠿ࡽࠊࢩ࣮ࢣࣥࢧ࣮ᶵ✀ࢆኚ࠼࡚ࡼࡾ㛗࠸ሷᇶ㓄ิࢆྲྀᚓࡋࠊྲྀᚓ῭ࡳࡢࢤࣀ࣒ࢹ࣮ࢱ࡜ྜࢃࡏ࡚෌ᗘゎᯒࡍࡿࡇ࡜࡛᏶඲࡞ࢤࣀ࣒ᵓ⠏ࢆヨࡳࡿࡇ࡜࡜ࡍࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Awata T, Mitsushita J, Kasai T, Matsuura N, Katayama A. Nitrogen fixing activity promoted
by humin. International Conference of Materials and Systems for Sustainability 2019
(ICMaSS2019), Nagoya, Japan. 1st~3rd, Nov., 2019.
࣭Dey S, Kasai T, Mitsushita J, Awata T, Katayama A. Acceleration of biological nitrogen
fixation using humin as external electron mediator. International Conference of Materials
and Systems for Sustainability 2019 (ICMaSS2019), Nagoya, Japan. 1st~3rd, Nov., 2019.
࣭Awata T, Mitsushita J, Kasai T, Matsuura N, Katayama A. Promotion of nitrogen
fixing activity of anaerobic consortium using humin. 8th IWA Microbial Ecology andWater Engineering Specialist Conference (MEWE2019), Hiroshima, Japan. 17th~20th,
Nov., 2019.

83ู⣬ᵝᘧ㸰㸫㸰ຠ⋡ⓗ࡞ሷ⣲໬࢚ࢳࣞࣥศゎࢆྍ⬟࡟ࡍࡿ Dehalococcoides mccartyi NIT01 ᰴࡢ⣽⬊ෆศᏊᶵᵓࡢゎ᫂
Molecular mechanism of chloroethene degradation by Dehalococcoides mccartyi NIT01
ྜྷ⏣ዉኸᏊ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭♫఍ᕤᏛᑓᨷ࣭෸ᩍᤵ
∦ᒣ᪂ኴ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗሷ ⣲ ໬ ࢚ ࢳ ࣞ ࣥ 㢮 (CE) ࢆ ↓ ᐖ ࡞ ࢚ ࢳ ࣞ ࣥ (ETH) ࡲ ࡛ 㑏 ඖ ⓗ ࡟ ⬺ ሷ ⣲ ໬ ࡛ ࡁ ࡿ
Dehalococcoides ᒓ⣽⳦(Dhc)ࡣ, ࣂ࢖࣮࢜࢜ࢢ࣓ࣥࢸ࣮ࢩࣙࣥ࡟⏝࠸ࡽࢀࡿ௦⾲ⓗ࡞ᚤ⏕≀࡛࠶ࡿ.୍᪉࡛, 㓟⣲࡟ゐࢀࡿ࡜ኻάࡍࡿ⤯ᑐ᎘Ẽᛶᚤ⏕≀࡛࠶ࡿࡓࡵ, ༢⊂࡛኱㔞ᇵ㣴ࡍࡿࡇ࡜ࡀ㞴ࡋࡃ, ⣧⢋ᇵ㣴≀ࢆ⏝࠸ࡓᆅୗỈί໬ࡣ⾜ࢃࢀ࡚࠸࡞࠸.ᮏ◊✲࡛ࡣᙜ◊✲ᐊ࡛ศ㞳ࡋࡓ D. mccartyi NIT01 ᰴࢆ⏝࠸࡚ 7.2 L ࢫࢣ࣮࡛ࣝࡢᇵ㣴ࡋ, ཯ᛂ㏿ᗘᘧࢆ⏝࠸࡚ィ⟬್࡜ᐇ㦂್ࢆẚ㍑ࡋ, ศゎ࡜⳦యࡢືែண

ࢆヨࡳࡓ.ࡉࡽ࡟ࠊᚓࡽࢀ

ࡓ⣽⬊࣌ࣞࢵࢺ࠿ࡽ⬺ሷ⣲໬㓝⣲ࡢᢳฟ࣭⢭〇ࢆヨࡳࡓ.
㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ࣅ࢔ᶡࢆ⏝࠸ࡓ 1,7 ᰴࡢ኱㔞ᇵ㣴
NIT01 ᰴࡣ, 11.6 L ᐜ✚ࡢࣅ࢔ᶡࢆ⏝࠸࡚ᇵ㣴ࡋࡓ.↓ᶵሷᇵᆅ࡟Ⅳ⣲※࡜ࡋ࡚㓑㓟, 㟁Ꮚཷᐜయ࡜ࡋ࡚ࢺࣜࢡ࢚ࣟࣟࢳࣞࣥ(TCE)ࢆῧຍࡋࡓ.ࡑࡢᚋ NIT01 ᰴࡢᇵ㣴≀ 1.2L ࢆ᥋✀ࡋႏ᎘Ẽ᮲௳࡛㟼⨨ᇵ㣴ࡋࡓ. 11 ᅇᇵ㣴ࢆヨࡳࡓ࡜ࡇࢁ, ῧຍࡋࡓ TCE ࡀ ETHࡲ࡛⬺ሷ⣲໬ࡉࢀࡓᡂຌᅇᩘࡣ 5 ᅇ࡛࠶ࡗࡓ.⬺ሷ⣲໬ࡀ, ῧຍ㔞ࢆ኱ᖜ࡟㉸㐣ࡋࡓ
TCE ࡀ᳨ฟࡉࢀࡓࡇ࡜࠿ࡽ, ࣅ࢔ᶡෆ㒊࡟㓄⨨ࡉࢀࡓࢫࢸࣥࣞࢫ⟶ෆ࡟๓ᇵ㣴≀࠿ࡽᣢࡕ㉺ࡉࢀࡓ TCE ࡀṧᏑࡋᇵ㣴ࢆ㜼ᐖࡋࡓ࡜⪃࠼ࡽࢀࡿ.
1,7 ᇵ㣴᫬ࡢ &(࣭⳦యࡢືែண



NIT01 ᰴࡢఇṆ⳦యࢆ⏝࠸࡚, ␗࡞ࡿCE ⃰ᗘ࡟࠾ࡅࡿ⬺ሷ⣲໬㏿ᗘࢆ ᐃࡋ
ࡓ.ࡇࡢ⤖ᯝࢆ᭱ᑠ஧஌ἲ࡟ࡼࡗ࡚⮬ᕫ㜼ᐖࢆ⪃៖ࡋࡓ࣑࢚࢝ࣜࢫ࣭࣓ࣥࢸࣥᘧ
࡟ࣇ࢕ࢵࢸ࢕ࣥࢢࡋ, ཯ᛂ㏿ᗘᐃᩘࢆỴ
ᐃࡋࡓ.ቑṪ཰⋡㹗ࡣ, CE ⬺ሷ⣲໬࡟ࡼࡾ㐟㞳ࡋࡓ Cl- ⃰ᗘኚ໬࠶ࡓࡾࡢ⣽⬊ᐦᗘኚ໬ࢆ⥺ᙧ㏆ఝࡋࡓ㝿ࡢഴࡁ࡟ࡼࡾ
⟬ฟࡋࡓ.Ỵᐃࡋࡓࣃ࣓࣮ࣛࢱࢆ⏝࠸࡚,CE ศゎ࡞ࡽࡧ࡟⣽⬊ቑṪࡢண ィ⟬ࢆ⾜࠸, ィ⟬್࡜ᐇ㦂್ࢆẚ㍑᳨ドࡋࡓ.
␗࡞ࡿ CE ⃰ᗘ࡟࠾ࡅࡿ⬺ሷ⣲໬㏿ᗘᅗ  ࢩ࣑࣮ࣗࣞࢩࣙࣥ⤖ᯝ$&O⃰ᗘ%⣽⬊ᐦᗘ ࢆࣇ࢕ࢵࢸ࢕ࣥࢢࡋࡓ⤖ᯝ཯ᛂ㏿ᗘᐃᩘࡣ཰᮰ࡋࡓ.ࣅ࢔ᶡᇵ㣴࡟࠾ࡅࡿቑ

84Ṫ཰⋡:Y =4×107 cells/μmol ࡣ୍⯡ⓗ࡞ Dhc ࡢቑṪ཰⋡:107-108 cells/μmol ࡜ẚ㍑ࡋ࡚࠾࠾ࡴࡡ୍⮴ࡋ࡚࠸ࡿࡇ࡜࠿ࡽ, ṇࡋ࠸್ࡀᚓࡽࢀࡓ࡜⪃࠼ࡽࢀࡿ. ཯ᛂ㏿ᗘᐃᩘ࡞ࡽࡧ
࡟ቑṪ཰⋡ࢆ⏝࠸࡚, ⬺ሷ⣲໬ࢩ࣑࣮ࣗࣞࢩࣙࣥࢆ⾜ࡗࡓ࡜ࡇࢁ, ᅗ 1 ࡟♧ࡍ⤖ᯝࢆᚓࡓ.⣽⬊ᐦᗘࡣィ⟬್࡜ᐇ㦂್ࡣᴫࡡ୍⮴ࡋ࡚࠾ࡾ, ཯ᛂ㏿ᗘᘧࢆ⏝࠸࡚ࢩ࣑࣮ࣗࣞࢩ
ࣙࣥྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓ.୍᪉࡛ሷ໬≀࢖࢜ࣥ⃰ᗘࡣ୍⮴ࡏࡎ, ⌧ᅾཎᅉࢆ᳨ウ୰࡛࠶ࡿ.
 1,7 ᰴ࠿ࡽࡢ⬺ሷ⣲໬㓝⣲ࡢᢳฟ࣭⢭〇ࣅ࢔ᶡᇵ㣴࠿ࡽᅇ཰ࡋࡓ 0.78g ࡢᅇ཰࣌ࣞࢵࢺ࡟ࡘ࠸࡚㉸㡢Ἴ◚○ࡋ⣽⬊ṧ´ࡢ㝖ཤᚋ࡟㉸㐲ᚰศ㞳㸦200,000g, 4Υ, 1 ᫬㛫㸧ࡋࡓࡶࡢࢆ⭷⏬ศ࡜ࡋ࡚ 1㸣DDM ⁐ᾮ࡟⁐ゎ㸦᣺࡜࠺ᶵ࡛ 30 ศ㛫㸧ࡋࡓࠋࡇࢀࢆ㉸㐲ᚰศ㞳㸦200,000g ,4Υ,1 ᫬㛫㸧ࡋ, ᚓࡽࢀࡓୖΎࢆ⭷⏬ศᢳฟᾮ࡜ࡋࡓࠋࡇࡢ⭷⏬ศᢳฟᾮࢆ࢔࣑ࢥࣥ࢘ࣝࢺࣛ㸦㐲ᚰ 14,000g,4Υ,10 ศ㛫㸧ࢆ⏝࠸࡚⃰⦰ࡋᚋ, ࢔ࢽ࢜ࣥ஺᥮ᶞ⬡࣒࢝ࣛ㸦MonoQ㸧ࢆ⏝࠸ᾮయࢡ࣐ࣟࢺࢢࣛࣇ࢕࣮ศ㞳ࡋࣇࣛࢡࢩࣙࣥࢥࣞࢡࢱ࣮࡛ศྲྀ⢭〇ࡋࡓࠋྛศྲྀヨᩱ࡟ࡘ࠸࡚
⬺ሷ⣲໬άᛶࢆ

ᐃࡋࡓ⤖ᯝ, 」ᩘࡢࣇࣛࢡࢩ࡛ࣙࣥሷ⣲໬࢚ࢳࣞࣥࡢ⬺ሷ⣲໬άᛶࡀほᐹࡉࢀࡓ.ࡇࢀࡽࡢヨᩱ࡟ࡘ࠸࡚ SDS-PAGE ࢆ⾜ࡗࡓ࡜ࡇࢁ, άᛶࡀほᐹࡉࢀࡓ 4ࡘࡢࣇࣛࢡࢩ࡛ࣙࣥ Rdh ࡢศᏊ㔞㸦46-55kD㸧ࡢࣂࣥࢻࡀぢࡽࢀࡓ㸦ᅗ 2㸧ࠋࡇࢀࡼࡾ,
ᮏ᪉ἲ࡛ศ㞳⃰⦰ྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࡀ, 」ᩘࡢࣂࣥࢻࡀࡲࡔほᐹࡉࢀࡿࡓࡵ,ࡉࡽ࡟⢭〇ࢆ㐍ࡵࡿ.
ᮏᐇ㦂࡛」ᩘࡢ㞳ࢀࡓࣇࣛࢡࢩࣙࣥ࠿ࡽ⬺ሷ⣲໬άᛶࡀほᐹࡉࢀࡓࡇ࡜ࡣ, NIT01 ᰴ࡛ࡣ」ᩘࡢ RdhA ࡀሷ⣲໬࢚ࢳࣞࣥࡢ⬺ሷ⣲໬ࢆᢸ࠺ࡇ࡜ࢆ♧၀ࡍࡿࡶࡢ࡛࠶ࡿ.ࡇࢀ
ࡣᡃࠎࡀ௨๓࡟Ⓨ⾲ࡋࡓ NIT01 ᰴ࡟࠾࠸࡚ 4 ✀ࡢ RdhA (dhA6, 8, 12, 16)ࡀ㌿෗ㄏᑟࡉࢀ
ࡿ⤖ᯝࢆᨭᣢࡍࡿࡶࡢ࡛࠶ࡾ, ௒ᚋ SDS-PAGE ࣂࣥࢻࡢ㹋S ศᯒ࡟ࡼࡾ RdhA ࢆྠᐃࡍࡿࡇ࡜ࢆヨࡳࡿ.

ᅗ  'PFFDUW\L1,7 ᰴࡢ 5GK$ ᢳฟ≀ࡢ 6'63$*( ീ85ู⣬ᵝᘧ㸰㸫㸰ࢲࢡࢺෆ✵Ẽὶࢀ࡟࠾ࡅࡿỈᄇ㟝㉁ࡢᣑᩓ࡜⵨Ⓨ࡟㛵ࡍࡿ◊✲
Study on Diffusion and Evaporation of Micro Mist Introduced in Duct Air Flow◊✲௦⾲⪅ 㛗㇂ᕝ ㇏࣭ྡྂᒇᕤᴗ኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ᩍᤵ◊✲ศᢸ⪅ ∵ᓥ 㐩ኵ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵ         బ⸨ 㞝ኴ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬ 1 ᖺụ⏣ 㐶୍࣭ྡྂᒇᕤᴗ኱Ꮫ࣭ ᕤᏛ㒊 ࣭Ꮫ㒊 1 ᖺ◊✲ᡤᢸᙜᩍဨ ᑠᓥ ⩏ᘯ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ศᩓᆺᑠᆺ㟁※ࡢ୰࡛㸪⎔ቃ㈇Ⲵࡢᑡ࡞࠸࣐࢖ࢡࣟ࢞ࢫࢱ࣮ࣅࣥࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪࣐࢖ࢡࣟ࢞ࢫࢱ࣮ࣅࣥࡢ⥲ฟຊࡢ 30~50㸣ࡣᅽ⦰ᶵࡢᅽ⦰௙஦࡜ࡋ࡚౑ࢃࢀ࡚࠾ࡾ㸪Ⓨ㟁ຠ⋡ࡢపࡉࡀၥ
㢟࡜࡞ࡗ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪࣐࢖ࢡࣟ࢞ࢫࢱ࣮ࣅࣥࡢຠ⋡ࢆᨵၿࡍࡿࡓࡵ࡟㸪㐲ᚰᅽ⦰ᶵ࡟Ỉᄇ㟝෭༷ἲࢆ㐺⏝ࡋ᭷⏝ᛶࢆㄪ࡭࡚࠸ࡿ㸬ᮏ◊✲ࡢ┠ⓗࡣᮏ෭༷ࢩࢫࢸ࣒ࡢከᩘࡢ✵ẼᶵᲔ࡟ᑐࡍࡿ᭷⏝ᛶࢆ᳨ド࡛ࡁࡿࣉࣟࢢ࣒ࣛࡢᵓ⠏࡛࠶ࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲ࡣ࣐࢖ࢡࣟ࢞ࢫࢱ࣮ࣅࣥ(௨ୗ MGT)ࡢⓎ㟁ຠ⋡ᨵၿࡢࡓࡵ࡟㸪Ỉᄇ㟝෭༷ἲࢆ⏝࠸ࡓゎᯒࣉࣟࢢ࣒ࣛࡢᵓ⠏ࢆ┠ⓗ࡜ࡋ࡚࠸ࡿ㸬ᮏᖺᗘࡣ MGT ࡢධཱྀ෭༷࡟࠾ࡅࡿ㸪ࢲࢡࢺෆỈᄇ㟝㉁ὶࢀࡢᣲືࢆࣉ
ࣟࢢ࣒ࣛࡢᵓ⠏࡟㐺⏝ࡍࡿࡓࡵ࡟㸪Ỉᄇ㟝㉁ࡢὶ㏿ศᕸࢆᐇ㦂ⓗ࡟ㄪᰝࡋࡓ㸬 ᅗ 1 ࡟ᮏᐇ㦂࡛౑⏝ࡍࡿࢲࢡࢺࡢᴫ␎ࢆ♧ࡍ㸬ࡇࡇ࡛㸪Ỉᄇ㟝㉁ᑟධ఩⨨ࡢ᩿㠃୰ኸࢆཎⅬ࡟㸪ὶࢀ᪉ྥࢆ z㸪㖄┤᪉ྥࢆ y㸪ᖜ᪉ྥࢆ x ㍈࡜ࡍࡿ㸬▴ᙧࢲࢡࢺ࠿ࡽ࡞ࡿỈᄇ㟝㉁ᑟධ㒊ࡢᗏ㠃࡟ࡣ㸪㉸㡢Ἴ᣺ືᏊࡀタ⨨ࡋ࡚࠶ࡿ㸬࣏ࣥࣉ࡟ࡼࡾࢲࢡࢺୗ㒊࡟Ỉࢆᚠ⎔ࡉࡏ㸪ሖ࡟ࡼࡾỈ㠃఩⨨ࡀ㉸㡢Ἴ᣺ືᏊࡢ
ࢲ࢖ࣖࣇ࣒ࣛ㠃࠿ࡽᖖ࡟ 30mm ࡟࡞ࡿࡼ࠺࡟Ỉ఩ࢆ୍ᐃ࡟ಖࡗ࡚࠸ࡿ㸬ᮏᐇ㦂࡛ࡣỈᄇ㟝㉁ࡢὶ㏿ࡢᐃ࡟ࡣ PIV ࢆ⏝࠸ࡓ㸬⾲ 1 ࡟ᐇ㦂᮲௳ࢆ♧ࡍ㸬ὶ㏿ࡢ ᐃࡣࢲࢡࢺෆὶ㊰᪉ྥ࠾ࡼࡧὶ㊰᪉ྥ࡟ᆶ┤࡞᩿㠃ࡢィ ࢆ⾜ࡗࡓ㸬⾲ 1 ᐇ㦂᮲௳    ᅗ 1 Ỉᄇ㟝㉁ᑟධ㒊㢼㏿

0.96[m/s]ࣇ࣮࣒࣮ࣞࣞࢺ

500[fps]ࣇ࣮࣒ࣞࡢ኱ࡁࡉ

640480[pixel]ゎീᗘ⣙ 0.3[mm/pixel]᳨ᰝ㡿ᇦ3232[pixel]᥈ᰝ㡿ᇦ6464[pixel]᧜ᙳ᫬㛫⣙ 10[s] ᅗ 2 ࡟ὶࢀ᪉ྥࡢࢲࢡࢺ୰ኸ(2x/W=0)࡟࠾ࡅࡿỈᄇ㟝㉁ࡢὶ㏿ศᕸࢆ♧ࡍ㸬ࡇࡇ࡛㸪ὶࢀ᪉ྥ㸪㖄┤᪉ྥࡣࢲࢡࢺෆ㧗ࡉ H ࡛㸪ᖜ᪉ྥࡣࢲࢡࢺෆᖜ W ࡛㸪㏿ᗘ࡟ࡘ࠸࡚ࡣ᮲௳㢼㏿(0.96[m/s])࡛↓ḟඖ໬ࡋ࡚࠸ࡿ㸬ྠᅗࡣ z/H=0.661㸪1.51㸪2.36㸪3.20㸪4.05 ࢆ୰ᚰ࡜ࡋ࡚s0.8 ࡢ⠊ᅖࢆᐃࡋࡓ⤖ᯝࢆ㔜ࡡྜࢃࡏ࡚
86࠸ࡿࡓࡵ㸪⥅ࡂ┠ࡀᏑᅾࡍࡿ㸬ࡲࡓ㸪ࢲࢡࢺୖ㒊ࡣỈᄇ㟝㉁ࡢ⃰ᗘࡀపࡃ㸪ほ ࡣ࡛ࡁ࡚࠸࡞࠸㸬ᐇ㦂⤖ᯝࡼࡾ㸪Ỉᄇ㟝㉁ࡢὶ㏿ࡣỈᄇ㟝㉁ᑟධ㒊࡛ࡣప㏿࡛࠶ࡾ㸪z/H=0.661~1.51 ࡟࠿ࡅ࡚ຍ㏿ࡀ཰᮰ࡋ࡚࠸ࡿ
ࡇ࡜ࡀศ࠿ࡿ㸬ࡲࡓ 2y/H=0 ࡟࠾࠸࡚ὶ㏿ࡀ኱ࡁࡃ࡞ࡗ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ᅗ 2 ࢲࢡࢺ୰ኸ(2x/W=0)࡟࠾ࡅࡿỈᄇ㟝㉁ࡢ㏿ᗘศᕸ ᅗ 3 ࡟ z/H=4.05 ࡟࠾ࡅࡿࢲࢡࢺෆὶࢀ᪉ྥ࡟ᆶ┤࡞᩿㠃ࡢ㏿ᗘศᕸࢆ♧ࡍ㸬ࡇࡇ࡛ࡶ㏿ᗘࡣ㸪୺ὶ᪉ྥᖹᆒ㢼㏿࡟ࡼࡾ↓ḟඖ໬ࡋ࡚࠶ࡿ㸬ྠᅗ࡟⾲ࡍ ᐃ㡿ᇦࡣ㸪2y/H=㸫1.0~0 ࡛࠶ࡿ㸬ࢲࢡࢺෆࡢྠ఩⨨(2x/W=0.5)࡟࠾ࡅࡿᐇ㦂࡜ゎᯒ࡟ࡘ࠸࡚㸪ධཱྀ✵Ẽ࡟ᑐࡍࡿ⤯ᑐ‵ᗘቑຍ㔞ࢆᅗ 4 ࡟㸪✵Ẽᗘపୗ㔞ࢆ

ᅗ 5 ࡟♧ࡍ㸬ᅗ 3 ࡟࠾࠸࡚㸪≉࡟᩿㠃ࢧ࢖ࢻ㒊ศ࡟࠾࠸࡚㸪ୖ᪉ࡢỈᄇ㟝㉁ࡀୗ᪉࡬ỿ㝆ࡋ࡚࠸ࡃὶࢀࡀほࡉࢀࡓ㸬ᅗ 4㸪ᅗ 5 ࠿ࡽ≉࡟ࢲࢡࢺୗ㒊࡟࠾࠸࡚ゎᯒࡼࡾࡶᐇ㦂ࡢ᪉ࡀ⤯ᑐ㉁㔞ࡀቑຍࡋ࡚࠾ࡾ㸪࠿ࡘ✵Ẽ ᗘࡀపୗࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡇࢀࡣᅗ 3 ࠿ࡽぢ࡚ྲྀࢀࡿỈᄇ㟝㉁ࡢỿ㝆ࡀゎᯒࣉࣟࢢࣛ
࣒࡟཯ᫎࡉࢀ࡚࠸࡞࠸ࡓࡵ࡜⪃࠼ࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ᅗ 3 ᩿㠃ෆ㏿ᗘศᕸ        ᅗ 4 ⤯ᑐ‵ᗘኚ໬㔞     ᅗ 5 ✵Ẽᗘኚ໬㔞 ௨ୖࡢ⤖ᯝ࠿ࡽ㸪Ỉᄇ㟝㉁ࡢᣲື࡟ࡘࡁ㸪ゎᯒࣔࢹࣝ࡜ᐇ⌧㇟࡜ࡢ㛫࡟ᕪ␗ࡀぢࡽࢀࡿࡇ࡜ࡀศ࠿ࡗ
ࡓ㸬ḟᖺᗘࡣᐇ㦂࡛ᚓࡽࢀࡓ⤖ᯝࢆࣉࣟࢢ࣒ࣛ࡟཯ᫎࡋ㸪ࡼࡾ⢭ᗘࡢ㧗࠸ゎᯒࢆ⾜࠺ணᐃ࡛࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼ヱᙜ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼௨ୗࡢ㸯௳࣭ Y. Sato, Y. Hasegawa, Y. Kojima, T. Ushijima, K. Nishiyama, Study on Diffusion and Evaporation of Micro Mist
Introduced in Duct Air Flow, ICMaSS2019, Nagoya Univ., 2019. 11. 1㹼11. 3.
㸺⏘ᴗ㈈⏘ᶒ㸼ヱᙜ࡞ࡋ87ู⣬ᵝᘧ㸰㸫㸰㉸పᾘ㈝㟁ຊ↓⥺㏻ಙࢩࢫࢸ࣒࡟ྥࡅࡓཷಙ࢔ࣥࢸࢼ
Receive antennas for super low power consumption wireless systems㰻⸨ᑗே࣭⌰⌫኱Ꮫ࣭ᕤᏛ㒊࣭෸ᩍᤵᮧᒣ኱௓࣭⌰⌫኱Ꮫ࣭⌮ᕤᏛ◊✲⛉࣭༤ኈㄢ⛬๓ᮇㄢ⛬ 2 ᖺDavid Lagu Bernard Alimo࣭⌰⌫኱Ꮫ࣭⌮ᕤᏛ◊✲⛉࣭༤ኈㄢ⛬๓ᮇㄢ⛬ 2 ᖺᒸ⏣ၨ࣭ྡྂᒇ኱Ꮫ࣭ࢩࢫࢸ࣒๰ᡂ㒊㛛࣭෸ᩍᤵ㸯㸬◊✲┠ⓗᮏ◊✲ࡣ㸪↓⥺㏻ಙࢩࢫࢸ࣒࡟⏝࠸ࡽࢀࡿཷಙ࢔ࣥࢸࢼࡢ┬㟁ຊ໬࡟㛵ࡍࡿ◊✲࡛࠶ࡿ㸬ᐊෆ㏻ಙࡸ⛣ືయ㏻ಙ࡛ࡣ㸪↓ᩘࡢಙྕࡀཷಙ࢔ࣥࢸࢼ࡟฿᮶ࡋ࡚࠸ࡿࡀ㸪⌧≧ࡣࡑࢀࡽࡀࣛࣥࢲ࣒࡟㊊ࡋྜࢃࡉࢀࡓᚋࡢಙྕࢆ฼
⏝ࡋ࡚࠸ࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡇࢀࡽከᩘࡢಙྕࢆྠ఩┦࡛ྜᡂࡍࡿཷಙ࢔ࣥࢸࢼࢩࢫࢸ࣒ࡢᐇ⌧ࢆ┠ⓗ࡜ࡍࡿ㸬ࡇࢀ࡟ࡼࡾ㸪฿᮶ಙྕࡢཷಙ㟁ຊࡀᚤᙅ࡛࠶ࡗ࡚㸪ᚑ᮶ࡢ᪉ἲ࡛ࡣ㏻ಙ୙ྍ⬟࡞⎔ቃ࡛࠶ࡗ࡚ࡶ㸪ᮏ࢔ࣥࢸࢼࢩࢫ
ࢸ࣒࡟ࡼࡿ኱ᖜ࡞฼ᚓ࡟ࡼࡾ㸪㏻ಙࢆྍ⬟࡜ࡉࡏࡽࢀࡿ㸬ຍ࠼࡚㸪ᮏ࢔ࣥࢸࢼࢩࢫࢸ࣒࡟ࡼࡾ㸪ᡤせရ㉁ࢆ‶㊊ࡍࡿࡓࡵ࡟ᚲせ࡞ཷಙಙྕ㟁ຊࢆ኱ᖜ࡟పῶࡋ㸪⌧≧ࡢ↓⥺㏻ಙࢩࢫࢸ࣒ࢆࡼࡾ┬㟁ຊ࡛฼⏝ྍ⬟࡜ࡍࡿࡇ࡜ࢆ
┠ⓗ࡜ࡍࡿ㸬

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࢔ࣥࢸࢼࣃࢱ࣮ࣥࢆ࿘ᮇⓗ࡟ኚ໬ࡉࡏ㸪࡞࠾࠿ࡘ㸪1 ࿘ᮇ᫬㛫ୖ࡛஫࠸࡟┤஺ࡍࡿ᫬㛫Ἴᙧࡢ㔜␚࡟ࡼࡾᵓᡂࡍ
ࡿ࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ᢏ⾡ࢆᥦ᱌ࡋࡓ㸬ᥦ᱌ᢏ⾡ࢆ⏝࠸ࡓሙྜ࡟࠾ࡅࡿཷಙಙྕࡢᐃᘧ໬ࢆ⾜࠸㸪ຍ࠼࡚㸪㏻
ಙᐜ㔞ࡢᘧࢆᑟฟࡋࡓ㸬ィ⟬ᶵࢩ࣑࣮ࣗࣞࢩࣙࣥ࡟ࡼࡾ㸪Multiple-Input Multiple-Output (MIMO)ࢩࢫࢸ࣒ࡢཷಙᶵ
࡟ᥦ᱌ᢏ⾡ࢆ⏝࠸㸪࣐ࣝࢳࣃࢫࣇ࢙࣮ࢪࣥࢢ⎔ቃ࡟࠾ࡅࡿ㏻ಙᐜ㔞ࢆồࡵࡓ㸬ᩘ್౛࡟ࡼࡾ㸪฿᮶ࣃࢫᩘࡀቑຍ
ࡍࡿ࡜㏻ಙᐜ㔞ࡀቑຍࡍࡿࣃࢫࢲ࢖ࣂ࣮ࢩࢳ฼ᚓࡀᚓࡽࢀࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ࡲࡓ㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥࡢከ
㔜ᩘࢆቑຍࡍࡿࡇ࡜࡟ࡼࡗ࡚ࡶ㏻ಙᐜ㔞ࡀᨵၿࡍࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓ㸬ࡇࢀࡣ㸪ᚑ᮶ࡢཷಙ࢔ࣥࢸࢼࢆቑຍࡍ
ࡿࡇ࡜࡟ࡼࡾᚓࡽࢀࡿࢲ࢖ࣂ࣮ࢩࢳ฼ᚓ࡟┦ᙜࡍࡿ㸬ຍ࠼࡚㸪࢔ࣥࢸࢼ࡟฿᮶ࡍࡿཷಙ㟁ຊࡀ඘ศ኱ࡁ࠸ሙྜ㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥᩘࢆ M ಶ⏝ពࡍࡿ࡜㸪㏻ᖖࡢ஫࠸࡟⊂❧ࡋࡓཷಙ࢔ࣥࢸࢼࢆ M ಶタ⨨ࡋࡓሙྜ࡜ྠᵝࡢ㏻ಙᐜ㔞ࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ᥦ᱌ᢏ⾡࡟࠾࠸࡚㸪ྛ࢔ࣥࢸࢼࣃࢱ࣮ࣥࢆ⤒㦂ࡋࡓཷಙಙྕࡣ㸪࢔ࣥࢸࢼฟຊ᫬Ⅼ࡛㔜␚ࡉࢀ࡚࠸ࡿࡓࡵ㸪࢔ࣥࢸࢼ࡜ཷಙᶵࢆ᥋⥆ࡍࡿࢣ࣮ࣈࣝ㸦ఏ㏦⥺㊰㸧ࢆ 1 ᮏ࡛῭ࡲࡏࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ࡇࡢࡇ࡜࠿ࡽ㸪ᚑ᮶ࡢ MIMOཷಙᶵ࡟ᑐࡋ࡚㸪ࢣ࣮ࣈࣝᩘࢆ 1/M ಸ࡟๐ῶࡍࡿࡇ࡜ࡀྍ⬟࡜࡞ࡿ㸬ࡲࡓ㸪࢔ࣥࢸࢼࢣ࣮ࣈࣝࡢタ⨨㠃✚ࡸᰯṇࢥࢫࢺࡶྠᵝ࡟๐ῶྍ⬟࡛࠶ࡿ㸬࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ᢏ⾡࡟ࡼࡿ㸪ཷಙ࢚ࢿࣝࢠ๐ῶຠᯝ࡟ࡘ࠸࡚㸪㏻ಙᐜ㔞ࡢほⅬ࠿ࡽホ౯ࡋࡓ㸬ḟ࣮࣌ࢪࡢᅗࡣ㸪ᥦ᱌ᢏ⾡ࢆ⏝࠸ࡓ MIMO ཷಙ࡟࠾ࡅࡿ࢔ࣥࢸࢼࣃࢱ࣮ࣥᙜࡓࡾࡢᖹᆒ SNR ࡟ᑐࡍࡿ㏻ಙᐜ㔞ࢆ⾲ࡍ㸬࢔ࣥࢸࢼࣃࢱ࣮ࣥࡢᩘࡣ 8 ࡜ࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ẚ㍑ࡢࡓࡵ㸪ᚑ᮶ࡢ MIMO ࢩࢫࢸ࣒࡟࠾࠸࡚㸪㏦ಙ࢔ࣥࢸࢼᩘࢆ
2㸪ཷಙ࢔ࣥࢸࢼᩘࢆ 1, 2, 8 ࡜ኚ࠼ࡓ 21 MISO㸪22 MIMO㸪28 MIMO ࡢ㏻ಙᐜ㔞ࢆ♧ࡋࡓ㸬Np ࡣ฿᮶ࣃࢫ

88ᩘࢆ⾲ࡍ㸬๓㏙ࡢ㏻ࡾ㸪ࣃࢫᩘࡢቑຍ࡟ࡼࡾ㸪㏻
ಙᐜ㔞ࡀቑຍࡋ㸪㏻ᖖࡢ 28 MIMO ࡛ᚓࡽࢀࡿ್
࡟₞㏆ࡍࡿࡇ࡜ࡀศ࠿ࡿ㸬୍᪉㸪ᡤᐃࡢ㏻ಙᐜ㔞ࢆᚓࡿࡓࡵ࡟ᚲせ࡞ཷಙ SNR㸦ཷಙ࢚ࢿࣝࢠ࡟┦ᙜ㸧ࢆᚑ᮶ࡢ 22 MIMO ࡜ẚ㍑ࡍࡿ࡜㸪ᡤせ㏻ಙ
ᐜ㔞ࡀ 5 bit/s/Hz ࠾ࡼࡧ 10 bit/s/Hz ࡢ᫬㸪7 dB ࡢ㸪ᡤせ㏻ಙᐜ㔞ࡀ 15 bit/s/Hz ࡢ᫬㸪8 dB ࡢཷಙ࢚ࢿ
ࣝࢠ๐ῶຠᯝࡀᚓࡽࢀࡿࡇ࡜ࡀศ࠿ࡿ㸬ࡇࡇ࡛㸪2
2 MIMO ࡣ㸪࢔ࣥࢸࢼ࡟ಀࡿࣁ࣮ࢻ࢙࢘࢔ࢥࢫ
ࢺࡢ㠃࡛࡯ࡰྠ➼࡛࠶ࡿ㸬ࡇࡢࡼ࠺࡟㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ᢏ⾡࡟ࡼࡾ㸪ࣁ࣮ࢻ࢙࢘࢔ࢥࢫࢺ㸦୺࡜ࡋ࡚㸪࢔ࣥࢸࢼタ⨨㠃✚࣭య✚࡜ࢣ࣮ࣈࣝᩘ㸧ࢆ࡯࡜ࢇ࡝ቑຍࡉࡏࡿࡇ࡜࡞ࡃ㸪࢔ࣥࢸࢼࣃࢱ࣮
ࣥᩘ࡟ᛂࡌ࡚㏻ಙᐜ㔞ࢆቑຍࡉࡏࡽࢀࡿ࡜࠸࠺⤖ᯝࡀᚓࡽࢀࡓ㸬ලయⓗ࡞࢔ࣥࢸࢼࣃࢱ࣮ࣥ⏕ᡂ᪉ἲ࡜ࡋ࡚㸪3 ⣲Ꮚ Electronically Steerable Passive Array Radiator (ESPAR)࢔ࣥࢸ
ࢼࢆ⏝࠸ࡓ᳨ウࢆ⾜ࡗࡓ㸬3 ⣲Ꮚ ESPAR ࢔ࣥࢸࢼ࡟ࡣࣜ࢔ࢡࢱࣥࢫࢆኚ໬ࡉࡏࡽࢀࡿᐤ⏕⣲Ꮚࡀ 2 ⣲Ꮚ࠶ࡿ㸬ࡇࢀࡽࡢࣜ࢔ࢡࢱࣥࢫࢆ㸪࢔ࣥࢸࢼࣃࢱ࣮ࣥࡀ᫬㛫࡟ᑐࡋ࡚ṇᘻἼ࡜࡞ࡿࡼ࠺ኚ໬ࡉࡏ㸪࡞࠾࠿ࡘ㸪ṇᘻἼࡢ࿘Ἴ
ᩘࢆ f ࠾ࡼࡧ 2f ࡜ࡍࡿࡼ࠺࡟ࢹࢨ࢖ࣥࡋࡓ㸬ࡲࡓ㸪ཷಙᶵ࡟࠾࠸࡚㸪࢔ࣥࢲ࣮ࢧࣥࣉࣜࣥࢢࡍࡿࡇ࡜࡟ࡼࡾ㸪ពᅗⓗ࡟࢚࢖ࣜ࢔ࢩࣥࢢࢆⓎ⏕ࡉࡏࡓ㸬ࡇࢀࡽࡢᢏ⾡࡟ࡼࡾ㸪3 ⣲Ꮚ࢔ࣥࢸࢼ࠿ࡽ㸪7 ✀㢮ࡢ␗࡞ࡿ࢔ࣥࢸࢼࣃࢱ࣮
ࣥࡀ⏕ᡂ࡛ࡁࡿࡇ࡜ࢆ♧ࡋࡓ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Masato

Saito,

Antenna

Pattern

MultiplexingforEnhancing

Path

Diversity,

IntechOpen,

DOI:

10.5772/intechopen.89098, 2019 ᖺ 9 ᭶.
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Masato Saito, Capacity Analysis of Antenna Pattern Multiplexing based MIMO Receiver for Phase Distributions of
Antenna Pattern Coefficients, The first International workshop on Control, Communication, and Multimedia 2019
(IWCCM2019), Yangon Technological University, 2019 ᖺ 12 ᭶ 7 ᪥㹼8 ᪥.
࣭㰻⸨ᑗே㸪ࢫ࣐࣮ࢺ↓⥺࡟ྥࡅࡓ࢔ࣥࢸࢼࣃࢱ࣮ࣥከ㔜ᢏ⾡㸪㟁Ꮚ᝟ሗ㏻ಙᏛ఍ࢫ࣐࣮ࢺ↓⥺◊✲఍㸪▼ᇉᕷẸ఍㤋㸪2019 ᖺ 12 ᭶ 5 ᪥㹼6 ᪥.
࣭Masato Saito, Proposal of Antenna Pattern Multiplexing to Reduce Required Received Signal Power, International
Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019), Nagoya University, 2019 ᖺ 11 ᭶ 1 ᪥㹼3᪥.
࣭㰻⸨ᑗே㸪࢚࢖ࣜ࢔ࢩࣥࢢࢆ⏝࠸ࡓ 3 ⣲Ꮚ ESPAR ࢔ࣥࢸࢼࡢከฟຊ໬㸪㟁Ꮚ᝟ሗ㏻ಙᏛ఍ 2019 ᖺࢯࢧ࢖࢚ࢸ
࢕኱఍㸪኱㜰኱Ꮫ㸪2019 ᖺ 9 ᭶ 10 ᪥㹼13 ᪥.

89ู⣬ᵝᘧ㸰㸫㸰ࢯࣇࢺ࢙࢘࢔↓⥺ࢆ⏝࠸ࡓὶᫍࣂ࣮ࢫࢺ㏻ಙࡢ㧗ຠ⋡໬࡟㛵ࡍࡿ◊✲A Study on Performance Improvement of Meteor Burst Communications using
Software Defined Radio  ࿴⏣ᛅᾈ࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭ᩍᤵᒸ⏣ၨ࣭ྡྂᒇ኱Ꮫ࣭ࢩࢫࢸ࣒๰ᡂ㒊㛛࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ ὶᫍࡀᆅ⌫ࡢ኱Ẽᅪ࡟✺ධࡍࡿ㝿ࠊ኱Ẽ࡜ࡢᦶ᧿࡟ࡼࡾ㟁㞳Ẽయᰕ ὶᫍࣂ࣮ࢫࢺ ࡀⓎ⏕ࡍࡿࠋὶᫍࣂ࣮ࢫࢺ㏻ಙ 0%& ࡜ࡣࠊࡇࡢὶᫍࣂ࣮ࢫࢺ࡟ࡼࡿప 9+)ᖏ㟁Ἴࡢ཯ᑕ⌧㇟ࢆ฼⏝ࡋࡓぢ㏻ࡋእ㏻ಙ࡛࠶ࡾࠊ᭱኱ NP 㞳ࢀࡓ㏻ಙᒁ㛫࡛ࠊ኱つᶍ࡞࢖ࣥࣇࣛࢆᚲせ࡜ࡏࡎࢹ࣮ࢱఏ㏦ࢆᐇ⌧࡛ࡁࡿࠋࡑࡢࡓࡵ 0%& ࡣ኱㔞ࡢࢹ࣮ࢱఏ㏦ࢆᚲせ࡜ࡋ࡞࠸ࠊ⎔ቃほࡸẼ㇟ほࢩࢫࢸ࣒࡞࡝࡟ᛂ⏝ࡉࢀ࡚࠸ࡿࠋ⌧ᅾࠊ0%& ࡢ㉥㐨ᆅᇦ࡛ࡢ฼⏝ࢆ┠ᣦࡋࠊ࢖ࣥࢻࢿࢩ࢔࡛ᐇ㦂ࢆ㛤ጞࡋ࡚࠸ࡿࠋ㏆ᖺࡢࢯࣇࢺ࢙࢘࢔↓⥺ᶵࡸࢹࣂ࢖ࢫᢏ⾡ࡢⓎᒎ࡟క࠸ࠊ0%& ࡢ㏻ಙຠ⋡ࡀ኱࠸࡟ᨵၿ࡛ࡁࡿ࡜ᮇᚅࡉࢀࡿࠋᮏ◊✲࡛ࡣࠊ࢖ࣥࢻࢿࢩ࢔࡛ࡢὶᫍࣂ࣮ࢫࢺ㏻ಙᐇ㦂ࢆ⥅⥆ࡍࡿ࡜࡜ࡶ࡟ࠊὶᫍࣂ࣮ࢫࢺ㏻ಙ
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୰ࡢࢩࢫࢸ࣒ࡣ㏦ಙᶵ࡜ཷಙᶵࡢ୧᪉࡛
࠶ࡿࡀࠊࡑࡢ࠺ࡕᅗ㸯࡜ᅗ㸰࡟㛤Ⓨ୰ࡢཷಙᶵࡢࢩࢫࢸ࣒ࣈࣟ
ࢵࢡ⥺ᅗࢆ♧ࡍࠋࡇࡢᅗ 1㸸ᦙ㏦Ἴಙྕࡢ➼౯పᇦಙྕ࡬ࡢኚ᥮ࣈࣟࢵࢡ

㛤Ⓨ࡛ࡣࠊࢯࣇࢺ࢙࢘
࢔↓⥺ᶵࡢ㛤Ⓨࢶ࣮ࣝ࡜ࡋ࡚ GnuRadio ࢆ⏝࠸ࠊᦙ㏦Ἴᖏᇦಙྕ࡬ࡢࣇࣟࣥࢺ࢚ࣥࢻ࡜
ࡋ࡚ HackRFOne ࢹࣂ࢖ࢫࢆ฼⏝ࡍࡿࠋᅗ㸯ࡣᦙ㏦Ἴಙྕࡢ➼౯పᇦ⣔ಙྕ࡬ࡢኚ᥮ࣈ
ࣟࢵࢡࢆࠊᅗ㸰ࡣ DEPSK ኚㄪಙྕࢆ᚟ㄪࡍࡿࡓࡵࡢᕪື➢ྕ໬᚟ㄪࣈࣟࢵࢡ࡛࠶ࡾࠊ
ᅗ㸱ࡣ㏦ಙᶵ࠿ࡽࡢಙྕࢆࠊཷಙࣈࣟࢵࢡ࡟࠾࠸࡚ཷಙࡋࡓ⤖ᯝࢆ♧ࡍࠋࣉࣜ࢔ࣥࣈࣝ
ಙྕࡢཷಙ⤖ᯝ࠿ࡽࠊసᡂࡋࡓཷಙᶵࣈࣟࢵࢡࡀṇࡋࡃືసࡋ࡚࠸ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ90㸰㸬㸰 /'3& ➢ྕࡢὶᫍࣂ࣮ࢫࢺ㏻ಙ㊰࡬ࡢ㐺⏝࡟㛵ࡍࡿ◊✲0%& ࡢ㏻ಙࡢಙ㢗ᛶྥୖࡢࡓࡵࠊㄗࡾゞṇ➢ྕࡢ㐺⏝ࡀᚲ㡲࡛࠶ࡿࠋᮏ᳨ウ࡛ࡣࠊ㧗࠸ㄗࡾゞṇ⬟ຊࢆᣢࡕࠊࢯࣇࢺ࢙࢘࢔↓⥺ᶵ࡬ࡢᐇ⿦࡟㐺ࡋ࡚࠸ࡿ࡜ࡉ
ࢀࡿ /'3& ➢ྕࡢὶᫍࣂ࣮
ࢫࢺ㏻ಙ࡬ࡢ㐺⏝࡟ࡘ࠸᳨࡚ウࡋࡓࠋࡇࡢ㝿ࠊὶᫍ
ࣂ࣮ࢫࢺ㏻ಙ㊰ࡢ᫬ኚᛶࡀ /'3& ᚟ྕ࡟୚࠼ࡿᙳ㡪ᅗ㸱㸸ཷಙಙྕࡢ౛

࡟ࡘ࠸᳨࡚ウࡍࡿᚲせࡀ࠶ࡿࠋᅗ㸲ࡣࠊཷಙ㟁ຊࡢ᥎ᐃ⤖ᯝࢆ♧ࡋࡓࡶࡢ࡛ࠊ⅊Ⰽ⥺࡛♧ࡋࡓཷಙ್࠿ࡽࠊ⛣ືᖹᆒἲࢆ⏝࠸࡚┿್㸦㯮⥺㸧ࢆ᥎ᐃࡋࡓࠋᮏᅗ࠿ࡽࠊ⛣ືᖹᆒἲ࡟ࡼࡾⰋዲ࡞㟁ຊ᥎ᐃࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋᅗ㸳ࡣࠊཷಙ㟁ຊ᥎ᐃㄗᕪࡀ %(5 ࡟୚࠼ࡿᙳ㡪ࢆ♧ࡋࡓࡶࡢ࡛ࠊ᥎ᐃ್ࡀ┿್ࡼࡾ኱ࡁ࠸ሙྜ࡟ %(5 ࡢຎ໬ࡀࡳࡽࢀࠊࡑࡢࡓࡵᐇ⿦ࡢ㝿ࠊཷಙ㟁ຊࢆ㐣኱࡟ぢ✚ࡶࡿ࢔ࣝࢦࣜࢬ࣒ࡣ㑊ࡅࡿᚲせࡀ࠶ࡿࡇ࡜ࡀぢ࠸ࡔࡉࢀࡓࠋ

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Public transport promotion policy considering perceived service quality
Sugiarto࣭Syiah Kuala University࣭Department of Civil Engineering࣭෸ᩍᤵ୕㍯ᐩ⏕࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
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ࢫࡣᨻᗓࡢ୺ᑟ࡛ᑟධࡉࢀࡓ㸬ᮏ◊✲࡛ࡣ㸪ᑟධࡉࢀࡓࣂࢫࢧ
࣮ࣅࢫ࡟ᑐࡍࡿ㸪฼⏝⪅࠾ࡼࡧ㠀฼⏝⪅ࡢព㆑࡟㛵ࡍࡿㄪᰝࢹ࣮
ᅗ 1 ㄪᰝᑐ㇟㊰⥺㸦㉥⥺㸧ࢱࢆ⏝࠸ࡿ㸬ࡇࡢㄪᰝࡣ㸪2018ᖺ࡟ᐇ᪋ࡉࢀࡓ࢔ࣥࢣ࣮ࢺㄪᰝ࡛࠶ࡾ㸪ࣂࢫ฼⏝⪅࠿ࡽ 100 ࢧࣥࣉࣝ㸪⚾ⓗ஺㏻฼⏝⪅࠿ࡽ 100 ࢧࣥࣉࣝ཰㞟ࡉࢀࡓ㸬ㄪᰝ㡯┠ࡣ㸪ᑟධࡉࢀࡓ᪂ࡓ࡞ࣂࢫࢧ࣮ࣅࢫࡢ㸪Ᏻ඲ᛶࡸ฼౽ᛶ㸪࢔ࢡࢭࢫࡢⰋࡉ㸪᫬㛫ⓗṇ☜ࡉࡸ฼⏝ࡢࡋࡸࡍࡉ㸪ᐃ᫬ᛶ࡞࡝࡛࠶ࡾ㸦⾲ 1㸧㸪ࡑࢀࡒࢀࡢ㡯┠࡟ࡘ࠸࡚㸪㔜せᗘ࠾ࡼࡧࣃࣇ࢛࣮࣐ࣥࢫ࡟ࡘ࠸࡚ᅇ⟅ࢆồࡵ࡚࠸ࡿ㸬ᅇ⟅࡟ࡣ㸪࡜࡚ࡶ୙‶㊊㸭࡜࡚ࡶ୙ᚲせ㹼࡜࡚ࡶ‶㊊㸭࡜࡚ࡶ㔜せࡲ࡛ࢆ 4 ẁ㝵࡛ᅇ⟅ࡍࡿࡼ࠺ồࡵ࡚࠸ࡿ㸬ࡇࡢࢹ࣮ࢱࢆ⏝࠸࡚㸪㔜せᗘ㸫ࣃࣇ࢛࣮࣐ࣥࢫศᯒ㸦IPA; Importance– performance analysis㸧ࢆ⾜࠺㸬
ᅗ 2 ࡣ㸪ࣂࢫ฼⏝⪅࡟ᑐࡍࡿ IPA ศᯒࡢ⤖ᯝ࡛࠶ࡿ㸬㐺⏝ࡋࡓ IPA ศᯒ࡛ࡣ㸪ᶓ㍈࡟
㔜せᛶᣦᶆ㸪⦪㍈࡟ࣃࣇ࢛࣮࣐ࣥࢫᣦᶆࢆ࡜ࡗ࡚࠸ࡿ㸬ࡲࡓ㸪ᅗ୰ࡢ㉥⥺ࡣࡑࢀࡒࢀࡢ

92ᣦᶆࡢᖹᆒ್࡛࠶ࡿ㸬ࡇࡢ᫬㸪㔜せࡔ࡜ㄆ㆑ࡉࢀ࡚࠸ࡿࡀ㸪ࡑࡢࣃࣇ࢛࣮࣐ࣥࢫࡀ
୙༑ศࡔ࡜ㄆ㆑ࡉࢀ
࡚࠸ࡿ㡯┠ࡣ㸪㉥⥺ࢆ㍈࡜ࡋࡓሙྜࡢ➨4 ㇟㝈㸦ᅗ୰ྑୗ㸧࡟ࣉࣟࢵࢺࡉࢀࡿ㸬ᅗࡼࡾ㸪ࣂࢫ೵ࡢ
ᶵ⬟㸦E8㸧
㸪࣮ࣝࢺࡸ᫬้⾲ࡢ฼⏝ࡋࡸࡍ

No.
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15

Item
Security1
Security2
SafetyConvenience1
Convenience2
Convenience3
Convenience4
Convenience5
Accessibility
Punctuality1
Punctuality2
Equality
Regularity1
Regularity2
Tariff⾲ 1 ㄪᰝ㡯┠*Content of Element Question
Security from crime while in bus
Security from crime while in the bus stop
Feeling safe aspect of the bus
The convenience of bus cleanlinessConvenience while boarding the bus
Bus capacity comfortable
The convenience of bus facilities
The convenience of bus stop facilities
Ease to passengers to reach the bus stop
Ease of obtaining route and timetable
The accuracy of bus schedules
Facilities for disabilities and elderly
Travel time within the bus stops
The headway between consecutive bus
Current tariff appliedࡉ㸦E10㸧
㸪ࢫࢣࢪ࣮ࣗࣝࡢṇ☜ࡉ㸦E11㸧㸪ࣂࢫ᪑⾜᫬㛫ࡢṇ☜ࡉ㸦E13㸧
㸪ࣂࢫࡢ㐠⾜㛫㝸ࡢつ๎ᛶ
㸦E14㸧࡟࠾࠸࡚㸪ᨵၿࡀᚲせ࡛࠶ࡿࡇ
࡜ࡀศ࠿ࡿ㸬ࡲࡓ㸪ࡇࡇ࡟ࡣ♧ࡋ࡚࠸࡞
࠸ࡀ㸪㠀฼⏝⪅ࡢホ౯ࡶ㠀ᖖ࡟㢮ఝࡋ࡚࠸ࡓ㸬ࡓࡔࡋ㸪㠀฼⏝⪅࡛ࡣ㸪ࣂࢫࡢᐜ
㔞㸦E6㸧ࡀ➨ 4 ㇟㝈࡟ࣉࣟࢵࢺࡉࢀࡓ㸬ࡇࡢ㡯┠ࡣ㸪฼⏝⪅ᅗ 2 IPA ࡢ⤖ᯝ㸦ࣂࢫ฼⏝⪅㸧࡟ࡣ㧗࠸ࣃࣇ࢛࣮࣐ࣥࢫ࡜ࡋ࡚ㄆ㆑ࡉࢀ࡚࠸ࡓࡇ࡜࠿ࡽ㸪⚾ⓗ஺㏻ᡭẁࡢ฼⏝⪅࡟ࡣ㸪ࣂࢫෆࡢᛌ㐺ᛶࢆ⌮ゎࡉࡏࡿࡇ࡜ࡀ㸪ࣂࢫ฼⏝ࡢಁ㐍࡟ࡘ࡞ࡀࡿ࡜⪃࠼ࡽࢀࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿఍㆟㸼
࣭ Sugiarto, Fahlevi, H., Achmad, A., Anggraini, R., Fajri, L. and Miwa, T.: A preliminary
analysis of the relative importance bus system perceived quality service (PSQ) attributes
among public and private mode users, the 3rd Global Research on Sustainable Transport andLogistics, August 1-2, 2019, Jakarta, Indonesia

93ู⣬ᵝᘧ㸰㸫㸰ࣂ࢖࢜࢞ࢫ฼⏝ H2 〇㐀཯ᛂჾࡢ㛤Ⓨ࠾ࡼࡧ㧗ᛶ⬟໬Development and Performance Enhancement of H2 Production Reactor Utilizing Biogas
すᮧ㢧࣭୕㔜኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵ኱⏿ᬛႹ࣭୕㔜኱Ꮫ࣭ᕤᏛ㒊࣭Ꮫ㒊⏕᳜ᮌಖ᫛࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣࣂ࢖࢜࢞ࢫ࡟╔┠ࡋࡓ㸬ࣂ࢖࢜࢞ࢫࡣ㸪⏕ࡈࡳ㸪ᐙ␆⣅ᒀ㸪ୗỈởἾ➼ࢆཎᩱ࡜ࡋ࡚㸪᎘Ẽᛶᚤ⏕≀ࡀാࡃ࣓ࢱࣥⓎ㓝࡛⏕ᡂࡍࡿẼయ⇞ᩱ࡛࠶ࡿ㸬ࣂ࢖࢜࢞ࢫࢆ
࢚ࢿࣝࢠ࣮฼⏝࡛ࡁࢀࡤᗫᲠ≀ࡢ࢚ࢿࣝࢠ࣮ࣜࢧ࢖ࢡࣝ࡜࡞ࡾ㸪ࡲࡓ࣮࢝࣎ࣥࢽ࣮ࣗࢺ
࡛ࣛࣝ࠶ࡿࡇ࡜࠿ࡽ CO2 ๐ῶ࡟ࡶࡘ࡞ࡀࡗ࡚㸪᭷ᮃ࡞࢚ࢿࣝࢠ࣮㈨※࡛࠶ࡿ㸬⌧ᅾࡢࣂ࢖࢜࢞ࢫࡢ฼⏝᪉ἲ࡜ࡋ࡚ࡣ㸪࢞ࢫ࢚ࣥࢪࣥࡸ࣐࢖ࢡࣟ࢞ࢫࢱ࣮ࣅࣥ࡟ࡼࡿࢥࢪ࢙ࢿࡀ
୍⯡ⓗ࡛࠶ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪ࣂ࢖࢜࢞ࢫ࡟ࡣ CO2 ࡀ 60%ྵࡲࢀࡿ㸦ṧࡾࡣ CH4㸧ࡇ࡜࠿ࡽ㸪Ⓨ⇕㔞࠾ࡼࡧⓎ㟁ᛶ⬟ࡢపୗࢆᣍࡃ㸬ࡑࡇ࡛ᮏ◊✲࡛ࡣ㸪ࣂ࢖࢜࢞ࢫ࠿ࡽࢻࣛ
࢖ࣜࣇ࢛࣮࣑ࣥࢢ㸦CH4 + CO2 Ѝ 2H2 + 2CO㸧࡛ H2 〇㐀ࡋ㸪⇞ᩱ㟁ụⓎ㟁ࡍࡿࢩࢫࢸ
࣒ࢆᥦ᱌ࡍࡿ㸬ࡑࡋ࡚㸪ࣂ࢖࢜࢞ࢫ฼⏝ H2 〇㐀཯ᛂჾࡢ㛤Ⓨ࠾ࡼࡧ㧗ᛶ⬟໬ࢆ◊✲┠ⓗ࡜ࡍࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ୖグ◊✲┠ⓗࢆ㐩ᡂࡍ࡭ࡃ㸪ᩘ್ゎᯒࢯࣇࢺ࢙࢘࢔ CFD-ACE+ࢆ⏝࠸࡚ࣂ࢖࢜࢞ࢫ฼
⏝ H2 〇㐀཯ᛂჾࡢィ⟬ࣔࢹࣝࢆసᡂࡋ࡚ᩘ್ゎᯒࢆ⾜ࡗࡓ㸬100W ⣭ᅛయ㧗ศᏊᙧ⇞ᩱ㟁ụ࡬ࡢ౪⤥ H2 㔞ࡢ〇㐀ྍ⬟࡞཯ᛂჾᙧ≧㸪㐠㌿᮲௳ࢆ᝿ᐃࡋ࡚ᩘ್ゎᯒࢆ⾜࠸㸪཯ᛂჾὶࢀ᪉ྥ࡟ᑐࡍࡿ ᗘ T ࡜ CH4㸪CO2㸪H2㸪CO ࡢ⃰ᗘศᕸࢆホ౯ࡋࡓ㸬ᅗ 1 ࡟ィ⟬ࣔࢹࣝࢆ♧ࡍ㸬ࡲࡓ㸪௨ୗ࡟ᚓࡽࢀࡓ▱ぢࢆ♧ࡍ㸬ᅗ 1 ィ⟬ࣔࢹࣝ94㸺ᨺ⇕ࢆ⪃៖ࡋࡓሙྜࡢᙳ㡪ホ౯㸼 ຍ⇕㠃௨እࢆ➼᮲௳㸪ࡶࡋࡃࡣᨺ⇕᮲௳࡜ࡍࡿゎᯒࢆ⾜ࡗࡓࡀ㸪ὶධ࢞ࢫᗘ࡟ࡼࡽࡎ┠ⓗࡢ H2 ࡜๪⏕ᡂ≀࡛࠶ࡿ CO ࡣ࡝ࡢホ౯఩⨨࡟࠾࠸࡚ࡶ⏕ᡂࡉࢀ࡞࠿ࡗࡓ㸬㸺ቨ㠃࠿ࡽࡢຍ⇕㔞ࡢᙳ㡪ホ౯㸼 ཯ᛂჾࡢ∦ഃഃ㠃ࡢຍ⇕㠃࠿ࡽࡢຍ⇕㔞ࢆᇶ‽ຍ⇕㔞 33.3 kW/m2 ࠿ࡽ 2 ಸ㸪4 ಸ㸪8ಸ࡜ኚ໬ࡉࡏࡓ⤖ᯝ㸪ὶධ࢞ࢫ ᗘ࡟ࡼࡽࡎ H2 ࡣຍ⇕㔞 4 ಸ㸪8 ಸࡢ᫬ࡢࡳ⏕ᡂࡉࢀ㸪ຍ⇕㔞ࡣ 4 ಸ௨ୖࡀዲࡲࡋ࠸ࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬㸺∦ഃຍ⇕࣭୧ഃຍ⇕ࡢᙳ㡪ホ౯㸼 ∦ഃຍ⇕࠿ࡽ୧ഃຍ⇕࡟᮲௳ࢆኚ᭦ࡋ࡚ゎᯒࢆ⾜ࡗࡓ㸬ࡑࡢ⤖ᯝ㸪H2㸪CO ඹ࡟ຍ⇕㔞ࡀᇶ‽ຍ⇕㔞ࡢ 4 ಸ㸪8 ಸࡢ᫬ࡢࡳ⏕ᡂࡉࢀࡓ㸬⏕ᡂ㔞࡟ࡘ࠸࡚ࡣ㸪ྠࡌຍ⇕㔞࡛ࡣὶධ࢞ࢫ ᗘ࡟ࡼࡽࡎᕪ␗ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࡀ㸪཯ᛂჾෆ ᗘࡢᆒ୍໬ࡀㄆࡵࡽࢀࡓ㸬 ࡲࡓ㸪ᩘ್ゎᯒ࡜ඹ࡟཯ᛂჾࢆタィ࣭〇సࡋ㸪ᐇ㦂࡛཯ᛂჾᛶ⬟ࢆホ౯ࡋࡓ㸬ᅗ 2 ࡟ᐇ㦂⿦⨨ᴫ␎ᅗࢆ♧ࡍ㸬ࡲࡓ㸪ᚓࡽࢀࡓ▱ぢࢆ௨ୗ࡟グࡍ㸬ᅗ 2 ᐇ㦂⿦⨨ᴫ␎ᅗ㸺࢞ࢫศ㞳↓ࡋ㸼 タᐃ ᗘࡢ␗࡞ࡿ᮲௳࡛ẚ㍑ࡍࡿ࡜㸪タᐃ ᗘࡀ㧗࠸࡯࡝ H2 ⃰ᗘࡀ㧗ࡃ࡞ࡿࡇ࡜ࡀ
☜ㄆ࡛ࡁࡓ㸬᭱㧗್ࡣタᐃ

ᗘ 600Υࡢ᫬࡟ᚓࡽࢀ㸪166 ppmV ࡛࠶ࡗࡓ㸬㸺࢞ࢫศ㞳᭷ࡾ㸼 ཯ᛂჾഃ࡜ᤲẼᵴഃ࡛ὶධ࢞ࢫὶ㔞࡟ᕪࢆ୚࠼࡚ᐇ㦂ࢆ⾜ࡗࡓ⤖ᯝ㸪ᤲẼ࢞ࢫࡢ Arࡢὶ㔞ࢆ⿕཯ᛂ࢞ࢫ࡛࠶ࡿ CH4 ࡜ CO2 ࡢྜィὶ㔞࡛㝖ࡋࡓ↓ḟඖὶ㔞ẚࡀ 1 ௨እࡢ⤖ᯝ࡟࠾࠸࡚ H2 ࡀศ㞳⭷ࢆ㏱㐣ࡋ࡚཯ᛂჾഃ࠿ࡽᤲẼᵴഃ࡬⛣ືࡍࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓ㸬ࡲࡓ㸪࢞ࢫศ㞳᭷ࡾ࡟ࡍࡿࡇ࡜࡛㸪ྜィ H2 ⏕ᡂ㔞ࡣ 1.2㹼1.4 ಸ኱ࡁࡃ࡞ࡗࡓ㸬౛࠼ࡤ㸪タᐃ ᗘ 600Υ࡛࢞ࢫศ㞳↓ࡋ᮲௳࡟࠾࠸࡚ࡣ H2 ᭱㧗⃰ᗘࡀ 166 ppmV ࡛࠶ࡗࡓࡢ࡟ᑐ
ࡋ㸪࢞ࢫศ㞳᭷ࡾ᮲௳࡛ࡣ཯ᛂჾഃ࡜ᤲẼᵴഃࡢྜィ H2 ⏕ᡂ㔞ࡀ↓ḟඖὶ㔞ẚ 0.5 ࡛
234 ppmV ࡜ቑຍࡋࡓࡇ࡜࠿ࡽ㸪ᤲẼᵴഃ࡟ H2 ࡀ㏱㐣ࡋࡓࡇ࡜࡟ࡼࡾ㠀ᖹ⾮≧ែ࡟࡞ࡾ㸪ࡑࡢ⤖ᯝ཯ᛂࡀಁ㐍ࡉࢀࡓ࡜⪃࠼ࡽࢀࡿ㸬ࡉࡽ࡞ࡿ㧗ᛶ⬟໬ࡀ௒ᚋࡢㄢ㢟࡛࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ ≉࡟࡞ࡋ㸬95㻌ู⣬ᵝᘧ䠎䠉䠎

IoT ࢹࣂ࢖ࢫ㛫ࡢ┤᥋㏻ಙࢆᐇ⌧ࡍࡿࡍࡲ࣮࡜ࢿࢵࢺ࣮࣡ࢡᢏ⾡ࡢ㛤Ⓨ
Development of smart networks
to realize end-to-end communication among IoT devicesෆ⸨ඞᾈ䞉ឡ▱ᕤᴗ኱Ꮫ䞉᝟ሗ⛉Ꮫ㒊䞉෸ᩍᤵᑠᯘ ೺ኴ㑻䞉ྡྂᒇ኱Ꮫ䞉ᮍ᮶ᮦᩱ䞉䝅䝇䝔䝮◊✲ᡤ䞉ຓᩍ㸯㸬◊✲┠ⓗ㻌 ᮏ◊✲࡛ࡣࠊ⌧ᅾࡢ࢖ࣥࢱ࣮ࢿࢵࢺ࡟࠾࠸࡚㏻ಙ␯㏻ࢆ㜼ᐖࡍࡿせᅉ࡛࠶ࡿ,3 ,QWHUQHW3URWRFRO ࡢ␗ࣂ࣮ࢪࣙࣥ㛫ࡢ㏻ಙࠊ࢔ࢻࣞࢫኚ᥮ᢏ⾡࡟ࡼࡿ㏻ಙ
㐽᩿࡞࡝࡟ᑐᛂࡍࡿࢫ࣐࣮ࢺࢿࢵࢺ࣮࣡ࢡᢏ⾡ࢆ㛤Ⓨࡍࡿࡇ࡜࡟ࡼࡾࠊ,R7
㸦,QWHUQHWRI7KLQJV㸧ࢹࣂ࢖ࢫࡀ┤᥋࢚ࣥࢻ㛫㏻ಙࢆᐇ⌧ྍ⬟࡞ࢩࢫࢸ࣒ࡢ
㛤Ⓨࢆ┠ᣦࡍࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝᅗ  ࡟ᥦ᱌ࡍࡿ㏻ಙࢩࢫࢸ࣒ࡢࢩࢫࢸ
࣒ࣔࢹࣝࢆ♧ࡍࠋᮏࢩࢫࢸ࣒ࡣࢡࣛ࢘
ࢻࢩࢫࢸ࣒࡜࢚ࣥࢻ➃ᮎᶵ⬟࡟ࡼࡾᵓᡂࡉࢀࠊ࢚ࣥࢻ➃ᮎ㛫ࡢ┤᥋㏻ಙࢆᐇ

Tunnel Communication
Correspondent Node(CN)CYPHONIC Overlay Network

IPv4 Global networks⌧ࡍࡿࠋࢩࢫࢸ࣒⟶⌮ࢡࣛ࢘ࢻࡢ㛤Ⓨ

IPv4 Private networks

Mobile Node
(MN)

IPv6 Global networks

IPv4/v6 Dual networks

Internet┠ⓗ࡜ࡍࡿ㏻ಙࢩࢫࢸ࣒࡛ࡣࠊᐇ㝿࡟
㏻ಙࢆ⾜࠺࢚ࣥࢻ➃ᮎࡢࢿࢵࢺ࣮࣡ࢡ≧ែ࡞࡝ࢆ⟶⌮ࡍࡿࢡࣛ࢘ࢻࢩࢫࢸ࣒ࡀᚲ
せ࡜࡞ࡿࠋᮏ◊✲࡛ࡣࠊ≉࡟ㄆドᶵ⬟࡜
㏻ಙไᚚᶵ⬟ࢆࡘ࠿ࡉ࡝ࡿࢡࣛ࢘ࢻࢧ࣮
ࣅࢫࡢ㛤Ⓨࢆᐇ᪋ࡋࡓࠋㄆドᶵ⬟⏝ࡢࢡ

Node Management Service Tunnel Relay Service(NMS) for CN(TRS)

Node Management Service(NMS) for MN

Authentication Service(AS)

CYPHONIC CLOUDᅗ ࢩࢫࢸ࣒ࣔࢹࣝ

ࣛ࢘ࢻࡣࠊ࢚ࣥࢻ➃ᮎࡀṇᙜ࡞➃ᮎ࡛࠶ࡿࡢ࠿ࢆุ᩿ࡍࡿࡓࡵࠊ࢚ࣥࢻ➃ᮎ࠿ࡽࡢㄆドせồࢆ᳨ドࡍࡿࠋࡲࡓࠊ᳨ド⤖ᯝ࡜ࡋ࡚ṇᙜ࡞➃ᮎ࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓሙྜࠊ㏻ಙไᚚᶵ⬟⏝ࡢࢡࣛ࢘ࢻ࡜
࢚ࣥࢻ➃ᮎࡀ㏻ಙࢆ⾜࠺ࡓࡵࡢ㏻ಙ⏝ᬯྕ㘽ࢆ⏕ᡂࡋ㓄ᕸࢆ⾜࠺ࠋ࢚ࣥࢻ➃ᮎ
࡜㏻ಙไᚚ⏝ࢡࣛ࢘ࢻࡣࠊࡇࡢ㏻ಙ⏝ᬯྕ㘽ࢆ฼⏝ࡍࡿࡇ࡜࡟ࡼࡾࠊ࢚ࣥࢻ➃ᮎࡢࢿࢵࢺ࣮࣡ࢡ≧ែࢆ཰㞟ࡍࡿ࡜࡜ࡶ࡟ࠊ㏻ಙせồ࡟ᛂࡌ࡚ࠊヱᙜ➃ᮎ࡬ࡢ࢚ࣥࢻ㛫㏻ಙࢆ⾜࠺ࡓࡵࡢ㏻ಙฎ⌮ࡢᣦ♧ࢆ⾜࠺ᮏ◊✲࡛ࡣࠊࡇࢀࡽࡢᶵ⬟ࢆ
/LQX[26 ୖ࡟ 5XE\ ゝㄒࢆ⏝࠸࡚ᐇ⿦ࢆ⾜࡞࠸ࠊ࢚ࣥࢻ➃ᮎ࠿ࡽࡢฎ⌮ࢆṇࡋࡃฎ⌮ྍ⬟࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ

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/LQX[ ྥࡅ࢚ࣥࢻ➃ᮎᶵ⬟ࡢ㛤Ⓨ㻌 ┠ⓗ࡜ࡍࡿ㏻ಙࢩࢫࢸ࣒ࡢ࢚ࣥࢻ➃ᮎᶵ⬟ࡣ኱ูࡋ࡚㸰✀㢮ࡢᶵ⬟ࢆᣢࡘࠋ୍
ࡘ┠ࡣࢡࣛ࢘ࢻࢩࢫࢸ࣒࡜㏻ಙࡍࡿࡇ࡜࡟ࡼࡾࠊ➃ᮎࡢㄆドࢆ⾜࠺࡜ඹ࡟ࠊࢿ
ࢵࢺ࣮࣡ࢡ≧ែࢆࢡࣛ࢘ࢻࢩࢫࢸ࣒࡟㏻▱ࡋࠊᚲせ࡟ᛂࡌ࡚┠ⓗ➃ᮎ࡜ࡢ࢚ࣥ
ࢻ㛫㏻ಙࢆᐇ⌧ࡍࡿ㏻ಙไᚚࢆ⾜࠺ࡶࡢ࡛࠶ࡿࠋ஧ࡘ┠ࡣ࢚ࣥࢻ㛫㏻ಙ࡛㌿㏦
ࡉࢀࡿ ,3 ࢹ࣮ࢱࢢ࣒ࣛࢆᏳ඲࡟㐠ࡪฎ⌮ࢆ⾜࠺ࡶࡢ࡛࠶ࡿࠋᮏ◊✲࡛ࡣࠊ/LQX[ ྥࡅࡢ࢚ࣥࢻ➃ᮎᶵ⬟ࢆࣉࣟࢺࢱ࢖ࣉ࡜ࡋ࡚ 58%< ࢆ฼⏝ࡋ࡚㛤Ⓨࢆ⾜࡞ࡗࡓࠋ㛤Ⓨࡋࡓࣉࣟࢺࢱ࢖ࣉ࡛ࡣࠊࢡࣛ࢘ࢻࢩࢫࢸ࣒࡜ྠᵝࡢᯟ⤌ࡳࢆ฼⏝ࡋ࡚࢚ࣥࢻ➃ᮎ࡜ࢡࣛ࢘ࢻࢩࢫࢸ࣒㛫ࡢ㏻ಙไᚚࢆᐇ⌧ࡋࡓࠋࡲࡓࠊ,3 ࢹ࣮ࢱࢢ࣒ࣛࡢᦙ㏦ฎ⌮࡜ࡋ࡚ࡣࠊ/LQX[26 ୖ࡟௬᝿࢖ࣥࢱ࣮ࣇ࢙࣮ࢫࢆ᪂ࡓ࡟ᐇ⿦ࡍ
ࡿࡇ࡜࡟ࡼࡾࠊ௬᝿࢖ࣥࢱ࣮ࣇ࢙࣮ࢫࢆ⤒⏤ࡋࡓᬯྕ໬㏻ಙࢆᐇ⌧ࡋࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ䠘ᅜ㝿䞉ᅜෆ఍㆟䠚zShuhei Isomura, Takahiro Nimura, Katsuhiro Naito, Design of end-to-end connection
technology of microcomputer equipment using overlay network, The 12th International
KES Conference on INTELLIGENT INTERACTIVE MULTIMEDIA: SYSTEMS ANDSERVICES, Malta, 2019/6/17-19.

zKatsuhiro Naito, Kohei Tanaka, Naoki Yamamoto, Ryota Murate, Hiroto Mori, Ayumu
Kurata, Kensuke Tanaka, Development of Management Cloud Software for Overlay
Network, The 23rd World Multi-Conference on Systemics, Cybernetics and Informatics:
WMSCI 2019, USA, 2019/7/6-9.

zTaiki Yoshikawa, Yuki Yamada, Shuhei Isomura, Kohei Tanaka, Katsuhiro Naito,
Proposal of shared library supporting multi-platform for overlay network protocol, RISPInternational Workshop on Nonlinear Circuits, Communications and Signal Processing
2020, USA, 2020/2/28-2020/3/2.

z

Yuki Yamada, Shuhei Isomura, Taiki Yoshikawa, Kohei Tanaka, Katsuhiro Naito,
Proposal of mobile transparency protocol framework for smartphone, RISP International
Workshop on Nonlinear Circuits, Communications and Signal Processing 2020, USA,
2020/2/28-2020/3/2.

zShuhei Isomura, Yuki Yamada, Taiki Yoshikawa, Kohei Tanaka, Katsuhiro Naito,
Proposal of management cloud software supporting multi-thread processing for overlay
network protocol, RISP International Workshop on Nonlinear Circuits, Communications
and Signal Processing 2020, USA, 2020/2/28-2020/3/2.

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ู⣬ᵝᘧ㸰㸫㸰ప᧜ᙳ㏿ᗘࡢ࣓࢝ࣛ࡟ࡼࡿྍどග㏻ಙࡢࡓࡵࡢ
ᅇ㌿ᘧ LED ㏦ಙᶵࢆ⏝࠸ࡓ㏻ಙ㏿ᗘࡢྥୖ
Improvement of Data Transmission Speed Using Rotatory LED Transmitter
for Visible Light Communication with Low Frame Rate Camera㸦௦⾲㸧Ⲩ஭ ఙኴ㑻࣭ᒸᒣ⌮⛉኱Ꮫ࣭ᕤᏛ㒊 㟁Ẽ㟁Ꮚ㺚㺛㺡㺯Ꮫ⛉࣭ㅮᖌ㸦ศᢸ࣭◊✲ᡤᢸᙜᩍဨ㸧ᑠᯘ ೺ኴ㑻࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭㺚㺛㺡㺯◊✲ᡤ㺚㺛㺡㺯๰ᡂ㒊㛛࣭ຓᩍ㸦ศᢸ㸧ୀ↓ᕧ࣭ᒸᒣ⌮⛉኱Ꮫ኱Ꮫ㝔 ᕤᏛ◊✲⛉ 㟁ᏊᕤᏛᑓᨷ㸪1 ᖺ
Ἀ㔝 ᾏㄔ㸪㧗ᮌ 㞞ྐ㸪୰ᒣ ᫭඾࣭ᒸᒣ⌮⛉኱Ꮫ ᕤᏛ㒊                   㟁Ẽ㟁Ꮚ㺚㺛㺡㺯Ꮫ⛉㸪Ꮫ㒊 4 ᖺ㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣ㸪㏦ಙᶵ࡟ LED㸪ཷಙᶵ࡟࣓࢝ࣛࢆ฼⏝ࡋࡓࠕ࣓࢝ࣛᆺྍどග㏻ಙࠖ࡟ὀ┠ࡍࡿ㸬࣓࢝ࣛࢆཷಙᶵ࡟⏝࠸ࡓሙྜ㸪ྍどග㏻ಙࡢ㏻ಙ㏿ᗘࡣ࣓࢝ࣛࡢ᧜ᙳ㏿ᗘ࡟౫Ꮡࡋ࡚Ỵࡲࡿ㸬᧜ᙳ㏿ᗘ 60 fps ࡢ୍⯡ⓗ࡞ప᧜ᙳ㏿ᗘࡢ࣓࢝ࣛࢆ⏝࠸ࡓሙྜ㸪LED1
ಶ࠶ࡓࡾࡢ㏻ಙ㏿ᗘࡣ 30 bps ࡜㠀ᖖ࡟ప㏿࡛࠶ࡿ㸬ࡇࡢၥ㢟ࢆゎỴࡍࡿࡓࡵ㸪ᮏ◊✲࡛
ࡣ㏦ಙᶵ⮬యࡀᅇ㌿ࡍࡿࠕᅇ㌿ᘧ LED ㏦ಙᶵࠖࢆᥦ᱌ࡍࡿ㸬㏦ಙᶵࢆ᧜ᙳ㏿ᗘ௨ୖࡢ㏿ࡉ࡛ᅇ㌿ࡉࡏࡿࡇ࡜࡛㸪LED ࡢ᫬㛫᪉ྥࡢⅬ⁛ࢆ⏬ീࡢ✵㛫᪉ྥ(Ỉᖹ᪉ྥ)࡛ᤊ࠼ࡽ
ࢀࡿࡼ࠺࡟࡞ࡾ㸪ྍどග㏻ಙࡢ㧗㏿໬ࢆᐇ⌧࡛ࡁࡿ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ヨసࡋࡓᅇ㌿ᘧ LED ㏦ಙᶵࢆᅗ 1 ࡟♧ࡍ㸬㏦ಙᶵࡣᅇ㌿㒊㸪࣮ࣟࢱ࣮࢚ࣜࣥࢥ࣮ࢲ
࣮㸪ࣈࣛࢩࣞࢫ࣮ࣔࢱ࣮࡛ᵓᡂࡉࢀ࡚࠸ࡿ㸬ᅇ㌿㒊࡟ࡣ 9 ಶࡢ LED ࡀ⦪ 1 ิ࡟୪ࢇ࡛
࠾ࡾ㸪࣮ࣔࢱ࣮࡟ࡼࡗ࡚ᅇ㌿ࡍࡿ㸬ࡑࢀ࡜㐃ືࡋ࡚࣮ࣟࢱ࣮࢚ࣜࣥࢥ࣮ࢲ࣮ࡀᅇ㌿ࡋ㸪
1 ᗘࡢᅇ㌿ẖ࡟ࢡࣟࢵࢡࡀ⏕ᡂࡉࢀࡿ㸬ࡑࡢࢡࣟࢵࢡ࡟ᛂࡌ࡚㸪ᅇ㌿ 1 ᗘẖ࡟ LED ࡀ
Ⅼ⁛ࡍࡿࡼ࠺࡟ືసࡍࡿ㸬ࡇࡢ᫬㸪࣓࢝ࣛ㸦ཷಙᶵ㸧ࡢ᧜ᙳ㏿ᗘ௨ୖࡢ㏿ࡉ࡛ᅇ㌿ࡉࡏࡿ࡜㸪ᅗ 2 ࡢࡼ࠺࡟ LED ࡢ㧗㏿Ⅼ⁛ࢆࣂ࣮ࢥ࣮ࢻࡢࡼ࠺࡞᫂ᬯࣃࢱ࣮ࣥ࡜ࡋ࡚ᤊ࠼ࡽ
ࢀࡿ㸬௒ᖺᗘࡣ㸪ᤊ࠼ࡽࢀࡓ LED Ⅼ⁛⏬ീ࠿ࡽࢹ࣮ࢱࢆ᚟ㄪࡍࡿࡓࡵࡢཷಙ࢔ࣝࢦࣜࢬ࣒
ࡢ㛤Ⓨࢆ⾜ࡗࡓ㸬ලయⓗ࡟ࡣ㸪㏦ಙࡍࡿࢹ࣮ࢱࡢࣃࢣࢵࢺᵓᡂࡢ᳨ウࢆࡋ㸪ࡑࡢᵓᡂ࠿
ࡽࢹ࣮ࢱ᚟ㄪࡢࡓࡵࡢ࢔ࣝࢦࣜࢬ࣒ࢆ⪃᱌ࡋࡓ㸬
㏦ಙࡉࢀࡿࣃࢣࢵࢺࡣ㸪࣊ࢵࢲ࣮㒊࡜ࢹ࣮ࢱ㒊࡟ศ࠿ࢀ࡚࠾ࡾ㸪࣊ࢵࢲ࣮㒊࡛ࡣཷಙᶵഃ࡛⏬ീୖࡢᅇ㌿ゅᗘẖࡢ LED ᗙᶆࢆྲྀᚓࡍࡿࡓࡵࡢⅬ⁛ࣃࢱ࣮ࣥࢆᤄධࡍࡿ㸬ᮏ◊✲࡛ࡣ㸪ཷಙᶵഃ࡛☜ᐇ࡟ᗙᶆࢆྲྀᚓࡍࡿࡓࡵ࡟㸪ᅇ㌿ゅᗘ 10 ᗘẖ࡟㸪9 ಶࡢ LED
ࡀ඲Ⅼⅉࡍࡿࣃࢱ࣮ࣥࢆᤄධࡋࡓ㸬ࡑࡢⅬⅉ఩⨨ࡣᅇ㌿୍࿘ẖ࡟ 1 ᗘࡎࡘࢩࣇࢺࡉࡏ࡚
࠾ࡾ㸪඲㒊࡛ 10 ࣃࢱ࣮ࣥᤄධࡋࡓ㸬ࡉࡽ࡟㸪ཷಙᶵࡀ㏦ಙᶵ࠿ࡽࢹ࣮ࢱࢆྲྀᚓࡍࡿࡓ

98

৚ૡ৖

ট‫ॱش‬জ‫ش‬ग़থ॥‫شॲش‬଻भ/('‫ق‬ഔ૾पଦ઼‫ك‬৚ૡ্਱৚ૡഓ২২ী

ঈছ३ঞ५ঔ‫شॱش‬

௕‫؟‬৚ૡૄ/('ଛਦਃभ૥੿ਃ

௕‫؟‬๡୶઺൸୻

‫ق‬৚ૡச২ USP๡୶ச২ ISV‫ك‬ࡵࡢࢹ࣮ࢱྲྀᚓ⠊ᅖࢆタᐃࡋ㸪ࡑࡢ⠊ᅖࢆ▱ࡽࡏࡿࡓࡵࡢ࣮࢞ࢻࣃࢱ࣮ࣥࢆᤄධࡋࡓ㸬ࡇࢀࡣヨసࡋࡓ㏦ಙᶵࡀᆅ㠃࡜ᆶ┤࡞㍈ࢆ୰ᚰ࡟ᅇ㌿ࡋ࡚࠾ࡾ㸪ཷಙᶵ࡛࠶ࡿ࣓࢝ࣛࡣ㸪㏦ಙᶵࡀ࣓࢝ࣛࡢ๓ࢆ㏻㐣ࡋࡓ⠊ᅖࡋ࠿᧜ᙳ࡛ࡁ࡞࠸ࡓࡵ࡛࠶ࡿ㸬ᮏ◊✲࡛ࡣᅇ㌿ゅᗘ
60 ᗘࢆࢹ࣮ࢱ⠊ᅖ࡜タᐃࡋ㸪࣮࢞ࢻࣃࢱ࣮ࣥ࡜ࡋ࡚㸪60 ᗘẖ࡟ 9 ಶࡢ LED ࡀ඲Ⅼⅉࡍࡿࣃࢱ࣮ࣥࢆᤄධࡋࡓ㸬ࢹ࣮ࢱ㒊ࡣࣛࣥࢲ࣒ࢹ࣮ࢱࢆ On-Off-Keying ኚㄪࡉࡏ㸪ࡑࡢኚㄪࢹ࣮ࢱ࡟ᛂࡌࡓ LED Ⅼ⁛ࣃࢱ࣮ࣥࢆᤄධࡍࡿ㸬ᮏ◊✲࡛ࡣࢹ࣮ࢱ⠊ᅖࢆタᐃࡋ࡚࠸ࡿࡓࡵ㸪୍࿘ 360 ᗘࢆ 6 ➼ศࡋ㸪➼ศࡋࡓྛ⠊ᅖ㸦ᅇ㌿ゅᗘ 60 ᗘศ㸧࡛ྠࡌⅬ⁛ࣃࢱ࣮࡛ࣥ LED ࡀගࡿࡼ࠺࡟タᐃࡋࡓ㸬㏦ಙᶵࡣࢹ࣮ࢱ㒊ࡢᅇ㌿ᩘࢆ 20 ᅇ㌿ࡉࡏ㸪1 ᅇ㌿ẖ࡟␗࡞ࡿࢹ࣮ࢱࢆ㏦ಙࡍࡿ㸬ཷಙᶵ࡛ࡣ㸪ࡲࡎ࣊ࢵࢲ࣮㒊ࡢⅬ⁛ࢆ᧜ᙳࡋ㸪ࡑࡢ᧜ᙳ⏬ീࢆࣛ࣋ࣜࣥࢢࡋ࡚㸪ᅇ㌿ゅᗘẖࡢ LED ᗙᶆ࡜࣮࢞ࢻ⠊ᅖࢆྲྀᚓࡍࡿ㸬ࡑࡋ࡚㸪ࡑࢀࡽࡢᗙᶆ࡜⠊ᅖࢆ⏝࠸࡚ࢹ࣮ࢱ㒊ࡢⅬ⁛ࡢ⏬⣲್ࢆᢤࡁฟࡋ㸪㜈್ุᐃ࡟ࡼࡗ࡚ࢹ࣮
ࢱࢆ᚟ㄪࡍࡿ㸬
ୖ㏙ࡋࡓ㏦ಙࣃࢣࢵࢺ࡜ཷಙ࢔ࣝࢦࣜࢬ࣒ࢆ⏝࠸࡚ᐇ㝿࡟㏻ಙᐇ㦂ࢆ⾜ࡗࡓ㸬ᮏ◊✲࡛ࡣ㸪㏦ಙᶵࡢ࣮ࣔࢱ࣮ᅇ㌿㏿ᗘࢆ 300 rpm㸪࣓࢝ࣛࡢ᧜ᙳ㏿ᗘ 5 fps ࡜タᐃࡋ㸪㏻ಙ
㊥㞳ࢆ 1 m ࡜ࡋࡓ㸬ࡲࡓ㸪ཷಙᶵഃ࡛ LED ㏦ಙᶵࡢ఩⨨ࡣ᪤▱࡜ࡋ࡚ᐇ㦂ࢆ⾜ࡗࡓ㸬ᐇ㦂ࡢ⤖ᯝ㸪ྛゅᗘ࡟࠾ࡅࡿ LED ᗙᶆࢆṇ☜࡟ྲྀᚓࡍࡿࡇ࡜࡟ᡂຌࡋ㸪᚟ㄪࡶ࢚࣮ࣛ
ࣇ࣮ࣜࢆ㐩ᡂࡋࡓ㸬ࡲࡓ㸪㏻ಙ㏿ᗘࡣ 2.7 kbps ࢆ㐩ᡂࡋࡓ㸬ࡇࢀࡣ㸪ᚑ᮶ᡭἲࡢ 60 ಸ
ࡢ㏻ಙ㏿ᗘ࡛࠶ࡿ㸬௒ᚋࡢㄢ㢟࡜ࡋ࡚㸪㏻ಙ㊥㞳ࡢኚ໬࡟ࡼࡿᛶ⬟ࡢㄪᰝࡸ㸪⏬ീୖ࠿ࡽ LED ㏦ಙᶵࡢ఩⨨ࢆ᳨ฟࡍࡿ࢔ࣝࢦࣜࢬ࣒ࡢ㛤Ⓨࡀᣲࡆࡽࢀࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Ⲩ஭ఙኴ㑻, “㏦ಙᶵࡀᅇ㌿!? -ᅇ㌿ᘧ LED ㏦ಙᶵ࡟ࡼࡿ㧗㏿ྍどග㏻ಙ-”, ࢖ࣀ࣮࣋ࢩ࣭ࣙࣥࢪࣕࣃࣥ 2019, ᮾிࣅࢵࢢࢧ࢖ࢺ㟷ᱵᒎ♧Ჷ, 2019 ᖺ 8 ᭶ 29, 30 ᪥.
࣭ S. Arai, “A Study on LED Transmitter of Image Sensor Communication for Improving Data
Transmission Rate,” ICMaSS 2019, Nagoya, Nov. 1-3, 2019.
࣭ Z. Tang, A. Nakayama, S. Arai, H. Takata, T. Yendo, “A Study on Rotary LED Transmitterfor Improving Data Transmission Rate of Image Sensor Communication,” 1st OWC2,
Nagoya, Dec. 17-18, 2019.

99ู⣬ᵝᘧ㸰㸫㸰㧗Ᏻ඲ᛶ LIB ㈇ᴟྥࡅࡢࢼࣀ࣏࣮ࣛࢫ TiO2 -TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷࡜ LiTiPO4 ᅛయ㟁ゎ㉁࡜ࡢࢼࣀ✚ᒙ໬
Nano-laminated Fabrication of Nano-porous Anodic TiO 2 -TiN Composite Films and
LiTiPO 4 Solid Electrolyte toward High-Security LIB Anode Materials࿋ ᯇ➉࣭ྡྂᒇᕤᴗ኱Ꮫ࣭≀⌮ᕤᏛ⛉ᮦᩱᶵ⬟ศ㔝࣭ᩍᤵ㝞 㞷㞹࣭ྡྂᒇᕤᴗ኱Ꮫ࣭≀⌮ᕤᏛᑓᨷᮦᩱᶵ⬟ศ㔝࣭ಟኈ㸯ᖺ⯆ᡞ ṇ⣧࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵᙰ ⪽࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭◊✲ဨ㸯㸬◊✲┠ⓗ ᆅ⌫⎔ቃ࡬ࡢ㓄៖ࡸ໬▼⇞ᩱࡢᯤῬၥ㢟ࢆ⫼ᬒ࡜ࡋ࡚㸪LIB ࡢ㟂せࡣࠊᚑ᮶ࡢᑠᆺ㟁Ꮚᶵჾ࡛࠶ࡿᦠᖏ㟁ヰࡸࣀ࣮ࢺࣃࢯࢥࣥ࡞࡝࠿ࡽ㸪ࣁ࢖ࣈࣜࢵࢻ㌴㸪㟁Ẽ⮬ື㌴㸪ᐃ⨨ᆺ⵳㟁ụ࡞࡝ࡢ኱ᆺ㟁Ẽ࢚ࢿࣝࢠ࣮ኚ᥮ࢹࣂ࢖ࢫ࡬࡜ᛴ㏿࡟ᣑ኱ࡋ࡚࠸ࡿࠋࡇࢀࡽࡢ኱
ᆺືຊ※ࡢ LIB ࡣ㸪㏻ᖖࡢᑠᆺ㟁Ꮚᶵჾࡼࡾ㐶࠿࡟㧗࠸࢚ࢿࣝࢠ࣮ᐦᗘ࡜Ᏻ඲ᛶࡀせồࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊ᪂つ࡞㧗ᛶ⬟ୟࡘపࢥࢫࢺ LIB 㟁ᴟᮦᩱࡢ๰〇ࢆ┠ᣦࡋࠊTi ⟩ୖ࡟㧗཯ᛂᛶ࡜ᑟ㟁ᛶࢆ᭷ࡍࡿࢼࣀ࣏࣮ࣛࢫ TiO 2 -TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࢆᙧᡂࡋࠊࡲࡓࠊࣁ࢖ࣈࣜࢵࢻ㟁Ẽࡵࡗࡁἲ࡟ࡼࡾ኱ᐜ㔞ࡢ Sn ⣔≀㉁ࢆ TiO 2 -TiN 」ྜ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࡢ⣽Ꮝෆ࡟ᑟධࡍࡿࡇ࡜࡟ࡼࡾࠊᏳ඲
ᛶྥୖ࡜኱ᐜ㔞໬ࡢ୧❧ࢆᯝࡓࡍࠋࡉࡽ࡟ࠊỈ⇕ἲࡲࡓࡣࢰ࣭ࣝࢤࣝἲ࡞࡝ࡢࢯࣇࢺ໬Ꮫἲࣉࣟࢭࢫ࡟
ࡼࡾ LiTiPO 4 ᅛయ㟁ゎ㉁ᒙࢆ TiO 2 -TiN/Sn(O 2 )」ྜ⭷ୖ࡟ᯒฟࡉࡏࠊ㧗Ᏻ඲ᛶࡢ඲ᅛయ LIB ㈇ᴟᮦᩱ࡜ࡋ
࡚㟁Ẽ໬Ꮫ≉ᛶࢆホ౯ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 2.1 ࢔ ࣀ࣮ࢻ㓟໬࡟ࡼࡿ Ti ᯈ࡬ࡢࢼࣀ࣏࣮ࣛࢫ
TiO 2 -TiN/Sn ⣔」ྜ⭷ࡢస〇࠾ࡼࡧ LIB ㈇ᴟ࡜ࡋ࡚
ࡢ඘ᨺ㟁≉ᛶホ౯ 㸦ᢸᙜ㸸ྡྂᒇᕤᴗ኱Ꮫ㸧Fig.1 ࡟♧ࡍࡼ࠺࡟ࠊ◪㓟⣔㟁ゎᾮࢆ⏝࠸ࡓ࢔ࣀ࣮
ࢻ㓟໬ἲ࡟ࡼࡾࠊTi ⟩ୖ࡟⣽Ꮝ┤ᚄI0-80 nm ࢆᣢࡘࢼࣀ࣏࣮ࣛࢫ TiO 2 -TiO-TiN 」ྜ⓶⭷ࢆస〇ࡋࠊࡲࡓࠊ
Sn2+ ࡜ Sn4+ ࢖࢜ࣥࢆྵࡴ㓟ᛶ㟁ゎᾮ୰࡛ࣁ࢖ࣈࣜࢵ
ࢻ㟁Ẽࡵࡗࡁἲ࡟ࡼࡾࠊࡑࡢ」ྜ⓶⭷ࡢ⣽Ꮝෆ࠾ࡼࡧ⭷ୖ࡟ Sn ⣔≀㉁ࢆ㟁ᯒࡋࠊTiO 2 -TiN/Sn-SnO2 」ྜ
⭷ࢆస〇ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋ
CVᐃ࡟ࡼࡾ Li ࢖࢜ࣥ࡜ࡢ≉᭷࡞཯ᛂࣆ࣮ࢡࠊ

100

Fig.1 schematic drawings of (a)smart anodizing and (b) hybrid
electrodepositioninplating
solutions containing Sn2+ andSn4+ ions.

Sn-Li ྜ㔠໬཯ᛂ(~0.6 V), SnO 2 ࡜ Sn ࡜ࡢࢥࣥࣂ࣮ࢪࣙࣥ཯ᛂ(1.2 V)ࠊTiO2 ࡢ Li+ࡢᤄධ࣭⬺ᤄධ཯ᛂ(~1.7 V)ࡀ☜ㄆࡉࢀࡓࠋࡲࡓࠊ㟁Ẽ໬Ꮫ࢖ࣥࣆ࣮ࢲࣥࢫ ᐃ࡟ࡼࡾࠊSn⣔≀㉁ࡢᑟධ࡟ࡼࡾࠊTi ࢔ࣀ࣮ࢻ㓟໬⓶⭷ࡢᑟ㟁ᛶࡣ⣙㸲ಸᨵၿࡉࢀࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
ࡉࡽ࡟ࠊᐃ㟁ὶ඘ᨺ㟁ヨ㦂࡟ࡼࡾࠊࡑࡢ Ti/Sn ⣔」ྜ㓟໬⭷ࡣ๓㏙ࡢ Ti ⣔㓟໬⭷ࡼࡾ 8
㹼10 ಸࡢ㧗࠸ᐜ㔞ࢆ♧ࡋࠊࢧ࢖ࢡࣝࡢᏳᐃᛶࡶᨵၿ࡛ࡁࡓࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ

2.2 ࢰ࣭ࣝࢤࣝἲ࡟ࡼࡿ TiO 2 -TiN ⭷࡬ࡢ LiTiPO 4 ⭷ࡢస〇㸦ᢸᙜ㸸ྡྂᒇ኱Ꮫ㸧 ྡྂᒇ኱Ꮫࡢᢸᙜ⪅㸦ᙰ༤ኈ㸧ࡣࠊࢩ࣮ࢺ≧ࡢᅛయ㟁ゎ㉁⭷㸦ཌࡳ⣙ 1mm;సᡂ᪉ἲ࡜⤌ᡂࡣ୙ヲ㸧ࡀᥦ౪ࡋ࡚ࡃࢀࡓࠋࡋ࠿ࡋࠊྡᕤ኱ᢸᙜ⪅㸦㝞㸧ࡣୖ㏙ࡢ Ti/Sn ⣔」ྜ⭷ࢆస⏝ᴟ࡜ࡋࠊLi ⟩ࢆᑐ㟁ᴟ࡜ࡋ࡚༙㟁ụࢭࣝࢆ⤌❧࡚࡛ᐃ㟁ὶ඘ᨺ㟁ヨ㦂ࢆ⾜ࡗࡓࠊ㟁ụࡀసືࡋ࡞࠿ࡗࡓࠋࡑࡢཎᅉ࡜ࡋ࡚ࠊձࢩ࣮ࢺ≧ࡢᅛయ㟁ゎ㉁⭷࡜ Ti/Sn ⣔」ྜ⭷࡜ࡢ᥋ゐ᢬ᢠࡀ኱ࡁ࠸ࡢ࡛ࠊࢩ࣮ࢺ≧ࡢᅛయ㟁ゎ㉁⭷⮬యࡣ᢬ᢠࡀ኱ࡁ࠸㸦᢬ᢠ್୙ヲ㸧ࡇ࡜ࡀᣲࡆࡽࢀࡿ࡜⪃࠼࡚࠸ࡲࡍࠋ
௒ᚋࡢඹྠ◊✲࡟ࡘ࠸࡚ࠊᅛయ㟁ゎ㉁ࢆศᩓࡉࢀࡓᾮయࢆ฼⏝ࡋ࡚ࠊ๓㏙ࡢ Ti/Sn ⣔」ྜ⭷ࡢୖ࡟ࢼࣀࣞ࣋ࣝཌࡳࡢᅛయ㟁ゎ㉁⭷ࢆᡂ⭷ࡍࢀࡤࠊ㟁ụࡢసື࠾ࡼࡧ඘ᨺ㟁ヨ㦂࡟☜ᐇ࡛ࡁࡿ࡜⪃࠼࡚࠸ࡲࡍࠋ
ࡲࡓࠊ௒ᖺᗘ࡟ࡣࠊ୺࡟ྡ኱ᡤ᭷ࡢ XPS

ᐃ⿦⨨ࢆ฼⏝ࡉࡏ࡚࠸ࡓࡔࡁࡲࡋࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ “Direct Fabrication of TiO 2 -TiN/Sn-SnO 2 Composite Films on Ti Foils by Smart Anodizationand Hybrid Electrodeposition as High-Performance Anode Materials for Lithium-ion Battery”,
Xuewen Chen, Song-Zhu Kure-Chu, Yota Sakuma, Masazumi Okido, Reona Miyazaki, TakehikoHihara, Hitoshi Yashiro㸦J. Power Sources ࡬ᢞ✏‽ഛ୰㸧.

㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Yota Sakuma, Song-Zhu Kure-Chu, Takashi Matsubara, Takehiko Hihara, Masazumi
Okido, Hitoshi Yashiro, ͆ The Role of Anodic Titania Films in Fabricating
TiO 2 -TiN/Sn-SnO 2 Composite Films as Anode Materials for Lithium Ion Batteries,” The 3rdInternational Symposium on Anodizing Science and Technology (AST 2019), Awaji
Yumebutai International Conference Center, Awaji Island, Hyogo, Japan. June 2-5, 2019.
࣭Song-Zhu S. Kure-Chu, Takato Inoue, Xuewen Chen, Takehiko Hihara, Cong Peng,
Masazumi Okido, and Hitoshi Yashiro, “Tailored Fabrication of TiO 2 -TiN/Sn-SnO 2
Composite Films as High-Performance LIB Anode Materials”, ICMaSS 2019, Nagoya, Nov.
1-3, 2019.
࣭Song-Zhu Kure-Chu, Xuewen Chen, Yota Sakumaa,Takashi Matsubara, Takehiko Hihara,
Masazumi Okido, Hitoshi Yashiro, “Direct Fabrication of TiO 2 -TiN/Sn-SnO 2 Composite
Films on Ti Sheets as High-safety and Ultra-high Power Density LIB Anodes”, The 26th
Topical ISE Meeting in Tainan, Taiwan, March 29th -April 1st, 2020.㸦᪂ᆺ⫵⅖ࡢឤᰁᣑ኱

101࡟ࡼࡾ୰Ṇ࡜࡞ࡗࡓ㸧ࠋ࿋ ᯇ➉ ࠊ஭ୖ ㈗ᩯࠊ᪥ཎᓅᙪࠊ⯆⯆ᡞ ṇ⣧ ࠊࠕ㧗ᛶ⬟ LIB ㈇ᴟ࡟ྥࡅࡓ࣭㝞 㞷㞹ࠊ࿋
࢔ࣀ࣮ࢻ㓟໬࡜ࣁ࢖ࣈࣜࢵࢻࡵࡗࡁἲ࡟ࡼࡿ Ti ᯈ࡬ࡢ TiO 2 -TiN/Sn-SnO 2 」ྜ⭷ࡢ๰〇࠾ࡼࡧ≉ᛶホ౯ࠖࠊ⾲㠃ᢏ⾡༠఍➨ 140 ᅇ኱఍ࠊ2019 ᖺ 9 ᭶ 9-10 ᪥ࠊ⚟ᒸᕤᴗ኱Ꮫࠋࠕ㧗Ᏻ඲ᛶ࣭኱ᐜ㔞࣭㝞 㞷㞹ࠊ࿋ ᯇ➉ ࠊ஭ୖ ㈗ᩯࠊ᪥ཎᓅᙪࠊᙰ ⫄; ⯆ᡞ ṇ⣧ ࠊ
LIB ㈇ᴟྥࡅࡢ TiO 2 -TiN/Sn-SnO 2 」ྜ⭷ࡢ๰〇࠾ࡼࡧ㟁Ẽ໬Ꮫ≉ᛶホ౯ࠖࠊ௧࿴ඖᖺᗘ⾲㠃ᢏ⾡ⱝᡭ◊✲⪅࣭ᢏ⾡⪅◊✲஺ὶⓎ⾲఍ (⾲㠃ᢏ⾡༠఍୰㒊ᨭ㒊) 2019 ᖺ 11
᭶ 1 ᪥ࠊྡྂᒇ኱Ꮫࠋ⯆ᡞ ṇ⣧ 㸪ඵ௦ ோࠊࠕࣁ࢖ࣈࣜࢵࢻࡵࡗࡁࢆ⏝࣭ ஭ୖ ㈗ᩯ㸪࿋ ᯇ➉ 㸪᪥ཎ ᓅᙪ㸪⯆࠸ࡓ Al ୖ࡬ࡢ Li-V-Mn-Ni-O 」ྜ⭷ࡢ┤᥋ᙧᡂ࠾ࡼࡧ LIB ṇᴟ࡜ࡋ࡚ࡢ ≉ᛶホ౯ࠖࠊ㟁Ẽ໬Ꮫ఍➨ 60 ᅇ㟁ụウㄽ఍ࠊ 2019 ᖺ 11 ᭶ 13-15 ᪥ࠊᅜ❧ி㒔ᅜ㝿఍㤋ࠋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪≧ἣࠊྲྀᚓ≧ἣ㸸ヱᙜ࡞ࡋ㸦ᅜෆඃඛᶒ 30 ᮲ࢆ฼⏝ࡋ࡚ฟ㢪ࢆ⏦ㄳࡋࡓࡀࠊ༷
ୗࡉࢀࡓ㸧
ࠋ

102

ู⣬ᵝᘧ㸰㸫㸰࢚ࢿࣝࢠ࣮ࢹࣂ࢖ࢫ࡬ࡢᛂ⏝࡟ྥࡅࡓ㓟໬≀ࢼࣀࣈࣟࢵࢡ࠾ࡼࡧ㓄ิయࡢ≉ᛶゎᯒCharacteristic analysis of oxide nanoblocks for development of energy devices௒஭ᏹ࣭᫂៞᠕⩏ሿ኱Ꮫ࣭⌮ᕤᏛ㒊࣭ᛂ⏝໬Ꮫ⛉࣭ᩍᤵ㧗ᓮ⨾ᏹ࣭៞᠕⩏ሿ኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭≉ู◊✲ဨ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮦᩱ๰〇㒊㛛࣭ᩍᤵ  㸯㸬◊✲┠ⓗ ⇕㟁࣭⇞ᩱ㟁ụ࣭᣺ືⓎ㟁࡞࡝࡟⏝࠸ࡽࢀࡿࢹࣂ࢖ࢫࡢ㧗ຠ⋡໬ࡣ⌧ᅾࡢႚ⥭ࡢㄢ㢟࡛࠶ࡾࠊࡑࡢࡓࡵ࡟࢚ࢿࣝࢠ࣮ᮦᩱࡢ㧗ᶵ⬟໬࣭ࢧ࢖ࢬ⦰ᑠࡀồࡵࡽࢀ࡚࠸ࡿࠋࡑࡇ࡛
⏦ㄳ⪅ࡣࠊᅽ㟁ᛶ࣭㟁Ꮚఏᑟᛶ࣭࢖࢜ࣥఏᑟᛶ࣭☢ᛶ࡞࡝ࡢᶵ⬟ࢆ᭷ࡍࡿከᵝ࡞㓟໬≀ࡢ▴ᙧࢼࣀ⢏Ꮚ㸦ࢼࣀࣈࣟࢵࢡ㸧ࢆࠊᶵ⬟ࢹࣂ࢖ࢫࡢᵓᡂ༢఩࡜ࡋ࡚఩⨨࡙ࡅࠊ࣎ࢺ࣒
࢔ࢵࣉⓗ࡟⮬ᅾ࡟㓄ิࡉࡏࡿࡇ࡜࡛ࠊࣂࣝࢡ⤖ᬗࡢࣈࣞ࢖ࢡࢲ࢘ࣥᡭἲ࡛ࡣ㐩ᡂࡋ࠼࡞࠸ᶵ⬟ࢆⓎ⌧ࡉࡏࡿࡇ࡜ࢆ┠ᣦࡋ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟ࠊࢼࣀࣈࣟࢵࢡࡀ⤖ᬗ᪉఩ࢆࡑࢁ
࠼࡚㞟✚ࡋ࡚࠸ࡿ࣓ࢯࢡࣜࢫࢱࣝᵓ㐀ࢆస〇ࡍࡿࡇ࡜࡟ࡼࡿ㧗ᶵ⬟໬ࢆ┠ᣦࡋ࡚ࡁࡓ
ࡀࠊ≉ᛶ࡟኱ࡁࡃᐤ୚ࡍࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿࢼࣀ⤖ᬗ㛫ࡢṍࡸ⏺㠃࡟ࡘ࠸࡚ヲ⣽࡞᳨ウࡣᢏ⾡ⓗ࡟ᅔ㞴࡛࠶ࡗࡓࠋࡑࡇ࡛ඹྠ◊✲࡛ࡣࠊ㈗Ꮫࡢ᭷ࡍࡿ࣐࢖ࢡࣟࣉ࣮ࣟࣈ㢧ᚤ㙾ᢏ⾡ࢆᛂ⏝ࡋࠊࢼࣀࣈࣟࢵࢡ༢⊂ࡢ≉ᛶ࠾ࡼࡧᩘಶ༢఩࡛ࡢ⤖ྜ࡟ࡼࡿࢼࣀࢫࢣ࣮ࣝࡢ
≉ᛶࢆゎᯒࡋࠊከᵝ࡞ࢹࣂ࢖ࢫ㛤Ⓨ࡟࠶ࡓࡗ࡚ࡢᇶ♏ⓗ▱ぢࢆᚓࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 2019 ᖺᗘ࡟ࡣࠊࢼࣀࣈࣟࢵࢡ㓄ิయࡢᶵ⬟ホ౯࡜ࡋ࡚ࠊᙉㄏ㟁య࡛࠶ࡿ BaTiO3 ࢼࣀࣈࣟࢵࢡࡢつ๎㓄ิయ࡟ࡘ࠸࡚ SPM ࢆ⏝࠸ࡓㄏ㟁≉ᛶホ౯ࢆ⾜࠸ࠊࣂࣝࢡయࡼࡾࡶ኱
ࡁ࡞ẚㄏ㟁⋡ࡀ♧ࡉࢀࡓࠋࡲࡓࠊභゅᯈ≧ࢢ࢔ࢽࣥ⤖ᬗࡢ⛛ᗎ㓄ิ࡟ࡼࡗ࡚≉␗࡞ගᏛ≉ᛶࢆⓎ⌧ࡋ࡚࠸ࡿࢧࣇ࢕ࣜࢼࡢⓎⰍ㒊఩ࡢヲ⣽࡞ᵓ㐀ゎᯒࢆ⾜ࡗࡓࠋ㟁Ꮚ㢧ᚤ㙾࡟ࡼࡿほᐹ࠾ࡼࡧ㈗Ꮫࡢ㢧ᚤ࣐ࣛࣥศග⿦⨨ࢆ⏝࠸ࡓ ᐃ࡟ࡼࡗ࡚ࠊࢧࣇ࢕ࣜࢼࡢࡶࡘࢢ࢔
ࢽࣥ⤖ᬗ㞟✚యࡢᵓ㐀ࢆ⥔ᣢࡍࡿࣁࢽ࣒࢝≧ᯟࡀᏑᅾࡋࠊࡑࡢ≀㉁ࡀ࢟ࢳࣥ㉁࡛࠶ࡿࡇ
࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ
࠙BaTiO 3 ࢼࣀࣈࣟࢵࢡ㞟✚యࡢㄏ㟁≉ᛶホ౯ࠚ ᇶᯈୖ࡟ᚓࡽࢀࡓ✀ࠎࡢࢼࣀࣈࣟࢵࢡつ๎㓄ิయࡢ୰࡛ࠊ
ᙉㄏ㟁య࡛࠶ࡿ BaTiO 3 ࢼࣀࣈࣟࢵࢡ㓄ิయ㸦Fig. 1㸧࡟╔┠ࡋホ౯ࢆ⾜ࡗࡓࠋࢼࣀࣈࣟࢵࢡ༢ᒙ㞟✚య࡟ࡘ࠸࡚ࠊ㈗Ꮫࡢ᭷ࡍࡿ SPM ࢆ⏝࠸࡚ㄏ㟁 ᐃࢆ⾜ࡗࡓ࡜ࡇࢁࠊ⇕ฎ⌮᮲௳ࢆኚ᭦ࡍࡿࡇ࡜࡟ࡼࡗ࡚ࠊ᪤ሗ࡛ᚓࡽࢀ࡚࠸ࡓࣂࣝ

Fig. 1 ᇶ ᯈ ୖ ࡟ స 〇 ࡋ ࡓࢡࡢẚㄏ㟁⋡ࡼࡾࡶ㧗࠸⤖ᯝࡀᚓࡽࢀࡓ㸦Fig. 2a㸧ࠋࡉࡽ

BaTiO3 ࢼࣀࣈࣟࢵࢡ㓄ิయࠋ

103࡟ࠊศᩓᾮ᮲௳ࡢ᳨ウࢆ⾜࠺ࡇ࡜࡛ BaTiO 3 ࢼࣀࣈࣟࢵࢡࡢ 3 ḟඖつ๎㓄ิయస〇ࢆ㐩ᡂࡋࠊࡑࡢㄏ㟁≉ᛶホ౯ࡶ⾜ࡗࡓࠋ3 ḟඖ㓄ิయࡶ㧗࠸ẚㄏ㟁⋡ࢆ♧ࡋ㸦Fig. 2b㸧ࠊࢼࣀࣈࣟࢵࢡつ๎㓄ิయࡢඃ఩ᛶࡀ♧၀ࡉࢀࡓࠋᙉㄏ㟁ᛶࢼࣀࣈࣟࢵࢡ㓄ิయࡢẚㄏ㟁⋡ᐃ࡟ᡂຌࡋࡓࡶࡢࡢࠊࢼࣀࢫࢣ࣮ࣝࡢẚㄏ㟁 ᐃࡣ෌⌧ᛶࡀㄢ㢟࡛࠶ࡿࠋ௒ᚋࡣࠊ෌⌧ᛶࡢ☜ㄆࢆ⾜࠸ࠊ㓄ิᛶࡸᙧ≧࡞࡝ࡀㄏ㟁≉ᛶ࡟ཬࡰࡍᙳ㡪ࡢ᳨ウࢆ⾜࠺ணᐃ࡛࠶ࡿࠋ

Fig. 2 ༢ᒙ(a)࠾ࡼࡧ 3 ḟඖ(b)࡟つ๎㓄ิࡋࡓ BaTiO3 ࢼࣀࣈࣟࢵࢡ㞟✚యࡢㄏ㟁⋡ᐃ⤖ᯝࠋ࠙ࢧࣇ࢕ࣜࢼ࡟ࡳࡽࢀࡿࢢ࢔ࢽࣥࢼࣀ⤖ᬗつ๎㓄ิయࡢᵓ㐀ゎᯒࠚ⏦ㄳ⪅ࡣࡇࢀࡲ࡛࡟ࠊᵝࠎ࡞㓟໬≀ࢼࣀ⤖ᬗࡢ㓄ิయࡢస〇ࢆ⾜ࡗ࡚࠸ࡿࠋ⮬↛⏺࡟┠ࢆྥࡅࡿ࡜ࠊᾏὒᛶࣉࣛࣥࢡࢺ࡛ࣥ࠶ࡿࢧࣇ࢕ࣜࢼ㸦Fig. 3a㸧࡟ࢢ࢔ࢽࣥ⤖ᬗࡢつ๎㓄ิయࡀᏑᅾࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡑࡢࡓࡵࠊࢼࣀ⤖ᬗࡢつ๎㓄ิᵓ㐀ᙧᡂࡢᡭᮏ
࡜ࡋ࡚ࠊࢧࣇ࢕ࣜࢼࡢࢢ࢔ࢽࣥ⤖ᬗつ๎㓄ิᵓ㐀ࡢヲ⣽࡞ㄪᰝࢆ⾜ࡗࡓࠋ㟁Ꮚ㢧ᚤ㙾ほᐹ࡟ࡼࡾࠊࢧࣇ࢕ࣜࢼࡢⓎⰍ㒊఩࡟ࡣࠊභゅᯈ≧ࢢ࢔ࢽࣥ⤖ᬗࡢ㞟✚యࡢᏑᅾࡀ☜ㄆࡉࢀࡓ㸦Fig. 3b㸧
ࠋࡉࡽ࡟ࠊ⣧Ỉ࡟ࡼࡿฎ⌮ࢆࡍࡿ࡜ࠊࣁࢽ࣒࢝ᵓ㐀ࢆࡃࡾࡠ࠸ࡓࡼ࠺࡞ᯟᵓ㐀ࡀほᐹࡉࢀ㸦Fig. 3c㸧ࠊࡇࡢᯟᵓ㐀ࡣ㈗Ꮫࡢ㢧ᚤ࣐ࣛࣥศග⿦⨨࡟ࡼࡗ࡚࢟ࢳ࡛ࣥ࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓ㸦Fig. 3d㸧ࠋ㧗ᗘ࡟㓄ิࡉࢀࡓ㞟✚యࡀࠊᯟᵓ㐀࡟ࡼࡗ࡚⥔ᣢࡉࢀ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋ

Fig. 3 ࢧࣇ࢕ࣜࢼࡢගᏛ㢧ᚤ㙾ീ(a)࠾ࡼࡧᵓ㐀ⰍⓎ⌧㒊఩࡟ぢࡽࢀࡿࢢ࢔ࢽࣥ⤖ᬗ㓄ิయ(b)࠾ࡼࡧᯟᵓ㐀(c)࡜ࡑࢀࡽࡢ࣐ࣛࣥࢫ࣌ࢡࢺࣝ(d)ࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
“Guanine crystals regulated by chitin-based honeycomb frameworks for tunable structural
colors of sapphirinid copepod, Sapphirina nigromaculata” T. Kimura, M. Takasaki, R. Hatai, Y.
Nagai, K. Uematsu, Y. Oaki, M. Osada, H. Tsuda, T. Ishigure, T. Toyofuku, S. Shimode, H. Imai,
Sci. Rep., in press (2020).

104භ᪉ᬗ࣐ࣥ࢞ࣥ㓟໬≀࡟࠾ࡅࡿ㓟⣲྾ⶶ≉ᛶ࡜ᒁᡤᵓ㐀
Oxygen-storage behavior and local structure in hexagonal manganites᳃ⱱ⏕࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ᩍᤵሯᓮ⿱ᩥ࣭኱㜰ᗓ❧኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭≉ㄆຓᩍ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ㸦SW ࢦࢩࢵࢡయ㸧 ᙉㄏ㟁యࡸᙉ☢ᛶయࠊᙉᙎᛶయ࡞࡝ᙉⓗ⛛ᗎࢆ᭷ࡍࡿ≀㉁࡟࠾࠸࡚ࠊ⛛ᗎኚᩘࡢྥ
ࡁࡀᥞࡗࡓ㡿ᇦࢆࢻ࣓࢖ࣥ㸦ศᇦ㸧࡜࠸࠸ࠊ㞄᥋ࢻ࣓࢖ࣥࡢቃ⏺ࢆࢻ࣓࢖ࣥቃ⏺࡜࠸࠺ࠋ㏆ᖺࠊᙉㄏ㟁యࡸᙉᙎᛶయࡢࢻ࣓࢖ࣥቃ⏺࡟࠾࠸࡚ࠊ☢ᛶࠊㄏ㟁ᛶࡸ㉸ఏᑟ≉ᛶ࡞࡝ࣂࣝࢡᵓ㐀࡜␗࡞ࡿ≉␗࡞ᶵ⬟ᛶࡀⓎ⌧ࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ[1,2]ࠊࢻ࣓࢖ࣥቃ⏺࡟≉᭷࡞⤖ᬗᵓ㐀ࡸᶵ⬟ᛶࡢⓎ⌧࡟㛵ࡍࡿ◊✲ࡀ┒ࢇ࡟⾜ࢃࢀ࡚࠸ࡿ[3]ࠋᮏ◊✲࡛ࡣࠊᮏ≀㉁⣔ࡀ♧ࡍ㓟⣲྾ⶶ≉ᛶࡢⓎ⌧ᶵᵓࢆ᳨ウࡍࡿࡓࡵ࡟ࠊ௒ᖺᗘࡣභ᪉ᬗᙉㄏ㟁య HoMnO 3
࠾ࡼࡧ Mn ࢧ࢖ࢺࡢ୍㒊ࢆ Ti ࡛⨨᥮ࡋࡓ HoMn 1-x Ti x O 3+ț (x = 0 ~ 0.3)ࢆస〇ࡋࠊࡑࡢࢻ
࣓࢖ࣥᵓ㐀࠾ࡼࡧࢻ࣓࢖ࣥቃ⏺ࡢᒁᡤᵓ㐀࡟ࡘ࠸࡚ࠊ㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾ἲࢆ⏝࠸࡚◊✲ࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
HoMn 1-x Ti x O 3+ț (x = 0.3)ヨᩱࡢᐊ ࡛ᚓࡽࢀࡓ㟁Ꮚᅇᢡᅗᙧࢆ Fig.1a ࡟♧ࡍࠋᅇᢡᅗ
ᙧ୰࡟ࡣࠊ✵㛫⩌ P6 3 cm ࢆᣢࡘභ᪉ᬗᵓ㐀࡟ࡼࡿᅇᢡࢫ࣏ࢵࢺ࡟ຍ࠼࡚ࠊh k l+1/3 ఩⨨࡟㉸᱁Ꮚ཯ᑕࡀᏑᅾࡋ࡚࠸ࡿࠋゎᯒࡢ⤖ᯝࠊ⳻㠃యᬗᵓ㐀㸦R3c㸧࡟ࡼࡿᅇᢡࢫ࣏ࢵࢺ
࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽࠊx = 0.3 ࡛ࡣࠊභ᪉ᬗᵓ㐀࡜⳻㠃యᬗᵓ㐀ࡀ 2 ┦ඹᏑࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡇ࡛ࠊ2 ┦≧ែ࡟㛵ࡍࡿᚤ⣽ᵓ㐀ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ᬯど㔝ീࢆほᐹࡋࡓ⤖ᯝࠊ1 0 ࢫ࣏ࢵࢺࢆ⏝࠸࡚ᚓࡽࢀࡓᬯど㔝ീ㸦Fig.1b㸧࡟♧ࡍࡼ
࠺࡟ࠊP6 3 cm ᵓ㐀ࡣ R3c ᵓ㐀࡟ࡼࡿࢻ࣓࢖ࣥቃ⏺࡜ࡋ࡚Ꮡᅾࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ
ḟ࡟ࠊR3c ᵓ㐀ࡢ⤖ᬗᵓ㐀࡟㛵ࡍࡿ▱ぢࢆᚓࡿࡓࡵ࡟ࠊཎᏊศゎ⬟ HAADF-STEM ほᐹࢆ⾜ࡗࡓࠋFig.1c ࡟♧ࡍࡼ࠺࡟ࠊR c ᵓ㐀ࡣ Ho ཎᏊࡀ[001]㍈᪉ྥ࡟ 3 ಸ࿘ᮇࢆᣢࡘࡼ
࠺࡟ኚ఩ࢆࡋ࡚࠾ࡾࠊࡑࡢኚ఩ࣃࢱ࣮ࣥࡣ up-0-down ࣃࢱ࣮ࣥࢆᣢࡕࠊ཯㌿ᑐ⛠ᛶࢆ᭷ࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ୍᪉ࠊᙉㄏ㟁┦࡛࠶ࡿ P6 3 cm ᵓ㐀࡛ࡣࠊHo ཎᏊࡢኚ఩ࣃࢱ
࣮ࣥࡣ up-up-down㸦up-down-down㸧ࢆࡋ࡚࠾ࡾࠊ཯㌿ᑐ⛠ᛶࡀ◚ࢀ࡚࠾ࡾࠊ[001]㍈᪉
ྥ࡟ศᴟࡀ⏕ࡌࡿྍ⬟ᛶࡀࡿ.

105

[ཧ⪃ᩥ⊩][1] H. Yokota, et al., Phys. Rev. B 100, 024101 (2019).
[2] Sandra Van Aert, et al., Adv. Mater. 24, 523–527 (2012).
[3] H. Yokota, ᪥ᮏ⤖ᬗᏛ఍ㄅ 61㸪77-78㸦2019㸧.


Figure 1 HoMn 1-x Ti x O 3 (x = 0.3)ヨᩱࡢᐊ ࡛ᚓࡽࢀࡓ(a) 㟁Ꮚᅇᢡᅗᙧࠊ(b) ᬯど㔝ീ(c) HAADF-STEM ീ (d) ⳻㠃యᵓ㐀㸦✵㛫⩌;R3c㸧ࡢᵓ㐀ࣔࢹࣝ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭ෆᶫ◊ே࣭ሯᓮ⿱ᩥ࣭Ferrnando Cubillasm࣭▼ᶫᗈグ࣭ஂಖ⏣ెᇶࠊ▼஭ᝆ⾰࣭᳃ⱱ⏕, ,ᒣᓮ㡰, HoMn 1-x Ti x O 3 ࡢ≉␗࡞ࢻ࣓࢖ࣥᵓ㐀, ᪥ᮏࢭ࣑ࣛࢵࢡࢫ༠఍ 2020 ᖺᖺ఍ࠊ᫂἞኱Ꮫ㸦㥴Ἑྎ࢟ࣕࣥࣃࢫ㸧
ࠊ2020 ᖺ 3 ᭶ 18 ᪥㹼20 ᪥࣭ෆᶫ◊ே࣭ሯᓮ⿱ᩥ࣭Ferrnando Cubillasm࣭▼ᶫᗈグ࣭ஂಖ⏣ెᇶࠊ▼஭ᝆ⾰࣭᳃ⱱ⏕, ,ᒣᓮ㡰, HoMn1-xTixO3 ࡢ≉␗࡞ࢻ࣓࢖ࣥᵓ㐀ࡢ TEM ほᐹࠊ᪥ᮏ㢧ᚤ㙾Ꮫ఍➨ 76 ᅇᏛ⾡ㅮ₇఍ࠊ኱㜰ᅜ㝿஺ὶࢭࣥࢱ࣮ࠊ2020 ᖺ 5 ᭶ 25 ᪥㸻27 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭≉࡟࡞ࡋ106ู⣬ᵝᘧ㸰㸫㸰ග㐀ᙧࢭ࣑ࣛࢵࢡ⇕஺᥮ჾ࡬ࡢ㧗ຠ⋡໬ࢼࣀࢩ࣮ࢺࢥ࣮ࢺ
㸦࢔ࢹ࢕ࢸ࢕ࣈ࣭࣐ࢽࣗࣇ࢓ࢡࢳࣕࣜࣥࢢ࡟ࡼࡿᐇ⏝㒊ᮦ㐀ᙧ㸧Nanosheet Coating for Ceramic Heat Exchanger Fabricated by Stereolithography(Fabrication of Practical Materials Components by Additive Manufacturing)᱒ཎ⪽⚽࣭኱㜰኱Ꮫ࣭᥋ྜ⛉Ꮫ◊✲ᡤ࣭ᩍᤵ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ග㐀ᙧἲࡣࠊ᩿㠃ࢆ✚ᒙࡋ࡚❧యࢆᵓ⠏ࡍࡿ࢔ࢹ࢕ࢸ࢕ࣈ࣭࣐ࢽࣗࣇ࢓ࢡࢳࣕࣜࣥࢢ
ࡢ୍✀࡛࠶ࡿࠋ㔠ᒓࡸࢭ࣑ࣛࢵࢡࢫࡢࢼࣀᚤ⢏Ꮚࢆศᩓࡋࡓග◳໬ᛶᶞ⬡ࢆࠊ࢞ࣛࢫᇶ
ᯈୖ࡬ⷧࡃሬᕸࡋࠊ⾲㠃࡬ࡢ࣮ࣞࢨᥥ⏬ࡶࡋࡃࡣ࣐࢖ࢡࣟࣃࢱ࣮ࣥ㟢ග࡟ࡼࡾࠊ௵ពᙧ
≧ࡢ◳໬᩿㠃ࢆᙧᡂࡋࡘࡘࠊ✚ᒙ࡟ࡼࡾ」㞧ᙧ≧ࡢᵓ㐀యࢆ⢭ᐦస〇࡛ࡁࡿࠋᚓࡽࢀࡿ
」ྜᮦᩱࡢ๓㥑య࡟⬺⬡࠾ࡼࡧ↝⤖ฎ⌮ࢆ᪋ࡏࡤࠊ㔠ᒓࡸࢭ࣑ࣛࢵࢡࢫ〇ࡢᶵ⬟ᛶᵓ㐀యࡀᚓࡽࢀࡿࠋ௒ᖺᗘࡢ◊✲࡛ࡣࠊㄏ㟁యࡸᑟ㟁యࡢᚤ⣽᱁Ꮚ࡛ᵓᡂࡉࢀࡿ㟁☢Ἴࢹࣂ࢖ࢫࡸࠊᅛయ㟁ゎ㉁ࡢไᚚከᏍᵓ㐀ࢆ᭷ࡍࡿ࢚ࢿࣝࢠ࣮㈓ⶶ⣲Ꮚࢆస〇ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ග㐀ᙧࣉࣟࢭࢫ࡛ࡣࠊࡣࡌࡵ࡟ពᅗࡍࡿ
㸱ḟඖᵓ㐀ࢆࢥࣥࣆ࣮ࣗࢱࢢࣛࣇ࢕ࢵࢡࢫ
ᢏ⾡࡟ࡼࡾタィࡋࡓࠋࡇࡢ❧యᵓ㐀࡟ࢫࣛ࢖ࢫฎ⌮࡜࿧ࡤࢀࡿᩘ್₇⟬ࢆ᪋ࡋࠊ㸰ḟඖ᩿㠃ࡢ㞟ྜయ࡬࡜ኚ᥮ࡋࡓࠋᚓࡽࢀࡓᩘ
್ࢹ࣮ࢱࢆ㐀ᙧ⿦⨨࡬㏦ࡾࠊ࣮ࣞࢨᥥ⏬࡟㛵ࡍࡿ⢭ᐦືసࣉࣟࢢ࣒ࣛࢆタᐃࡋࡓࠋᐇ㝿ࡢ㸱ḟඖ㐀ᙧ࡟࠶ࡓࡾࠊᮦᩱ࡜ࡋ࡚
ග◳໬ᛶᶞ⬡ࢆ⏝࠸ࡓࠋᶞ⬡ᾮ㠃࡟⣸እ⥺࣮ࣞࢨࢆ↷ᑕࡋࡓ࡜ࡇࢁࠊᚤᑠ࡞◳໬㡿ᇦࡀᙧᡂࡉࢀࠊ↔Ⅼࢆ⛣ືࡉࡏࡿ࡜ࠊ㌶㊧࡟ᅗ㸯 ࣮ࣞࢨᥥ⏬᪉ᘧࡢග㐀ᙧࣉࣟࢭࢫᴫせἢ࠸⥺≧ࡢ◳໬≀ࡀᙧᡂࡉࢀࡓࠋࡇࢀࡽࢆ
ḟࠎ࡟ᥥ⏬ࡋ࡚௵ពᙧ≧ࡢⷧ࠸◳໬ᒙࢆᙧᡂࡋࡓࠋ⣸እ⥺࣮ࣞࢨࡢᥥ⏬ࣃࢱ࣮ࣥࡣࠊ๓
㏙ࡋࡓࢫࣛ࢖ࢫ₇⟬࡟࠾࠸࡚ᚓࡽࢀࡓࠊ㸰ḟඖ᩿㠃ࢹ࣮ࢱࢆࡶ࡜࡟సᡂࡋࡓࠋࢫࢸ࣮ࢪ
ୖ࡟➨㸯ᒙࢆᙧᡂࡋࡓᚋࠊࢫࢸ࣮ࢪࢆ୍ẁୗࡆࠊ➨㸰ᒙࢆᙧᡂࡍࡿ࡜ྠ᫬࡟ࠊ➨㸯ᒙ࡜᥋ྜࡋࡓࠋࡇࡢࡼ࠺࡞✚ᒙᕤ⛬ࢆ㡰ḟ⧞ࡾ㏉ࡋࠊ㧗ศᏊᮦᩱ࡛ᵓᡂࡉࢀࡿ㸱ḟඖᵓ㐀ࢆᚓࡓࠋᵓ㐀యࡢᑍἲ⢭ᗘࡣࠊ⣸እ⥺࣮ࣞࢨࡢࣅ࣮࣒ᚄࡸࠊ㧗ศᏊᒙࡢ✚ᒙ㛫㝸࡟ࡼࡾỴᐃࡋࡓࠋᮏ◊✲࡛⏝࠸ࡓ࣮ࣞࢨᥥ⏬᪉ᘧࡢග㐀ᙧ⿦⨨࡛ࡣࠊἼ㛗 355nm ࡢ⣸እ⥺࣮ࣞࢨࢆ⏝࠸࡚ࠊࣅ࣮࣒ᚄࢆ 50μm ࡟⤠ࡾ 50μm ࡢ✚ᒙ㛫㝸࡛㐀ᙧࡋࡓࠋ107ᾮయࡢග◳໬ᛶᶞ⬡࡟ᑐࡋ࡚ࠊ⢊య⢏Ꮚࢆయ✚๭ྜ࡛ 50% ศᩓࡋࡓ࡜ࡇࢁࠊὶືᛶ
ࡀῶᑡࡋ࣮࣌ࢫࢺ≧ࡢΰྜᾮࡀᚓࡽࢀࠊࢳࢡࢯᛶ࡜࿧ࡤࢀࡿ≉Ṧ࡞ࣞ࢜ࣟࢪ࣮≉ᛶࡀ⌧ࢀࡓࠋࢫ࣮ࣛࣜ࡟እ㒊࠿ࡽຊࢆ࠿ࡅ࡚࠸ࡿ㛫ࡣὶືᛶࢆ♧ࡋࠊእຊࡀ࡞ࡃ࡞ࡾ㟼Ṇࡉࡏࡽࢀࡓ≧ែ࡛ࡣࠊὶືᛶࡀపୗࡋᅛ໬ࡋࡓࠋࢳࢡࢯᛶ࣮࣌ࢫࢺࢆ⏝࠸ࡓග㐀ᙧἲࢩࢫࢸ
࣒ࢆ Fig. 1 (b) ࡟♧ࡍࠋᚤ⢏Ꮚࢆศᩓࡋࡓᶞ⬡࣮࣌ࢫࢺࢆᖹᯈୖ࡟౪⤥ࡋࠊὶືᛶࡢ࠶
ࡿ≧ែ࡛ࠊࢼ࢖ࣇ࢚ࢵࢪ࡟ࡼࡾཌࡉ 100μm ࡛ᖹ⁥࡟ሬᕸࡋࡓࠋ⣸እ⥺࣮ࣞࢨᥥ⏬࡟ࡼࡾ㸰ḟඖ◳໬ᒙࢆᙧᡂࡋࠊ✚ᒙᕤ⛬ࢆ⧞ࡾ㏉ࡍࡇ࡜࡛㸱ḟඖᵓ㐀ࢆᚓࡓࠋࡇࢀࡽ࡟⬺⬡࣭↝⤖ฎ⌮ࢆ᪋ࡋࠊ㔠ᒓ࡞ࡽࡧ࡟ࢭ࣑ࣛࢵࢡࢫ〇ࡢᵓ㐀య࡬㌿᥮ࡋࡓࠋ ࢖ࢵࢺࣜ࢔Ᏻᐃ໬ࢪࣝࢥࢽ࢔࡜ࢽࢵࢣࣝ࠿ࡽᵓᡂࡉࢀࡿ⇞ᩱ㟁ụ⏝㟁ᴟࡣࠊ㧗࠸㟁Ꮚ࣭࢖࢜ࣥఏᑟ⋡࡜ࠊ㧗 సື⎔ቃୗ࡛ࡢ໬Ꮫ࣭ᶵᲔⓗᏳᐃᛶࢆවࡡഛ࠼ࠊ⇞ᩱᴟ࡟ᗈࡃ᥇⏝ࡉࢀ࡚࠸ࡿࠋస〇ࡋࡓࢭ࣑ࣛࢵࢡ〇࣐࢖ࢡࣟ᱁Ꮚࢆᅗ㸰࡟♧ࡍࠋᗈ࠸㟁ᴟ㠃✚࡜Ⰻዲ࡞ὶయ㏱㐣≉ᛶࢆ♧ࡍࡼ࠺タィࡋࠊ୙⣧≀ࡢΰධࡀ࡞࠸⦓ᐦ⤌⧊ࢆ᭷ࡍࡿࡇ࡜࠿ࡽࠊ
⇞ᩱ㟁ụࡢ㟁ᴟ࡜ࡋ࡚㧗ฟຊ໬ࡀᮇᚅ࡛ࡁࡿࠋࣇ࢛ࢺࢽࢵࢡ⤖ᬗࡣࠊᑟ㟁యࡲࡓࡣㄏ㟁యࡢ࿘ᮇⓗ࡞ࣃࢱ࣮ࣥࢆ᭷ࡋࠊᅇᢡ࡟ࡼࡾ㟁☢Ἴࡢఏᦙ᪉ྥࢆไᚚ࡛ࡁࡿࠋస〇ࡉࢀࡓࠊ⣧㖡〇ࡢࢲ࢖ࣖࣔࣥࢻᆺࣇ࢛ࢺࢽࢵࢡ⤖ᬗࢆᅗ㸱࡟♧ࡍࠋᚤ⣽࡞㔠ᒓ᱁Ꮚࡀ✵㛫ᒎ㛤ࡋࠊ㸱ḟඖⓗ࡞࿘ᮇᵓ㐀ࡀ㐩ᡂࡉࢀ࡚࠸ࡿࠋ㟁☢Ἴࡢ㏱㐣ࢫ࣌ࢡࢺࣝࢆィ ࡍࡿ࡜ࠊ࿘Ἴᩘ
0.38㹼0.49THz ࡛㏱㐣⋡ࡀᛴ⃭࡟ῶ⾶ࡋࠊᅇᢡຠᯝࡀ☜ㄆࡉࢀࡓࠋ

ᅗ㸰 ⇞ᩱ㟁ụ⏝ࢪࣝࢥࢽ࢔〇࣐࢖ࢡࣟ᱁Ꮚ

ᅗ㸱 㟁☢Ἴᅇᢡ⏝⣧㖡〇࣐࢖ࢡࣟ᱁Ꮚ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
1. Soshu Kirihara, Stereolithographic Additive Manufacturing of Ceramic Components with
Functional Geometries, 1st Global Forum on Smart Additive Manufacturing, Design &Evaluation, 1-3 September 2019, Osaka.
2. Minoru Osada, Smart Additive Manufacturing Using 2D Materials, 1st Global Forum on
Smart Additive Manufacturing, Design & Evaluation, 1-3 September 2019, Osaka.
3. 㛗⏣ᐇ㸪↓ᶵࢼࣀࢩ࣮ࢺ࡛ࡘࡃࡿ᪂ࡋ࠸ഴᩳᶵ⬟ᮦᩱ㸪➨ 29 ᅇഴᩳᶵ⬟ᮦᩱࢩ࣏ࣥ
ࢪ࣒࢘㸪2019 ᖺ 11 ᭶ 26 ᪥㹼27 ᪥㸪኱㜰㸬
4. ᱒ཎ⪽⚽㸪ΎỈ㑣ᘺ㸪ఀ⸨❳ஓ㸪᳜ᮧὈᣅ㸪ࢭ࣑ࣛࢵࢡ㒊ᮦࡢ┤᥋ 3D 㐀ᙧ࡜㟁☢
ሙไᚚ࡬ࡢᛂ⏝㸪➨ 29 ᅇഴᩳᶵ⬟ᮦᩱࢩ࣏ࣥࢪ࣒࢘㸪2019 ᖺ 11 ᭶ 26 ᪥㹼27 ᪥㸪኱㜰㸬

108ู⣬ᵝᘧ㸰㸫㸰␗✀ࢼࣀ᥋ྜ࡟ࡼࡿᶵ⬟⏺㠃ࡢ๰〇
Development of functional interfaces by dissimilar nano-joining㜿㒊ᾈஓ࣭኱㜰኱Ꮫ࣭᥋ྜ⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵ
㛗⏣ ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ᅛయ㓟໬≀ᙧ⇞ᩱ㟁ụ㸦SOFC㸧ࡢ㟁ᴟࡣ୍⯡࡟」ྜከᏍ㉁⭷࡛࠶ࡾࠊ㟁Ẽ໬Ꮫ཯ᛂሙࡣ㟁ᴟゐ፹ᮦᩱࠊ㟁ゎ㉁ᮦᩱ࠾ࡼࡧẼᏍ㸦࢞ࢫᣑᩓ⤒㊰㸧ࡢ஺ࢃࡿ᥋ྜ⏺㠃ࠊࡍ࡞ࢃࡕ୕┦⏺㠃࡛࠶ࡿࠋࡇࡢ୕┦⏺㠃ࡢቑ኱ࡣ㟁ᴟᛶ⬟ࡢྥୖࢆࡶࡓࡽࡍࠋ⏦ㄳ⪅ࡽࡣࡇࢀࡲ࡛ࠊ࠶ࡽ࠿ࡌࡵᾮ┦୰࡛㟁ᴟゐ፹ᮦᩱ࡜㟁ゎ㉁ᮦᩱࢆࢼࣀ࡛ࣞ࣋ࣝ᥋ྜ࣭」ྜ໬ࡋࠊ
ࡇࡢ」ྜࢼࣀ⢏Ꮚࡢ✚ᒙከᏍ㉁໬࡟ࡼࡿ୕┦⏺㠃ࡢቑ኱ࢆヨࡳࡓࠋࡑࡢ⤖ᯝࠊYSZ ࣮࣋ࢫࡢ SOFC ࡟࠾࠸࡚ࠊᚑ᮶ᢏ⾡࡜ẚ࡭࡚ᑡ࡞ࡃ࡜ࡶ 5 ಸୖࠊ㟁ᴟ཯ᛂ᢬ᢠࡀపୗࡍ
ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ ᮏ◊✲࡛ࡣࠊከ✀ከᵝ࡞㟁ᴟᵓ㐀࠾ࡼࡧ」ྜࢼࣀ⢏Ꮚࢆ௚ࡢ㒊ᮦ࡟ᛂ⏝ࡍࡿࡓࡵࡢࣉ
ࣟࢭࢫᇶ┙ᢏ⾡࡜ࡋ࡚ࠊࢺࢵࣉࢲ࢘ࣥⓗ࡞࢔ࢭࣥࣈࣜᢏ⾡࡛࠶ࡿࢲ࢖ࣞࢡࢺ࣭࢖ࣥࢡ࣭
ࣛ࢖ࢸ࢕ࣥࢢἲ㸦DIW㸧ࡢ㛤Ⓨࢆ㐍ࡵࡓࠋDIW ࡜ࡣࠊࢤࣝ໬ࡉࡏࡓࢥࣟ࢖ࢻศᩓ⣔ࡢ㐃⥆ⓗ࡞ᢲࡋฟࡋࢆ 3 ḟඖⓗ࡟᧯సࡍࡿࡇ࡜࡟ࡼࡗ࡚ࠊࣇ࢕࣓ࣛࣥࢺ≧ࡢࢥࣟ࢖ࢻࢤࣝ
ࡀ✚ᒙࡋࡓᵓ㐀యࢆ┤᥋ᥥ⏬ࡍࡿ᪉ἲ࡛࠶ࡿࠋࡇࡢᢏ⾡࡟࠾࠸࡚≉࡟㔜せ࡞ࢥࣟ࢖ࢻࡢ
ࢤࣝ໬ᡭἲ࡟ࡘ࠸᳨࡚ウࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ࣭DIW ⏝ࢤࣝ໬タィ㸦㸯㸧ࢥࣟ࢖ࢻࢤࣝࢆ౑ࡗ࡚ 3D ࣉࣜࣥࢸ࢕ࣥࢢࢆ⾜࠺ሙྜࠊࢥࣟ࢖ࢻࢤࣝࡣ⮬㔜࡟ࡼࡗ࡚ኚᙧࡋ࡞࠸⛬ᗘࡢ๛ᛶࢆᚲせ࡜ࡍࡿࠋ୧➃ᨭᣢᱱࣔࢹࣝࢆ⏝࠸ࡓ⡆༢࡞ィ⟬࡟ࡼࡿ࡜ࠊ
ࢥࣟ࢖ࢻࢤࣝࡢࡏࢇ᩿ᙎᛶ⋡ G’ࡀ 2,000Pa ௨ୖ࡛࠶ࢀࡤࠊ3 ḟඖᵓ㐀యࡢస〇ࡀྍ⬟࡜࡞ࡿࠋNozzleColloid gel
10mm

Fig.1 A 3D colloidal periodic structure of NiO/YSZ nanoparticles.

109㠀࢖࢜ࣥᛶࢺࣜࣈࣟࢵࢡࢥ࣏࣐࣮ࣜ(poloxamer 407ࠊ௨ୗ p-407)ࢆ฼⏝ࡍࡿ࡜⡆౽࡟Ỉ⣔ࢥࣟ࢖ࢻࢆࢤࣝ໬࡛ࡁࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࢥࣟ࢖ࢻࡢࢤࣝ໬ࡢࡓࡵ
࡟ p-407 ࡢ㐺ᛂᛶࢆ᳨ウࡋࡓࠋࡑࡢ⤖ᯝࠊ↓ᶵࢼࣀ⢏Ꮚࡢศᩓ࡟ᚲせ࡞⏺㠃άᛶ๣ࢆ᭱
㐺࡟ῧຍࡋࡓሙྜࠊG’㸼2,000Pa ࢆ㐩ᡂ࡛ࡁࡓࠋ୍᪉ࠊ㐣๫࡟ῧຍࡋࡓሙྜࠊࢼࣀ⢏Ꮚ࡟྾╔ࡋ࡚࠸࡞࠸ࣇ࣮ࣜ࡞⏺㠃άᛶ๣ࡀ F127 ࡜␯Ỉᛶ┦஫స⏝࡟ࡼࡗ࡚ศᏊ࡛ࣞ࣋ࣝ
⤖ྜࡋࠊ⤖ᯝ࡜ࡋ࡚ࢤࣝ໬ࢆ㜼ᐖࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓࠋࡇࡢ⤖ᯝ࡟ᇶ࡙࠸࡚ࠊ௦
⾲ⓗ࡞ SOFC ࢔ࣀ࣮ࢻᮦᩱ࡛࠶ࡿ NiO-YSZ 」ྜࢼࣀ⢏ᏊࡢỈ⣔ࢥࣟ࢖ࢻࢆࢤࣝ໬ࡋࠊ
DIW ࡟ࡼࡿ 3 ḟඖ᱁Ꮚᵓ㐀యࢆస〇ࡋࡓࠋࡇࡢᵓ㐀యࡣᚑ᮶ᢏ⾡ࡼࡾ㧗ẼᏍ⋡໬ࢆ㐩ᡂ࡛ࡁࡿ࡜࡜ࡶ࡟࢞ࢫᣑᩓ࡟ዲ㐺࡞㐃⤖ẼᏍࢆᥦ౪ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋ࣭DIW ⏝ࢤࣝ໬タィ㸦㸰㸧 ࣐ࢡࣟศᏊ㞟ྜయࢆ⏝࠸࡚ࠊ↓ᶵࢼࣀ⢏Ꮚࡢ㞟✚ࣃࢱ࣮ࣥࢆࢺࢵࣉࢲ࢘ࣥⓗ࡟ᥥࡃᡭἲࢆ㛤Ⓨࡋࡓࠋ࣐ࢡࣟศᏊ㞟ྜయ࡜ࡣࠊࡇࡇ࡛ࡣ᭷ᶵศᏊࡀᾮ┦୰࡛┦ศ㞳ࡋ࡚ᙧᡂࡉ
ࢀࡓ࣐ࢡࣟࢫࢣ࣮ࣝ࡞ᵓ㐀య࡛࠶ࡿࠋࢯࣇࢺ࣐ࢸࣜ࢔࡛ࣝ࠶ࡿࡓࡵ࡟ᰂ㌾ᛶࢆ♧ࡋࠊእຊ࡟ࡼࡗ࡚ᐜ᫆࡟ᙧ≧ࡀኚ໬ࡍࡿࠋࡇࡢ࣐ࢡࣟศᏊ㞟ྜయࢆኚᙧ⮬ᅾ࡞ࢸࣥࣉ࣮ࣞࢺ࡜
ࡋ࡚⏝࠸ࡓࠋ✀ࠎࡢ᪉ἲ࡟ࡼࡾᯒฟࡋࡓ࣐ࢡࣟศᏊ㞟ྜయࢆ↓ᶵࢼࣀ⢏Ꮚ࡜」ྜ໬ࡋࠊ㸰ḟඖ㸭㸱ḟඖࣃࢱ࣮ࣥࢆࢺࢵࣉࢲ࢘ࣥⓗ࡟┤᥋ᥥ⏬ࡋࡓࠋ⥆࠸࡚ࠊ࣐ࢡࣟศᏊ㞟ྜయࡢࡳࢆ㝖ཤࡋࠊࢼࣀ⢏Ꮚ࠿ࡽᡂࡿ㞟✚ࣃࢱ࣮ࣥࢆᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋࡇࡢ᪉ἲ࡟ࡼࡾࠊ
CNT ࡢ㓄ྥࣃࢱ࣮ࣥࡢᙧᡂࡶᚓࡿࡇ࡜ࡀ࡛ࡁࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Hiroya Abe㸪Shinya Yamanaka㸪Minoro Osada, Isotropic and anisotropic crystalline
growth of magnetite nanostructures in polyol㸪International conference on materials andsystems for sustainability 2019 (ICMaSS2019), Nagoya Japan, 2019 ᖺ 10 ᭶ 3 ᪥̿4 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

110ู⣬ᵝᘧ㸰㸫㸰ཎᏊ⭷/ศᏊ⭷ࣁ࢖ࣈࣜࢵࢻࢩࢫࢸ࣒࡛ࡢ㟁Ꮚ࡜ࣇ࢛ࣀࣥࡢఏᑟࢆไ
ᚚࡍࡿ᪂つ㧗ຠ⋡⇕㟁ⷧ⭷ࡢ๰⏕Fabrication and characterization of Hybridge atomic films for efficient flexible
Thermo-Electric systemሯ㉺୍ோ࣭NIMS࣭WPI-MANA࣭JSPS ◊✲ဨ࣭MANA ୺௵◊✲⪅㝞ಇ⥔࣭ᅜ❧ྎ‴኱Ꮫᮦᩱ⛉Ꮫ࣭≉⪸ᩍᤵ㛗⏣ ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ㸦SW ࢦࢩࢵࢡయ㸧 ༢ᒙཎᏊ⭷ࢆከ㔜✚ᒙࡋࡓከ᥋ྜ⭷ࡢࣇ࢛ࣀࣥఏ㐩࡜㟁Ꮚఏᑟࡣࠊ✚ᒙ⭷㛫᥋ྜࡢᙉࡉ࡛Ỵࡲࡿࠋᚑ᮶ࠊኳ↛ཎᏊ⭷ࡢཎᏊ⭷㛫㝸ࢆᗈࡆࡿࡓࡵ࡟ࠊཎᏊ⭷ࢆ୍᪦ศ㞳ࡋ࡚⁐ᾮศᩓศᏊࡸ⮬ᕫ⤌⧊໬㸰D ᭷ᶵ⭷ࢆཎᏊ⭷㛫ᮦ࡜ࡋ࡚෌ᗘⷧ⭷࡜ࡍࡿࡇ࡜࡛ࠊ㠉᪂ⓗ࡞⇕㟁≉ᛶࢆ᭷ࡍࡿ⭷ࢆᚓࡿࡇ࡜ࢆ┠ᣦࡋ࡚࠸ࡿࠋࡇࡢ᥋ྜ࡛ࠊࣇ࢛
ࣀࣥఏ㐩ࡢᢚไ࡜㟁Ꮚఏᑟࡢ᭱኱໬ࢆ┠ᣦࡋ࡚ࠊ⏬ᮇⓗ࡛ࣇࣞ࢟ࢩࣈࣝ࡞㉸㧗ຠ⋡⇕㟁≉ᛶ⭷ࡢᙧᡂࢆ≺࠺ࠋᮏ◊✲࡛ࡣࠊ㸰ࡘࡢ㔜せ࡞ᢏ⾡㛤ⓎࢆせࡍࡿࠋཎᏊ⭷࡜㏆᥋᭷ᶵ⭷࡜ࡢ㟁Ⲵ࡞ࡽࡧ࡟ࣇ࢛ࣀࣥࡢὶࢀࡢᇶ♏≀ᛶゎ᫂࡜ไᚚ࡛࠶ࡾࠊゎ᫂ࡉࢀࡓᇶ♏≀ᛶ࡟ᇶ࡙ࡃሬᕸ
ᢏ⾡࡛ࡢᡂ⭷㛤Ⓨ࡛࠶ࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ㸦SW ࢦࢩࢵࢡయ㸧 ሬᕸ࡛〇⭷࡛ࡁࡿ᭷ᶵ↓ᶵ࣌ࣟࣈࢫ࢝࢖ࢺ 2 ḟඖ⭷ࡣࠊ᩿㠃⇕㐽᩿ຠ⋡ࡀᴟࡵ࡚㧗࠸ࡇ࡜࡛▱ࡽࢀ࡚࠸ࡿࠋࡇࡢ᭷ᶵ↓ᶵ࣌ࣟࣈࢫ࢝࢖ࢺ
⭷ࢆࢼࣀࢩ࣮ࢺ✚ᒙ⭷ࡢᒙ㛫ᮦᩱ࡜ࡋ࡚ᤄධࡍࡿࡇ࡜࡛ࠊࣇ࢛ࣀࣥ࡜
㟁Ⲵࡢఏ㐩ࢆ㧗ᗘ࡟ไᚚࡍࡿࡇ࡜
ࢆ┠ᣦࡋ࡚࠸ࡿࠋ
TiO 2 㸰ḟඖࢼࣀࢩ࣮ࢺ࡜ ᭷ᶵ↓ᶵ࣌ࣟࣈࢫ࢝࢖ࢺ 2 ḟඖ⭷ࡢ✚ᒙ✚ᒙ᥋ྜࢆసࡾࠊ⏺㠃࡛ࡢ㟁Ⲵఏᑟࡢࢲ࢖ࢼ࣑ࢵࢡࢫィࢆᐇ᪋ࡋࡓࠋ㟁ᅗ 1㸬TiO2㸰ḟඖࢼࣀࢩ࣮ࢺ࡜᭷ᶵ↓ᶵ࣌ࣟࣈࢫ࢝࢖ࢺ 2 ḟඖ⭷ࡢ⏺㠃࡛ࡢ㟁Ⲵఏᑟࡢࢲ࢖
ࢼ࣑ࢵࢡࢫィ

ࠋ㸦ඹⴭⓎ⾲ㄽᩥ ACS Appl.

Mater. Interfaces 2019, 11, 24, 21473-21480
ࡼࡾ.㸧

Ⲵࡢᚤどⓗ࡞᣺⯙࠸ほᐹࡢࡓࡵࠊ᫬
㛫ศゎ࣏ࣥࣉࣉ࣮ࣟࣈศගࢆ⾜ࡗࡓࠋཎᏊࢩ࣮ࢺ Ti 1-ț O 2 ࡢ୺Ḟ㝗࡛࠶ࡾὸ࠸࢔ࢡࢭ
ࣉࢱ࣮ࡀගᛂ⟅࡟᭱ࡶᩄឤ࡛࠶ࡿࡇ࡜ࢆゎ᫂ࡍࡿࡇ࡜ࡀ࡛ࡁࡓࠋࡉࡽ࡟ࠊ㟁Ꮚᣑᩓࠊ㟁Ꮚὀධࠊ࣍ࢵࢺ࣮࣍ࣝ⛣ືࣉࣟࢭࢫ➼ࡣ࢟ࣕࣜ࢔ࢲ࢖ࢼ࣑ࢡࢫ࡛ࡣࠊᙳ㡪ࡀᑠࡉ

111

࠸ࡇ࡜ࡶุ᫂ࡋࡓࠋ
ࡇࡢ᥋ྜ⏺㠃࡛ࡢ㟁Ⲵ⛣ືࢲ࢖ࢼ࣑ࢡࢫ᳨ฟ࡜ࠊ࣑ࢡࣟࣥཌ࡟〇⭷ࡋࡓ⭷࡛ࡢ⇕ఏᑟ≉ᛶィ࡜ࡢ⤌ࡳྜࢃࡏ࡟࡚ࠊ㟁Ⲵ࡜ࣇ࢛ࣀࣥࡢ᣺⯙ࢆಶࠎ࡟᭱㐺໬ࡋ࡚࠸ࡃࡇ

࡜ࡀྍ⬟࡜࡞ࡿࡣࡎ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ཎⴭㄽᩥ㸼㸦11pt ᫂ᮅయ, Times㸧
1. Origin of extended UV stability of 2D atomic layer titania-based perovskite solar cells
unveiled by ultrafast spectroscopy
A. P. Thilakan, J.-X. Li, T.-P. Chen, S.-S. Li, C.-W. Chen, M.Osada, K.Tsukagoshi,
T.Sasaki, A.Yabushita, K.-H. Wu, C.-W. Luo,$&6$SSOLHG0DWHULDOV ,QWHUIDFHV  í  
2. Wafer-Scale and Deterministic Patterned Growth of Monolayer MoS2 via
Vapor-Liquid-Solid Method,
S. Li, Y.-C. Lin, X.-Y. Liu, Z. Hu, J. Wu, H. Nakajima, S. Liu, T. Okazaki, W. Chen, T.
Minari, Y. Sakuma, K. Tsukagoshi, K. Suenaga, T. Taniguchi, M. Osada,
Nanoscale, 11‫ؚ‬16122-16129 (2019).
3. Tunable Chemical Coupling in Two-dimensional van der Waals-Electrostatic
Heterostructures,
T.Taniguchi, S.Li, H.Takehira, Y.Kobayashi, T.Saito, Y.Miyata, S.Obata, K.Saiki,
T.Taniguchi, K.Tsukagoshi,Y.Ebina, T.Sasaki, M.Osada,
ACS Nano 13 (10) 11214-11223 (2019). 㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧
1.Silicon-based Quantum Dot-Assisted Photon Management in Perovskite Solar Cells, (Invited)
Ying-Chiao Wang and Kazuhito Tsukagoshi
International Conference on Materials and Systems for Sustainability 2019 (ICMaSS2019)
Nagoya University, November 01-03, 2019.
2.Solution-processed organometallic quasi-2D nanosheet as hole buffer layer for organic
light-emitting devices with extend lifetime
S.Liu, Y.-C.Wang, T.Yasuda, K.Nakazato, H.Maeda, N.Fukui, P.Long, H.Nishihara,
K.Tsukagoshi,
A3 joint forum (঩র஻ইज़‫ش‬१ॖॺহ঵)Huangshan, Nanjing, China, November 22-25, 2019.
3.Resistance Switch as nanoscale element (Invited)
Kazuhito Tsukagoshi, Yukiya Umeta, Shushu Zheng, Yasuhisa Naitoh, Hiroshi Suga, Xing
Xu,
A3 joint forum (঩র஻ইज़‫ش‬१ॖॺহ঵)Huangshan, Nanjing, China, November 22-25, 2019.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ112ู⣬ᵝᘧ㸰㸫㸰㓟໬ⓑ㔠ࢼࣀࢩ࣮ࢺࡢ AFM ࡟ࡼࡿ⾲㠃≧ែほᐹObservation of Platinum Oxide nanosheets using AFM ⯪ὠ㯞⨾࣭⇃ᮏ኱Ꮫ኱Ꮫ㝔࣭ඛ➃⛉Ꮫ◊✲㒊࣭ຓᩍⰼᮧ⣪⾰࣭⇃ᮏ኱Ꮫ኱Ꮫ㝔⮬↛⛉Ꮫ◊✲㒊࣭ಟኈ 1 ᖺᮌᮧ᝿࣭⇃ᮏ኱Ꮫ⌮Ꮫ㒊࣭Ꮫ㒊㸲ᖺ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ⇞ᩱ㟁ụࡢ㟁ᴟゐ፹࡜ࡋ࡚ࠊⓑ㔠ࡀከ⏝ࡉࢀ࡚࠸ࡿࠋ⌧ᅾࠊᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿⓑ㔠⢏Ꮚ㸦Pt/C㸧࡛ࡣࠊ཯ᛂ࡟ࡣࠊࡑࡢ⾲㠃ࡢࡳࡀ฼⏝ࡉࢀ࡚࠾ࡾࠊᬑཬࡉࡏࡿࡓࡵ࡟ࡣࠊ
ࡇࡢ㟁ᴟゐ፹࡛࠶ࡿ Pt/C ࡢ㔞ࢆῶᑡࡉࡏࡿᚲせࡀ࠶ࡿ࡜ゝࢃࢀ࡚࠸ࡿࠋᡃࠎࡣࠊ㧗ẚ⾲㠃✚ࢆᣢࡘ஧ḟඖᵓ㐀࡟ὀ┠ࡋ࡚࠸ࡿࠋࡋ࠿ࡋ࡞ࡀࡽࠊⓑ㔠ࢆ┤᥋ⓗ࡟஧ḟඖ໬ࡍࡿࡇ࡜ࡣ㠀ᖖ࡟㞴ࡋ࠸ࡓࡵࠊ᪂つ࡟ྜᡂࡋࡓᒙ≧໬ྜ≀࠿ࡽᚓࡽࢀࡿ㓟໬ⓑ㔠ࢼࣀࢩ࣮ࢺ
ࢆ฼⏝ࡋࠊࡇࢀ࡟ᡭࢆຍ࠼ࡿࡇ࡜࡟ࡼࡾ⢏Ꮚࡼࡾࡶάᛶࡀ㧗࠸ⓑ㔠ᮦᩱࢆぢฟࡍࡇ࡜ࢆ
┠ᣦࡋ࡚࠸ࡿࠋేࡏ࡚ࠊ௚ᮦᩱ࡜ࡢ」ྜ໬ࠊⓑ㔠ᛶ⬟௦᭰ရ㸦௚ඖ⣲࣮࣋ࢫᮦᩱ㸧࡞࡝ࡶ᳨ウࢆ㐍ࡵ࡚࠸ࡿࠋᮏᖺᗘࡣ᪂つ࡟ྜᡂࡋࡓୖグࢼࣀࢩ࣮ࢺཬࡧⓑ㔠௨እ࡛ࡢ᪂ࡋ࠸
ࢼࣀࢩ࣮ࢺࡢ≀ᛶ➼ࡢホ౯ࢆᐇ᪋ࡋࡓࠋ᭦࡟ࠊྜᡂ࡛ࡁࡓࢼࣀࢩ࣮ࢺ࡟㛵ࡋ࡚ࡣࠊ௒ᚋ
ࡢᶵ⬟ᛶࡢ᳨ウ࡟ࡘ࡞ࡆࡿࡓࡵ࡟ࠊin-situ ほᐹࡸࢹࣂ࢖ࢫຍᕤ࡟ࡘ࠸࡚ࡢྍ⬟ᛶࡶ᥈ࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
⌧ᅾࡲ࡛ሗ࿌ࡉࢀ࡚ࡁࡓ༢ᒙࡢ஧ḟඖ≀㉁࡛ࡣࠊ㈗㔠ᒓ࡜࿧ࡤࢀࡿඖ⣲ࢆ୰ᚰ㔠ᒓ࡜ࡋࡓᒙ≧໬ྜ≀㸦Ỉ㓟໬≀ࠊ㓟໬≀➼㸧ࡢሗ࿌౛ࡣ㠀ᖖ࡟ᑡ࡞࠸ࠋᵝࠎ࡞㈗㔠ᒓ⣔ࡢඖ⣲ࢆྵࡴẕ⤖ᬗࡢㄪᰝࡋࠊᒙ≧໬ྜ≀ࡢྜᡂ࠾ࡼࡧࡑࡢ๤㞳ࢆ᳨ウࡋࡓࠋ୰࡛ࡶࠊAxMO3
㸦A:㈗㔠ᒓ㸧ࡢࡼ࠺࡞ᵓ㐀ᣢࡘⓑ㔠㓟໬≀࡟ὀ┠ࡋࡓࠋࡇࡢᮦᩱࡣࠊ㈗㔠ᒓᅇ཰ࡸࣜࢳ
࣒࢘㟁ụࠊࢼࢺ࣒ࣜ࢘㟁ụ➼ࡢ㟁ᴟᮦᩱ࡜ࡋ࡚ࡣሗ࿌౛ࡀ࠶ࡿࡀࠊࢼࣀࢩ࣮ࢺ໬ࡉࡏࡓ
౛ࡣ࡞࠸ࠋᒙ㛫ࡢ⤖ྜຊࢆព㆑ࡋࠊᵝࠎ࡞๤㞳᳨ウࢆ⾜ࡗࡓ⤖ᯝࠊᅗ 1(a)ࡢࡼ࠺࡞ᵓ㐀ࢆᣢࡘࢼࣀࢩ࣮ࢺࢆᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋࡇࡢࢼࣀࢩ࣮ࢺࡢ㧗ศゎ⬟ീࡀ(d) ࡛࠶ࡾࠊฟⓎᮦᩱ࡛࠶ࡿᒙ≧໬ྜ≀ࡢ(001)㠃ࡢ༢⤖ᬗࢆ♧ࡍࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋຍ࠼࡚ࠊᮏ◊✲࡛ࡣࠊ㖡⣔ࡢࢼࣀࢩ࣮ࢺࡢྜᡂ࡟ࡶᡂຌࡋࡓ㸦ᅗ 2㸧
ࠋ
(a)

(b)

ਦ1(a) ݃ধϠυϩਦɾ(b)ഥ཯‫ޛ‬പۜ࢐Կ෼ψόεʖφAFM଀
113

ਦ2 ಖ‫ܧ‬ψόεʖφAFM଀ḟ࡟ࠊ༢ᒙ໬࡟ᡂຌࡋࡓࡶࡢ࡟ࡘ࠸࡚ࡢホ౯ࢆࠊ㛗⏣◊✲ᐊ࡛ほᐹᡭἲࡸຍᕤᢏ⾡࡟࠾࠸࡚ࠊࡈᣦᑟ࣭ࡈ༠ຊࢆ㡬ࡁ in-situ AFM ࠾ࡼࡧࢹࣂ࢖ࢫຍᕤࢆᐇ᪋ࡋࠊࡑࡢྍ⬟ᛶࢆ᥈ࡗࡓࠋ㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨㠀බ㛤⟠ᡤ㸨㸨㸨㸨㸨㸨㸨㸨㸨㸨࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Asami Funatsu, Sae Hanamura, International Conference on Materials andSystems for Sustainability (ICMaSS)㸪ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

114

ู⣬ᵝᘧ㸰㸫㸰ࢼࣀ࣮࢝࣎ࣥࡢ㟁Ẽ໬Ꮫⓗάᛶ໬࡟ࡼࡿ㧗ᛶ⬟ࣞࢻࢵࢡࢫ࢟ࣕࣃࢩ
ࢱࡢ๰〇High-performance nanocarbon capacitors activated by electrochemical reactions  ㇂ཱྀ㈗❶࣭≀㉁࣭ᮦᩱ࣭◊✲ᶵᵓ࣭ᅜ㝿ࢼࣀ࢔࣮࢟ࢸࢡࢺࢽࢡࢫ◊✲ᣐⅬ࣭୺௵◊✲ဨ㛗⏣ᐇ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ㻌 ࢢࣛࣇ࢙ࣥ⾲㠃ࢆ㓟⣲ᐁ⬟ᇶ➼࡛ಟ㣭ࡍࡿࡇ࡜࡟ࡼࡾࠊࣉࣟࢺࣥఏᑟࠊᙉ☢ᛶࠊ㟁Ẽ໬Ꮫࣞࢻࢵࢡࢫάᛶ࡞࡝ࠊ⣧⢋ࢢࣛࣇ࢙࡛ࣥࡣᚓࡽࢀ࡞࠸ከᵝ࡞ᶵ⬟ᛶࢆ♧ࡍࡇ࡜ࡀᡃࠎࡢ◊✲➼ࢆ㏻ࡋ᫂ࡽ࠿࡟࡞ࡗࡓࠋ࡜ࡃ࡟ࠊ㟁Ẽ໬Ꮫฎ⌮࡟ࡼࡾస〇ࡋࡓ㓟໬≀ࢢࣛࣇ࢙ࣥࡣ௚ࡢ㑏ඖἲ࡛ࡣぢࡽࢀ࡞࠸㧗⃰ᗘࡢ CH Ḟ㝗㸦࠶ࡿ࠸ࡣ࢚ࢵࢪⅣ⣲㸧ࡀࣞࢻࢵࢡࢫࢧ࢖ࢺ࡜࡞ࡾࠊᕧ኱࡞㟁Ẽ໬Ꮫ஧㔜ᒙᐜ㔞
>1000F/g ࢆ♧ࡍྍ⬟ᛶࡀ♧၀ࡉࢀ࡚࠸ࡿࠋࡇࡇ࡛ࡣᵝࠎ࡞ࢼࣀ࣮࢝࣎ࣥᮦᩱ࡟
ᑐࡋ࡚㟁Ẽ໬Ꮫฎ⌮ࢆ⾜࠸ࠊ㧗ᐜ㔞࣮࢝࣎ࣥ࢟ࣕࣃࢩࢱࡢ๰〇ࢆ┠ᣦࡍࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ 㟁ᴟୖ࡟ሁ✚ࡋࡓ㓟໬ࢢࣛࣇ࢙ࣥ࡟ Na 2 SO 4 ⁐ᾮ୰࡛-1.5V(Ag/AgCl)ࢆ༳ຍࡍࡿ
࡜ࠊ㧗㟁Ꮚఏᑟᗘࢆ♧ࡍ㓟໬ࢢࣛࣇ࢙ࣥ㑏ඖయࡀᚓࡽࢀࠊ⥆࠸࡚ࠊ2.5V(Ag/AgCl)࡛㓟໬ࡍࡿ࡜ࠊ෌㓟໬యࡀᚓࡽࢀࡿࠋࡋ࠿ࡋࠊࡇࡢࡼ࠺࡞෌㓟໬యࡣඖࡢ㓟໬ࢢࣛࣇ࢙ࣥ࡜ࡣ␗࡞ࡗࡓᵓ㐀ࢆ᭷ࡍࡿ࡜࠸࠺ᐇ㦂⤖ᯝࡀᮏ◊✲ࡢࢩ࣮ࢬ࡜࡞ࡗ
࡚࠸ࡿࠋࡑࡇ࡛ࠊࡇࡢ⌧㇟ࡀ௚ࡢ࣮࢝࣎ࣥᮦᩱ࡟ࡘ࠸࡚ࡶぢࡽࢀࡿ࠿ࢆ☜ㄆࡍࡿࡓࡵࠊ㓟໬ࢢࣛࣇ࢙ࣥ࡟ຍ࠼࡚ࠊࢣࢵࢳ࢙ࣥࣈࣛࢵࢡ➼ࠊᵝࠎ࡞࣮࢝࣎ࣥᮦ
ᩱ࡟ࡘ࠸࡚ྠᵝࡢ㟁Ẽ໬Ꮫฎ⌮ࢆ⾜ࡗࡓࠋ⤖ᯝ࡜ࡋ࡚ࠊ㓟໬ࢢࣛࣇ࢙ࣥ࡜ྠᵝࡢᐇ㦂⤖ᯝࡀᚓࡽࢀࠊᮏᡭἲ࣭⌧㇟ࡣ࣮࢝࣎ࣥᮦᩱ࡟ࡘ࠸࡚ỗ⏝ⓗ࡛࠶ࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓࠋࡉࡽ࡟ࠊ㟁Ẽ໬Ꮫ≉ᛶࢆྥୖࡉࡏࡿࡓࡵ࡟ࠊ㓟໬ࢢࣛࣇ࢙ࣥᐁ
⬟ᇶ࡟ Co2+ ➼ࡢ㑄⛣㔠ᒓ࢖࢜ࣥࢆ྾╔ࡉࡏࣞࢻࢵࢡࢫ✀࡜ࡋ࡚ά⏝ࡍࡿࡇ࡜ࢆ᳨ウࡋࡓࠋࡇࡇ࡛ࡣ࢟ࣕࣃࢩࢱホ౯࡟ຍ࠼ࠊ㓟⣲㑏ඖゐ፹࡬ࡢᛂ⏝࡟ࡘ࠸࡚ࡶ᳨ウࡋࡓࠋලయ࡞ࢧࣥࣉࣝస〇ᡭἲࢆ௨ୗ࡟♧ࡍࠋࡲࡎࠊ࣮࢝࣎ࣥ㟁ᴟୖ࡟㓟໬ࢢࣛࣇ࢙ࣥᠱ⃮ᾮࢆ⁲ୗࡋࠊ஝⇱ࡉࡏࡓࠋ⥆࠸࡚ࠊࡇࡢ㟁ᴟࢆ㑄⛣㔠ᒓሷỈ⁐ᾮ࡟ 10 ศ㛫ᾐₕࡉࡏࡓࠋ㓟໬ࢢࣛࣇ࢙ࣥࡢ㓟⣲ᐁ⬟ᇶ㸦OH, OOH㸧ࢧ࢖ࢺࡢH+ ࡟㑄⛣㔠ᒓ࢝ࢳ࢜ࣥࡀ⨨᥮ࡍࡿࡇ࡜࡛ࠊࣁ࢖ࣈࣜࢵࢻయࡀᚓࡽࢀࡿࠋࡇࡇ࡛
ࡣ㑄⛣㔠ᒓ࢖࢜ࣥ࡜ࡋ࡚ Co2+, Fe2+, Ni2+, Mn3+,Zr4+ࢆ᳨ウࡋࡓࠋࡑࡢ⤖ᯝࠊd0 㟁115Ꮚ≧ែ࡛࠶ࡿ Zr4+ࢆ⏝࠸ࡓሙྜࠊ࢔ࣝ࢝ࣜᛶ⁐ᾮࠊ㓟ᛶ⁐ᾮ୰࡟࠾࠸࡚᭱ࡶⰋዲ
࡞㓟⣲㑏ඖάᛶࡀᚓࡽࢀࡓࠋ⌧ᅾࡢ࡜ࡇࢁࣉ࣑ࣞࣜࢼࣝ࡞ᐇ㦂⤖ᯝࡋ࠿ᚓࡽࢀ
࡚࠸࡞࠸ࡶࡢࡢࠊZr4+ࡀࢼࣀ࣮࢝࣎ࣥࡢ㟁Ẽ໬Ꮫάᛶ໬࡟Ⰻዲ࡞ຠᯝࢆ୚࠼ࡿࡇ
࡜ࡣሗ࿌ࡉࢀ࡚࠾ࡽࡎࠊ᪂ࡓ࡞▱ぢ࡜࠸࠼ࡿࠋ௒ᚋࠊZr4+ࡢ྾╔࣓࢝ࢽࢬ࣒ࠊ྾
╔≧ែࠊ㓟໬ࢢࣛࣇ࢙ࣥ࡜ࡢ㟁Ẽ┦஫స⏝࡟ࡘ࠸࡚ࡉࡽ࡟᳨ウࢆ㐍ࡵࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ཎⴭㄽᩥ㸼࣭↓ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼 ヱᙜ↓ࡋ࣭↓ࡋ㸺⏘ᴗ㈈⏘ᶒ㸼 ヱᙜ↓ࡋ
࣭↓ࡋ

116

ู⣬ᵝᘧ㸰㸫㸰┬࢚ࢿࣝࢠ࣮ᆺ࢚ࣥࢪࣥࡢ᤼Ẽί໬ゐ፹ࡢ◊✲
Development of exhaust-treatment catalysts for the energy saving engines◊✲௦⾲⪅ ⩚⏣ᨻ࣭᫂ྡྂᒇᕤᴗ኱Ꮫ ඛ㐍ࢭ࣑ࣛࢵࢡࢫ◊✲ࢭࣥࢱ࣮࣭ᩍᤵ
◊✲ศᢸ⪅ ୰ᮧᝆ୍㑻࣭ྡྂᒇᕤᴗ኱Ꮫ ⏕࿨࣭ᛂ⏝໬Ꮫᑓ
ᨷ࣭D3◊✲ᡤᢸᙜᩍဨ ᭹㒊ᑗ᭸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ㺃ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ◊✲ᡤᢸᙜᩍဨ ᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ㺃ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ┬࢚ࢿࣝࢠ࣮ᆺ࢚ࣥࢪࣥࡢ௦⾲ⓗ࡞⇞↝ᶵჾ࡜ࡋ࡚ᕼⷧ⇞↝ᘧࡀᗈࡃ฼⏝ࡉࢀ࡚࠸ࡿࠋ
⮬ື㌴ࢆࡣࡌࡵᑠᆺ࢚ࣥࢪ࡛ࣥࡣࠊ᤼Ẽ୰᭷ᐖᡂศ NOx ࢆ྾ⶶࡋ㑏ඖࡍࡿࢱ࢖ࣉࡢゐ፹ࡀ฼⏝ࡉࢀ࡚࠾ࡾࠊ⌧≧᭱ࡶ᭷ຊ࡞ᡭẁ࡛࠶ࡿࠋࡋ࠿ࡋࠊ㧗ᗘᇦ࡛ࡢί໬ᛶ⬟ࡢపୗࡀၥ

㢟࡛࠶ࡾࠊゐ፹ᮦᩱࡸࡑࡢୖ࡛ࡢί໬཯ᛂไᚚࡀㄢ㢟࡛࠶ࡿࠋᮏ◊✲࡛ࡣࡇࢀࡲ࡛࡟ࢼࣀ
࡛ࣞ࣋ࣝࡢゐ፹タィ࣭ゐ፹ᵓ⠏࡟ᇶ࡙࠸ࡓゐ፹ᮦᩱ㛤Ⓨࢆ᳨ウࡋ࡚࠾ࡾࠊゐ፹㛤Ⓨᡭἲ࡜ࡋ࡚☜❧ࡋ࡚ࡁ࡚࠸ࡿࠋࡉࡽ࡟ࡣࠊ⎔ቃί໬ゐ፹ࡢࡳ࡞ࡽࡎࠊᵝࠎ࡞ศ㔝ࡢゐ፹ᮦᩱ㛤Ⓨ࡬ࡢᒎ㛤ࢆᮇᚅࡍࡿࡇ࡜ࡀ࡛ࡁࡿ࡜⪃࠼࡚࠸ࡿࠋᚑ᮶ࡢຠᯝ࡛ᕼᑡ࡞㈗㔠ᒓ࡟ຍ࠼᪂つ࡞ゐ፹ᡂศࠊලయⓗ࡟ࡣ࢖ࣜࢪ࣒࢘➼ࡢ㑄⛣㔠ᒓ㢮࡟╔┠ࡋ࡚ࠊࡇࢀࡽάᛶᡂศ࡜㓟໬≀ᢸయ࡜ࡢ┦஫స⏝ࢆไᚚࡋࡓゐ፹ᮦᩱࢆస〇ࡋࠊ㧗 ᗘᇦ࡛ࡢ NOx ί໬ᛶ⬟ࡢⓎ⌧ࢆ┠ᣦࡍࠋ㟁Ꮚ㢧ᚤ㙾ほᐹࡸࣉ࣮ࣟࣈศᏊࢆ⏝࠸ࡓ⾲㠃≧ែゎᯒ࠿ࡽࠊゐ፹ᛶ⬟࡜ࡢ㛵㐃ᛶࢆ⪃ᐹࡋࠊ᭱㐺࡞ゐ፹άᛶⅬᵓ㐀࡟㛵ࡍࡿ▱ぢࢆ๰ฟࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
᤼࢞ࢫί໬ゐ፹ࡣࠊ୍⯡࡟άᛶ࡞㈗㔠ᒓ✀࡜㓟໬≀ᢸయ࠿ࡽᵓᡂࡉࢀࡿࡀࠊゐ፹ᡂศࡢ⤌ࡳྜࢃࡏ࡟ࡼࡾᛶ⬟ࡣ኱ࡁࡃ␗࡞ࡿࠋࡇࢀࡣ㈗㔠ᒓ࡜ᢸయࡢ┦஫స⏝࡟ࡼࡿࡶࡢ࡛
࠶ࡾࠊࡇࡢ┦஫స⏝ࢆ᭱㐺໬ࡍࡿࡇ࡜࡟ࡼࡾゐ፹ࡢ㧗ᶵ⬟໬ࡢᐇ⌧ࡀᮇᚅ࡛ࡁࡿࠋࡑࡇ
࡛ᮏ◊✲࡛ࡣࠊάᛶ࡞ゐ፹ᡂศ࡜ࡋ࡚࢖ࣜࢪ࣒࢘࡟╔┠ࡋࠊ࢖ࣜࢪ࣒࢘ゐ፹ࡢᶵ⬟ࢆ᭱኱㝈Ⓨ᥹ࡉࡏࡿࡓࡵ࡟㓟໬≀ᢸయ࡜ࡢ┦஫స⏝࡟ࡘ࠸࡚ヲ⣽࡞᳨ウࢆᐇ᪋ࡋࡓࠋලయⓗ࡟ࡣᵝࠎ࡞㓟໬≀࡟࢖ࣜࢪ࣒࢘ࢆᢸᣢࡋࡓゐ፹ࢆㄪ〇ࡋࠊࡑࢀࡽࡢゐ፹άᛶࢆホ౯ࡍࡿ࡜࡜ࡶ࡟ࠊin situ FT-IR ࡞࡝ࡢศගἲࡸ TPR/TPO ࡞࡝ࡢ࢟ࣕࣛࢡࢱࣜࢮ࣮ࢩࣙࣥᡭἲࢆ
⏝࠸ࡓ⾲㠃ゎᯒࡸ཯ᛂゎᯒࢆ⾜ࡗࡓࠋ ᐇ㦂࡜ࡋ࡚ࡣࠊ୰࿴ỿẊἲ࡟ࡼࡾ Al2O3ࠊCeO2ࠊZrO2ࠊCeO2-ZrO2 ࢆࠊࡲࡓࢰࣝࢤࣝ
ἲ࡟ࡼࡾ SiO2 ࢆㄪ〇ࡋࡓࠋᚓࡽࢀࡓᢸయ⢊ᮎ࡟ᑐࡋ࡚◪㓟࢖ࣜࢪ࣒࢘⁐ᾮࢆྵᾐࡉࡏࠊ

117✵Ẽ୰ࠊ600qC ࡛ 5 ᫬㛫⇕ฎ⌮ࢆ⾜࠸ࠊゐ፹ヨᩱ࡜ࡋࡓࠋXRD

ᐃ࡟ࡼࡾ⤖ᬗ┦ࡢྠᐃࢆ⾜࠸ࠊࡲࡓ❅⣲྾╔ἲ࡟ࡼࡿ BET ẚ⾲㠃✚ ᐃࢆ⾜ࡗࡓࠋỈ⣲᪼ 㑏ඖ㸦H2-TPR㸧ᐃ࡟ࡼࡾゐ፹ࡢ᪼ 㑏ඖᣲືࢆࠊࡲࡓ H2-TPR ᚋࡢヨᩱ࡟ࡘ࠸࡚᪼ 㓟໬㸦TPO㸧ᐃ ࠿ ࡽゐ ፹ࡢ 㓟໬ ᣲືࢆ ホ ౯ࡋ ࡓ ࠋ ゐ፹ άᛶ ࡣ ᅛ ᐃᗋ ὶ㏻ ᘧ཯ ᛂ⿦⨨ ࢆ ⏝࠸ ࠊ
NO/CO/C3H6/O2/H2O/He ࠿ࡽ࡞ࡿΰྜ࢞ࢫࢆὶ㏻ࡉࡏ࡚ホ౯ࡋࡓࠋ཯ᛂ୰࡟⏕ᡂࡍࡿ྾╔✀ࡢᣲືࡣ in situ FT-IR ࡟ࡼࡾᣑᩓ཯ᑕࢭࣝࢆ⏝࠸࡚ほᐹࡋࡓࠋ ✀ࠎࡢᢸయ࡟ᢸᣢࡋࡓ࢖ࣜࢪ࣒࢘ゐ፹ࡢ୕ඖゐ፹άᛶࡣᢸయ࡟ࡼࡾ኱ࡁࡃ␗࡞ࡾࠊ
SiO2 ࡟ᢸᣢࡋࡓゐ፹ࡀ᭱ࡶ㧗άᛶࢆ♧ࡋࡓࡢ࡟ᑐࡋࠊCeO2 ࡟ᢸᣢࡋࡓゐ፹ࡢάᛶࡀ᭱
ࡶపࡃ࡞ࡗࡓࠋH2-TPRᐃࡼࡾࠊ࢖ࣜࢪ࣒࢘ࡢ㑏ඖࡀప ࡛㉳ࡇࡾࡸࡍ࠸࡯࡝ࠊ㧗࠸ゐ፹άᛶࢆ♧ࡍഴྥࡀぢࡽࢀࡓࡀࠊ᫂░࡞┦㛵ᛶࡣᚓࡽࢀ࡞࠿ࡗࡓࠋ୍᪉࡛ࠊTPOᐃ࠿ࡽࡣࠊ࢖ࣜࢪ࣒࢘ࡢ㔠ᒓ≧ែ࡛ࡢᏳᐃᛶࡀ㧗࠸ゐ፹άᛶࢆⓎ⌧ࡍࡿࡓࡵ࡟ࡣ㔜せ࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡉࡽ࡟ in situ FT-IRᐃ࡟࠾࠸࡚྾╔ CO ✀ࡢᣲືࢆほᐹࡋࡓ࡜ࡇࢁࠊ཯ᛂ୰࡟ IrG+ я Ir0 ࡢ redox ࡀ㉳ࡇࡗ࡚࠸ࡿࡇ࡜ࠊ࢖ࣜࢪ࣒࢘ࡀᢸయ࡜࠶ࡲ
ࡾᙉࡃ┦஫స⏝ࡋ࡞࠸ࡇ࡜ࡀάᛶⓎ⌧࡟⧅ࡀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ ௨ୖࡢ⤖ᯝࡼࡾࠊάᛶ㔠ᒓ✀࡟࡜ࡗ࡚㐺ษ࡞ᢸయࢆ㑅ᢥࡍࡿࡇ࡜࡟ࡼࡾࠊ㔠ᒓ㸫ᢸయ㛫ࡢ┦஫స⏝ࢆไᚚࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊ㧗άᛶ࣭㧗ᶵ⬟࡞┬㈨※ᆺ⎔ቃί໬ゐ፹ᮦᩱࡢ㛤Ⓨ࡟⧅ࡀࡿྍ⬟ᛶࡀ♧၀ࡉࢀࡓࠋゐ፹ࡢάᛶⅬᵓ㐀ࢆ᭱㐺໬ࡍࡿࡇ࡜࡟ࡼࡿάᛶ
ྥୖ࡟ࡼࡾప ᇦ࡛ゐ፹ᶵ⬟ࡀⓎ⌧ࡋࠊ┬࢚ࢿࣝࢠ࣮ᆺ⎔ቃί໬ゐ፹࡬ࡢᒎ㛤ࡀᮇᚅ࡛ࡁࡿࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ ≉࡟࡞ࡋ

118

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  0122ู⣬ᵝᘧ㸰㸫㸰㔠ᒓ࢞ࣛࢫࡢ⤌⧊ไᚚ࡟ࡼࡿỈ⣲྾ⶶᮦᩱࡢ◊✲Study on hydrogen absorption of metallic glass-derived nanomaterialsᒣᾆ┿୍࣭⫋ᴗ⬟ຊ㛤Ⓨ⥲ྜ኱Ꮫᰯ࣭⬟ຊ㛤Ⓨ㝔࣭෸ᩍᤵ᭹㒊ᑗ᭸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍᑠ⃝ṇ㑥࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ㸦SW ࢦࢩࢵࢡయ㸧 ᮏ◊✲࡛ࡣࠊ㔠ᒓ࢞ࣛࢫ࠿ࡽ⤌⧊ไᚚࡋࡓ⎔ቃί໬ᮦᩱࢆస〇ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚ඹྠ◊✲ࢆ⾜࠸ࠊ᪂ࡓ࡟ࡇࡢᮦᩱ࡛ࡢỈ⣲྾ⶶᛶࡸ⎔ቃί໬ᛶࢆぢฟࡍࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ㸦SW ࢦࢩࢵࢡయ㸧 ᛴ෭࣓ࣝࢺࢫࣆࢽࣥࢢἲ࡟ࡼࡾᡤᮃ⤌ᡂࡢ㔠ᒓ࢞ࣛࢫࢆస〇ࡋࠊ400㹼1000Υࠊ✵Ẽ୰࡛ࠊ㓟໬ࠊ⤖ᬗ໬ࡉࡏࡓࠋXRD

ᐃ࡟ࡼࡾヨᩱࡢ⤖ᬗ┦ࡢྠᐃࢆ⾜ࡗࡓࠋࡲࡓࠊPt➼ࡢ㏣ຍࡢඖ⣲ࢆྵࡴ ZrPdPt ⣔࡯࠿ࡢ㔠ᒓ࢞ࣛࢫࢆฟⓎᮦᩱ࡜ࡋ࡚ࡑࢀࡽ࠿ࡽㄏᑟࡉ
ࢀࡓ」ྜᮦᩱࢆస〇ࡋࠊゐ፹ᇶ♏≉ᛶ࡜ࡋ࡚୺࡟Ỉ⣲྾཰ᨺฟ≉ᛶࢆㄪ࡭ࡓࠋࡉࡽ࡟ࠊ
ゐ፹ᮦᩱ࡬ࡢᛂ⏝ࡢྍ⬟ᛶ࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓࠋ
XRDᐃࡢ⤖ᯝ࠿ࡽࠊ⇕ฎ⌮ࡋࡓヨᩱࡢ୺࡞⤖ᬗ┦ࡣ PdO ࡜ ZrO2 ࡛࠶ࡗࡓࠋࡲࡓࠊ
SEM ࢆ⏝࠸࡚ヨᩱࡢᙧែཬࡧ⤌⧊ࡢほᐹࢆ⾜ࡗࡓࠋ࡜ࡇ㹰ࠊᆒ୍࡞ᯒฟ≀ศᕸࡀほᐹࡉࢀࡓࠋEM-EDX ศᯒࡢ⤖ᯝ࠿ࡽࡇࢀࡽࡢᯒ
ฟ≀ࡣ Pd ࡶࡋࡃࡣ Pd ࠶ࡿ࠸ࡣ㔠ᒓ≧ែࡢ⢏Ꮚ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓࠊẕ┦ࡣᏳᐃ࡞ ZrO2 ࢭ࣑ࣛࢵࢡ࡛࠶ࡾࠊ⡆༢࡞ฎ⌮ἲ࡛ࢼࣀ⢏Ꮚࢆẕ┦⾲㠃࡟ᅛᐃࡋࡓࢧ࣮࣓ࢵ
ࢺ⤌⧊ࢆᙧᡂࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ
Ỉ⣲྾ⶶ≉ᛶࢆ PCT

ᐃ࡟ࡼࡾホ౯ࡋࠊ

ࣃࣛࢪ࣒࢘ᙜࡓࡾỈ⣲⁐ゎ㔞ࡀồࡵࡓࠋࡇࡢ
ᮦᩱࡢ≉ᚩ࡜ࡋ࡚ࠊࡸࡸ྾ⶶ㔞ࡢపୗࡀࡳࡽ
ࢀࡓࡶࡢࡢࠊపᅽ᮲௳࡛Ỉ⣲⁐ゎ㔞ࡢቑ኱ࡀぢࡽࢀࡓࠋࡉࡽ࡟ࠊ௒ᖺᗘࠊỈ⣲ࡼࡾࡉࡽ࡟
௚ࡢᡂศ࡟ᒎ㛤ࡋ࡚ࠊࡍࡍ㸦࢚ࣥࢪࣥ᤼࢞ࢫ
Fig.1. SEM images of Zr65Pd35
sample after heat treatment at
800 °C for 3 h in air.

࠿ࡽ᤼ฟࡉࢀࡿ⢏≧Ⅳ⣲≀㉁㸧ࡢప⇞↝ࢆࡡࡽࡗ࡚ࡇࢀࡽࡢฎ⌮ᮦୖ࡟ࠊࣔࢹࣝࡍࡍ⢊ࢆῧຍࡋ࡚⇞↝άᛶࢆㄪ࡭ࡓࠋ

123

ヲࡋࡃ᳨ウࡍࡿࡓࡵࠊ◊✲ᐊෆ࡛సᡂࡋࡓගᏛ㢧ᚤ㙾ࢩࢫࢸ࣒࡛ࡑࡢሙほᐹࢆ⾜࠸ࠊࡍࡍ⇞↝㐣⛬ࢆほᐹࡋࡓࠋ୍ᐃ᪼ ୗ࡛ࡢ⇞↝ ᗘ ᐃࡢ⤖ᯝࠊ⇞↝ࡢࡓࡵࡢ㛤ጞ ᗘࡣࣔࢹࣝࢭ࣑ࣛࢵࢡࢫ㒊ศ㸦࢔࣑ࣝࢼ㸧࡜ẚ࡭࡚኱ᖜ࡟ప ໬ࡋࠊ᪼ ᚋ࡟᏶඲࡟㝖ཤࡉࢀ࡚ࡺࡃᵝᏊࢆほᐹ࡛ࡁࡓࠋࡲࡓࠊSEM ほᐹࡶ⾜ࡗࡓ࡜ࡇࢁࠊࡍࡍจ㞟⢏⾲㠃࠿ࡽ⇞↝ࡀጞࡲࡿᵝᏊࡶほᐹࡋࡓࠋάᛶ࡞⾲㠃ࡀᙧᡂࡉࢀࡓᮦᩱࡀ๰〇ࡉࢀࡓ࡜⪃࠼࡚࠸ࡿࠋᮦᩱࡢస〇ࡸᛶ⬟ホ౯ࡢ⤖ᯝ࡟ࡘ࠸࡚ࡣㄽᩥ࡟ࡲ࡜ࡵᢞ✏୰࡛࠶ࡿࠋ
ࡲࡓࠊ⌧ᅾࠊỈ⣲྾ⶶᛶࢆά࠿ࡋࡓ᭷ᐖ࢞ࢫᡂศί໬άᛶ࡟ࡘ࠸࡚ࡶㄪᰝ୰࡛࠶ࡾࠊ
ணഛⓗᐇ㦂࡛ࡣ࠶ࡿ⛬ᗘࡢί໬ᛶ⬟ࡀ♧၀ࡉࢀ࡚࠸ࡿࠋ௒ᚋࠊࡉࡽ࡟ヲ⣽࡟᳨ウࡋࠊᚤ⣽ᵓ㐀࡜ᛶ⬟ࡢ㛵ಀࢆㄪᰝࡍࡿணᐃ࡛࠶ࡿࠋࡲࡓࠊࡇࡢࡼ࠺࡞ࢧ࣮࣓ࢵࢺ⤌⧊ࡣゐ፹ᮦᩱࡢᇶᮏⓗ࡞⤌ࡳྜࢃࡏ࡛࠶ࡿࡢ࡛ࠊ⢭ᐦ࡞⤌⧊ไᚚࢆ⾜࠼ࡤࠊỈ⣲྾ⶶᛶ࡟࡜࡝ࡲࡽ
ࡎࠊᗈࡃ᪂ࡓ࡞ゐ፹ᮦᩱ࡜ࡋ࡚ࡢᛂ⏝ࡀᮇᚅ࡛ࡁࡿࠋ
࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ཎⴭㄽᩥ㸼
࣭Masakuni Ozawa, Atsuhiko Masuda, Maki Nakamura, Masatomo Hattori, Hidemi Kato,
Shin-ichi Yamamura, Soot-combustion catalyst of Pd/ZrO2 composites prepared from
Zr65Pd35 amorphous alloy by oxidation treatment, Japanese Journal of Applied Physics ᢞ✏୰㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭ ᭹㒊ᑗ᭸㸪᱇ᕝ┤㸪ᒣᾆ┿㸪ᑠ⃝ṇ㑥㸪Zr2Pd ⣔㔠ᒓ࢞ࣛࢫ࠿ࡽㄏᑟࡉࢀࡓ」ྜゐ፹ࡢ⤌⧊࡜୕ඖゐ፹≉ᛶࠊ➨ 125 ᅇゐ፹ウㄽ఍ࠊ2019 ᖺ 3 ᭶ 26 ᪥㹼27 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

124

ู⣬ᵝᘧ㸰㸫㸰Ỉศゎගゐ፹ࡢ๻ⓗ࡞άᛶྥୖࢆ┠ᣦࡋࡓ᪂つಟ㣭ἲࡢ㛤Ⓨ
Development of new modification methods aiming at remarkable improvement ofphotocatalytic activity for water splittingຍ⸨ⱥᶞ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵ
Hong Phong DUONG࣭ᮾ໭኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭M2
ዟ㔝࿴ဢ࣭ᮾ໭኱Ꮫ኱Ꮫ㝔࣭ᕤᏛ◊✲⛉࣭M2ᑠᯘு࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ගゐ፹࡟ࡼࡿỈศゎࡣ㸪ኴ㝧ගỈ⣲〇㐀ࡢೃ⿵ᢏ⾡࡜ࡋ࡚⯆࿡ࡀᣢࡓࢀ࡚࠸ࡿࠋࡋ࠿
ࡋ࡞ࡀࡽ㸪Ỉศゎගゐ፹ࡢኴ㝧ග࢚ࢿࣝࢠ࣮ኚ᥮ຠ⋡ࡣࡲࡔࡲࡔప࠸ࣞ࣋ࣝ࡟࡜࡝ࡲࡗ
࡚࠾ࡾ㸪Ỉศゎගゐ፹ࡢᐇ⏝໬ࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣ㠉᪂ⓗ࡞ຠ⋡ྥୖࡀồࡵࡽࢀ࡚࠸ࡿࠋ
Ỉศゎගゐ፹◊✲ࡣ᪂ࡋ࠸ගゐ፹᥈⣴࡟ࡼࡾⓎᒎࡋ࡚ࡁࡓࡀ㸪ࡇࡢ 10 ᖺ⛬ࡣ᪂ࡋ࠸ග
ゐ፹㛤Ⓨ࡟ࡼࡿ┠ぬࡲࡋ࠸Ⓨᒎࡣぢࡽࢀ࡚࠸࡞࠸ࠋ᪂つගゐ፹㛤Ⓨࡀ㔜せ࡞◊✲ㄢ㢟࡛࠶ࡿࡇ࡜࡟ኚࢃࡾࡣ࡞࠸ࡶࡢࡢ㸪㠉᪂ⓗ࡞㧗ᶵ⬟໬ࢆᐇ⌧ࡍࡿ᪂ࡋ࠸ᡭἲ࣭᪉ἲㄽࡢ☜❧ࡀ㔜せ࡛࠶ࡿࠋᮏ◊✲࡛ࡣ㸪๻ⓗ࡞㧗άᛶ໬ࢆ┠ᣦࡋ࡚᪂つ࡞ගゐ፹ಟ㣭ἲࡢ㛤Ⓨࢆ⾜ࡗࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 Z ࢫ࣮࣒࢟࡜࿧ࡤࢀࡿ஧ẁ㝵ບ㉳ᆺගゐ፹⣔࡛ࡣỈ⣲⏕ᡂ࡜㓟⣲⏕ᡂࢆ஧✀㢮ࡢග
ゐ፹ࡀศᢸࡍࡿࡇ࡜࡛Ỉศゎࡀ㐍⾜ࡍࡿࠋࡑࡢࡓࡵ㸪༢⊂࡛ࡣỈศゎ࡟୙άᛶ࡞ගゐ፹࡛ࡶỈศゎ࡟฼⏝ࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋRh
ࢻ࣮ࣉ SrTiO 3 㸦SrTiO 3 :Rh㸧ࡣ Fe3+/2+ ࡸ

Table 1 Activity for Z-scheme water splitting
using SrTiO3:Rh, BiVO4, and Fe3+/2+ redox
couplecocatalysts[Co(bpy) 3 ]3+/2+ ࡞࡝ࡢ㓟໬㑏ඖᑐࢆ㟁Ꮚఏ㐩๣࡟⏝࠸ࡿ Z ࢫ࣮࣒࢟⣔࡛Ỉ⣲⏕ᡂගゐ፹࡜ࡋ࡚฼⏝ࡉࢀࡿྍどගᛂ⟅ᆺࡢගゐ፹࡛࠶ࡿࠋࡇࢀࡲ࡛㸪ග㟁╔ࡋࡓ Ru
㸦Ru(pd)㸧ࡀ᭱㐺࡞ຓゐ፹࡜ࡋ࡚฼⏝ࡉࢀ࡚ࡁࡓࠋᮏ◊✲࡛ࡣ㸪᭦࡞ࡿ㧗άᛶ໬ࢆ┠ᣦࡋ࡚ Ru(pd)࡟ຍ࠼࡚㸪➨஧ᡂศᚤ⢏Ꮚࡢྵᾐἲ࡟ࡼࡿಟ㣭㸦M(imp)㸧ࢆ᳨ウࡋࡓ
㸦Table 1㸧ࠋAg, Pd ࢆඹᢸᣢࡋࡓሙྜ㸪άᛶࡣ Ru(pd)ࡢࡳࢆᢸᣢࡋࡓ࡜ࡁ࡟ẚ࡭࡚పୗࡋࡓࠋ୍᪉㸪Ru, Rh, Au ࢆྵᾐἲඹᢸ
ᣢࡍࡿ࡜㸪Ru(pd)ࡢࡳࢆᢸᣢࡋࡓ࡜ࡁ࡟ẚ1

125evolution rate / μmol h–1
H2

O2

none

0

0.2

Ru(pd)

84

42

Ru(imp)43

20

Ru(pd)-Ru(imp)

166

82

Rh(imp)28

13

Ru(pd)-Rh(imp)

134

67

Ru(pd)-Pd(imp)28

14

Ru(pd)-Ag(imp)15

7

Au(imp)2

3

Ru(pd)-Au(imp)

116

58

M F (SO )

H24

pd)
Ru(pd

Ru(pd)-Ru(imp)Ru(pd)-Au(imp)
Au
Ru

10 nm

10 nm

10 nm

Fig. 1 TEM images of SrTiO3:Rh modified with Ru(pd), Ru(pd)-Ru(imp), and Ru(pd)-Au(imp).

࡭࡚άᛶࡣ 1.5-2 ಸ࡟ྥୖࡋࡓࠋ
M(imp)ࡢࡳࢆᢸᣢࡋࡓ㝿ࡢάᛶࡣ Ru(pd)࡟ẚ࡭࡚పࡃ㸪≉࡟ Au(imp)ࡣ࡯ࡰ୙άᛶ࡛࠶ࡗࡓࠋࡇࡢࡇ࡜࠿ࡽ Ru(pd)-M(imp)ඹᢸᣢ࡟ࡼࡿάᛶࡢ
ྥୖࡣ኱ኚ⯆࿡῝࠸ࠋRu(pd)ࡣ M(imp)ࡢᚋ࡟ᢸᣢࡋࡓࡓࡵ㸪ࢥ࢔㸦M(imp)㸧̾ࢩ࢙ࣝ
㸦Ru(pd)㸧ᵓ㐀ࡢᚤ⢏Ꮚࡀᢸᣢࡉࢀ࡚࠸ࡿࡇ࡜ࡀ᥎

ࡉࢀࡓࡀ㸪TEM ほᐹࡢ⤖ᯝ࠿ࡽ

Ru(pd)-M(imp)࡛ࡣࢥ࢔̾ࢩ࢙ࣝᵓ㐀ࢆ᭷ࡋ࡚࠸࡞࠸ࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗࡓ㸦Fig. 1㸧ࠋ 㐣Ώ྾཰ศග࡟ࡼࡾග⏕ᡂࡋࡓṇᏍࡢῶ⾶ࢆㄪ࡭ࡓ࡜ࡇࢁ㸪Ru(pd)ࡢࡳࢆᢸᣢࡋࡓሙ
ྜ࡛ࡣຓゐ፹ᮍᢸᣢ࡟ẚ࡭࡚ṇᏍࡢṧᏑ㔞ࡣࢃࡎ࠿࡟ቑຍࡋࡓ⛬ᗘ࡛࠶ࡗࡓࡀ㸪Ru(imp)࠾ࡼࡧ Ru(pd)-Ru(imp)ࢆᢸᣢࡋࡓሙྜ࡟ࡣṇᏍࡢṧᏑ㔞ࡣ㢧ⴭ࡟ቑຍࡋࡓ㸦Fig.
2㸧ࠋṇᏍࡢṧᏑ㔞ࡀቑຍࡋࡓࡢࡣ㸪SrTiO 3 :Rh ࠿ࡽᢸᣢࡋࡓᚤ⢏Ꮚ࡟ගບ㉳㟁Ꮚࡀຠ⋡Ⰻࡃ⛣ືࡋࡓࡇ࡜࡛෌⤖ྜࡀᢚไࡉࢀࡓࡇ࡜ࢆ♧ࡋ࡚࠸ࡿࠋ௨ୖࡢ⤖ᯝ࠿ࡽ㸪Ru(pd)ࡣࣉࣟࢺࣥࡢ㑏ඖ཯ᛂ࡟ᑐࡋ࡚㧗࠸άᛶࢆ᭷
ࡋ࡚࠸ࡿࡶࡢࡢ㸪SrTiO 3 :Rh ࠿ࡽࡢ㟁Ꮚᘬࡁᢤࡁ⬟ࡀࡑࢀ࡯࡝㧗ࡃ࡞࠸ࠋ୍᪉㸪Ru(imp)࡞࡝
M(imp)ࡣࣉࣟࢺࣥࡢ㑏ඖ཯ᛂ࡟ᑐࡍࡿάᛶࡣ
㧗ࡃ࡞࠸ࡶࡢࡢ SrTiO 3 :Rh ࠿ࡽࡢ㟁Ꮚࡢᘬࡁᢤࡁ ⬟ࡀ 㧗࠸ ࠋ Ru(pd)-M(imp) ࢆ ඹᢸ ᣢࡍࡿ ࡜M(imp)ࡀຠ⋡Ⰻࡃ SrTiO 3 :Rh ࠿ࡽ㟁Ꮚࢆᘬࡁᢤࡁ㸪Ru(pd)࡬ࡢ㟁Ꮚ⛣ືࢆಁ㐍ࡉࢀࡿࡇ࡜࡛
SrTiO 3 :Rh ࡟ࡼࡿỈ⣲⏕ᡂάᛶࡀಁ㐍ࡉࢀࡓ≀࡜᥎

Fig. 2 Decay of photogenerated holes.

ࡉࢀࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ H. P. Duong, M. Kobayashi, H. Kumagai, A. Iwase, A. Kudo, M. Kakihana, H. Kato,
Improvement of activities of Z-scheme systems composed of SrTiO 3 :Rh and BiVO 4 bydeposition of two kinds of cocatalyst on SrTiO 3 :Rh, ➨ 124 ᅇゐ፹ウㄽ఍㸪㛗ᓮ኱Ꮫ㸪2019ᖺ 9 ᭶ 18 ᪥㹼20 ᪥.
࣭ H. P. Duong, T. Mashiyama, M. Kobayashi, A. Iwase, A. Kudo, M. Kakihana, H. Kato,
Improvement of Activity of Rh-doped SrTiO 3 Photocatalyst Aiming at Enhancement of
Efficiency of Z-scheme Water Splitting, International Conference on Materials and Systems
for Sustainability 2019 (ICMaSS2019), ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥.

126

ู⣬ᵝᘧ㸰㸫㸰ᾮ┦ࢆ⏝࠸ࡓ㓟ࣇࢵ໬≀ࡢྜᡂ࡜ࡑࡢᶵ⬟
6\QWKHVLVRIR[\IOXRULGHVLQOLTXLGSKDVHDQGWKHLUIXQFWLRQVᮅ಴⿱௓࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ຓᩍ
Ẃ⃎࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵ
ᑠᯘு࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ 㓟ࣇࢵ໬≀ࡣࠊ༢⣧࡞㓟໬≀࡜ࡣ␗࡞ࡿࣘࢽ࣮ࢡ࡞≉ᛶࢆ᭷ࡋ࡚࠾ࡾࠊ㏆ᖺ⺯ගయẕ⤖ᬗࡸ㟁ụ⏝ά≀㉁࡞࡝࡜ࡋ࡚ᮇᚅࡉࢀࡿᮦᩱ࡛࠶ࡿࠋᚑ᮶ࠊ㓟ࣇࢵ໬≀ࡣ㧗࡛ࡢᅛ┦ྜᡂࡸỈ⇕ྜᡂἲ࡛ᚓࡽࢀ࡚ࡁࡓࠋᅛ┦཯ᛂ࡟ࡼࡿྜᡂ࡛ࡣ┿✵ᑒ⟶ฎ⌮ࡀᚲせ࡛࠶ࡿ࡜ࡇ࡜ࡸࠊỈ⇕ྜᡂἲ࡛ࡣ༴㝤࡞ࣇࢵ㓟Ꮡᅾୗ཯ᛂࡉࡏ࡞ࡃ࡚࡞ࡽ࡞࠸࡞࡝ࠊྜᡂἲ
ࡀ↹㞧࡛࠶ࡗࡓࠋࡇࡢࡼ࠺࡞↹㞧࡞ྜᡂࡣᛂ⏝ྍ⬟ᛶࢆపୗࡉࡏࡿࡶࡢ࡛࠶ࡾࠊ௒ᚋᮦ
ᩱ࡜ࡋ࡚ࡼࡾ᥈⣴ࡍࡿࡓࡵ࡟ࡣᏳ඲࠿ࡘ⡆౽࡟ྜᡂࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ
◊✲࡛ࡣࠊỈ࡛ࡣ࡞ࡃ᭷ᶵ⁐፹ࢆ཯ᛂሙ࡜ࡋࡓࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ࡟╔┠ࡋࠊࣇࢵ㓟ࢆ⏝࠸ࡎ㓟ࣇࢵ໬≀ࢆྜᡂࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ≉࡟ࠊ࢔ࣝ࢝ࣜ㔠ᒓ࡜ 0R ࠶ࡿ࠸ࡣ :ࡀྵࡲࢀࡿ㓟ࣇࢵ໬≀࡟╔┠ࡋࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ࡛ࡢྜᡂࢆヨࡳࡓࠋࡲࡓࠊࢯࣝ࣎ࢧ
࣮࣐ࣝ཯ᛂ࡛ࡣ㓟ࣇࢵ໬≀ࡢᙧែࢆไᚚ࡛ࡁࡿྍ⬟ᛶࡶ࠶ࡿࡓࡵࠊ⁐፹ࢆኚ࠼ࡿࡇ࡜࡟
ࡼࡿ㓟ࣇࢵ໬≀ࡢᙧែไᚚࡶヨࡳࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ  0R2 ࡜ 1D) ࡢࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ
Ỉ⇕ྜᡂἲ࡟ࡼࡾᚓࡽࢀࡓ 0R2 ࢆฟⓎ≀㉁࡜ࡋ࡚ࠊ࢔ࢭࢺࢽࢺࣜࣝ୰࠶ࡿ࠸ࡣ࢚
ࢱࣀ࣮ࣝ୰࡛  ᫬㛫ࢯࣝ࣎ࢧ࣮࣐ࣝฎ⌮࡟ࡼࡾࠊ1D) ࡜཯ᛂࡉࡏࡓࠋ཯ᛂ

ᗘࡣࠊ

& ࢆ㑅ᢥࡋࠊ ᗘ࡟ࡼࡿᙳ㡪ࢆㄪᰝࡋࡓࠋ཯ᛂᚋࠊ
Ỉ࠾ࡼࡧ࢚ࢱࣀ࣮࡛ࣝὙίࠊ
ࢁ㐣ࠊ஝⇱ࡍࡿࡇ࡜࡛ヨᩱࢆᚓࡓࠋ & ࡛ࢯࣝ࣎ࢧ࣮࣐ࣝ
ฎ⌮ࡋ࡚ᚓࡽࢀࡓヨᩱࡢ;5'ᐃ࡛ࡣࠊฟⓎ≀㉁࡛

࠶ࡿ 0R2 ࡜ྠᵝࡢࣃࢱ࣮ࣥ
ࢆ♧ࡋ࡚࠾ࡾࠊ཯ᛂࡀ㉳ࡁ࡚࠸࡞࠸ࡇ࡜ࡀ♧ࡉࢀࡓࠋ୍᪉
࡛ࠊ & ࠶ࡿ࠸ࡣ  &࡛཯ᛂࡉࡏࡓヨᩱ࡛ࡣࠊᅗ  ࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ࡟ࡼࡾᚓࡽࢀࡓヨᩱࡢ 6(0 ീ ཯ᛂ᮲௳ D  ࢔ࢭࢺࢽࢺࣜࣝ୰  & E  ࢔ࢭࢺࢽࢺࣜࣝ୰ & F  ࢚ࢱࣀ࣮ࣝ୰ & G  ࢚ࢱࣀ࣮ࣝ୰ &127

1D0R2) ࡀ༢┦࡛࡛ࡁ࡚࠸ࡿࡇ࡜ࡀ♧ࡉࢀࠊᗘࡀ㧗࡜࡞ࡿࡇ࡜࡛ 0R2 ࡜ 1D)ࡀ཯ᛂࡍࡿࡇ࡜ࡀศ࠿ࡗࡓࠋ1D) ࢆᑟධࡏࡎࠊ0R2 ࢆࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂࡋࡓ㝿࡟ࡣࠊ཯ᛂᚋࡢヨᩱࡀ 0R2 ࡢࡲࡲ࡛࠶ࡿࡇ࡜ࢆ⪃࠼ࡿ࡜ࠊ㧗ୗ࡛ 1D) ࡀ᭷ᶵ⁐፹࡟⁐ゎࡋࠊࡑࡢ 1D) ࡀ 0R2 ࡜཯ᛂࡍࡿ࡜⪃࠼ࡽࡿࠋ;5' ࡢࣆ࣮ࢡᙉᗘẚࡣࠊ⁐፹࡟ࡼࡗ࡚␗࡞ࡗ࡚࠾ࡾࠊ⢏Ꮚࡢᙧែࡀ␗࡞ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋᐇ㝿࡟ࠊ6(0 ീ࡛☜ㄆࡍࡿ࡜ࠊ⏝࠸ࡿ⁐፹࡟ࡼࡗ࡚ᚓࡽࢀࡿヨᩱࡢᙧែࡣ኱ࡁࡃ␗࡞ࡗ࡚࠸ࡓ ᅗ  ࠋ࢔ࢭࢺࢽࢺࣜࣝ୰࡛ྜᡂࡋࡓ 1D0R2) ࡛ࡣࠊ࣐࢖ࢡࣟࢫࢣ࣮ࣝࡢࣟࢵࢻ≧ࡢᙧែࢆ᭷ࡋ࡚
࠸ࡓࠋ୍᪉࡛ࠊ࢚ࢱࣀ࣮ࣝ୰࡛ྜᡂࡉࢀࡓ 1D0R2) ࡣᩘⓒ࣓࣮ࢺࣝࡢከ㠃య≧⢏Ꮚࡀ㐃⤖ࡋࡓࡼ࠺࡞ᙧែ࡛࠶ࡗࡓࠋ1D) ࡢ⁐ゎᗘࡣࠊ࢔ࢭࢺࢽࢺࣜࣝ୰ࡼࡾࡶ࢚ࢱࣀ࣮
ࣝ୰ࡢ᪉ࡀ㧗࠸ࡇ࡜ࡀ▱ࡽࢀ࡚࠾ࡾࠊࡼࡾከࡃ⁐ࡅࡓ 1D) ࡀࡼࡾ 0R2 ࢆ⁐ゎࡉࡏࠊ୍ḟ⢏Ꮚࡀᑠࡉ࡞≧ែ࡛ᚓࡽࢀࡓ࡜⪃࠼ࡽࢀࡿࠋ
 :2 ࡜ 1D) ࡢࢯࣝ࣎ࢧ࣮࣐ࣝ཯ᛂ
0R2 ࡜ 1D) ࡢ཯ᛂ࡜ྠᵝ࡟ࠊỈ⇕ྜᡂ࡟ࡼࡾᚓࡽࢀࡓ :2 ࡜ 1D) ࢆᵝࠎ࡞⁐፹୰& ࡛཯ᛂࡉࡏࡓࠋ0R2 ࢆฟⓎ≀㉁࡜ࡋࡓሙྜࠊ⁐፹࡟ࡼࡗ࡚ࡣ 0R ࡀ㑏ඖࡉࢀ࡚ࡋࡲ࠸ࠊ㓟ࣇࢵ໬≀ࡀ⏕ᡂࡋ࡞࠸ࢣ࣮ࢫࡀ࠶ࡾࠊ࢔ࢭࢺࢽࢺࣜࣝ࠾ࡼࡧ࢚ࢱࣀ࣮ࣝ୰
࡛ࡢࡳ㓟ࣇࢵ໬≀ࡀᚓࡽࢀࡓࠋ୍᪉࡛ࠊ:2 ࢆฟⓎ≀㉁࡜ࡋࡓሙྜࠊ;5'ᐃࡢ⤖ᯝ࠿ࡽࠊᵝࠎ࡞⁐፹୰࡛ᚓࡽࢀࡓヨᩱ࡟࠾࠸࡚ࠊ1D ࡜ : ࢆ᭷ࡍࡿ㓟ࣇࢵ໬≀ 1D:2)
ࡀ⏕ᡂࡋࡓࡇ࡜ࡀ♧ࡉࢀࡓࠋ≉࡟ࠊ࣓ࢱࣀ࣮࣭࢚ࣝࢱࣀ࣮࣭ࣝࣉࣟࣃࣀ࣮ࣝ୰࡛ࡣ
༢┦࡛㓟ࣇࢵ໬≀ࡀᚓࡽࢀࡓࠋ0R2 ࡜ࡢ㐪࠸ࡣࠊ: ࡜ 0R ࡢ᭷ᶵ⁐፹࡟ࡼࡿ㑏ඖࡢࡉࢀࡸࡍࡉ࡟ࡼࡿ㐪࠸࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋᚓࡽࢀࡓヨᩱࡢᙧែࢆ 6(0ᐃ࡟ࡼࡾ☜ㄆࡍࡿ࡜ࠊPP ⛬ᗘࡢ ࣉࣟࣃࣀ࣮ࣝ୰࡛ྜᡂࡋࡓሙྜ࡟ከ㠃య≧ࡢᙧែࡢ⢏Ꮚࡀᚓࡽࢀࠊ࣓ࢱࣀ࣮ࣝ୰࡛ࡣᩘⓒ QP ࡢ୙ᐃᙧ⢏Ꮚࠊ࢚ࢱࣀ࣮ࣝ୰࡛ࡣᩘⓒ QP ࡢከ㠃య≧࡜୙ᐃᙧ⢏Ꮚࡢΰྜ≀࡜ࡋ࡚ᚓࡽࢀࡓࠋ
௨ୖࡢ⤖ᯝࡼࡾࠊ0R2 ࠶ࡿ࠸ࡣ :2 ࡜ 1D) ࢆ᭷ᶵ⁐፹୰࡛཯ᛂࡍࡿࡇ࡜࡟ࡼࡾࠊ
㓟ࣇࢵ໬≀ࢆྜᡂ࡛ࡁࡿࡇ࡜ࢆぢฟࡋࡓࠋᮏྜᡂἲ࡛ࡣࠊ᭷ᶵ⁐፹ࡢ✀㢮࡟ࡼࡗ࡚㓟ࣇࢵ໬≀⢏Ꮚࡢᙧែࢆไᚚࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊ㓟ࣇࢵ໬≀ࡢᙧែไᚚᡭἲࢆᥦ᱌࡛ࡁ
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Rh-doped titanate nanosheet by ESR at extremely low temperature during photo-inducedhydrogen evolution reaction, ICMaSS2019ōNagoyaōNov.1Ŗ3, 2019.

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࢚ࢿࣝࢠ࣮ᾘ㈝ࡢ኱ᖜ࡞๐ῶࢆࡶࡓࡽࡍࠋ୍⯡࡟ᮦᩱ࡬ࡢᢠ⳦ᛶ௜୚ࡣᮦᩱ⾲㠃࡟ᢠ⳦≀㉁ࢆᚎᨺ࡛ࡁࡿ⿕⭷ࢆᙧᡂࡍࡿࡇ࡜࡛ᐇ⌧࡛ࡁࡿࡀࠊࢫࣃࢵࢱἲࡸ⵨╔ἲ࡞࡝ࡢ኱ࡁ
࡞࢚ࢿࣝࢠ࣮ᾘ㈝ࢆక࠺ᡭἲ࡛ᙧᡂࡋ࡚ࡋࡲ࠺࡜ࠊ⤖ᒁࡣ࢚ࢿࣝࢠ࣮ᾘ㈝㔞ࡢ๐ῶ࡟ࡣ
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ࡿ⓶⭷◚ቯࢆほᐹࡍࡿࡇ࡜࡟ࡼࡾ⓶⭷ࡢ⪏ஂᛶࢆㄪ࡭ࡓࠋࡲࡓࠊ࣓ࢳࣞࣥࣈ࣮ࣝ㸦MB㸧ศゎヨ㦂࡛ගゐ፹ᛶ⬟ࢆ ᐃࡋࡓࠋ ᅗ㸯ࡣࠊ◪㓟ሷ/ Gly 㟁ゎᾮ࠾ࡼࡧ◪㓟ሷ/ EG 㟁ゎᾮ࡛㝧ᴟ㓟໬ฎ⌮ࡋࡓ Ti ᮦᩱࡢ⾲
㠃 SEM ീ࡛࠶ࡿࠋ0.1 M ◪㓟ሷ/ Gly ࠾ࡼࡧ 0.1 M ◪㓟ሷ/ EG ࡢሙྜࡣẚ㍑ⓗᖹᆠ࡞⾲㠃࡛࠶ࡗࡓࡀࠊEG ⾲㠃ࡢࡳ࡛ࢧࣈ࣑ࢡ࣭ࣟࣥࢧ࢖ࢬࡢὸ࠸ᓥࡢࡼ࠺࡞ᙧែࢆ♧ࡋࡓࠋ
1.0 M ◪㓟ሷ/ Gly ⾲㠃ࡶᖹᆠ࡞⾲㠃ࢆ♧ࡋࡓࡀࠊ⾲㠃ࡢ୍㒊࡟ࡣࠊ0.1 M 㟁ゎᾮ࡛ㄪ〇ࡋࡓࢧࣥࣉࣝ࡜ࡣ␗࡞ࡾࠊ⭾₶ࡋࡓࡼ࠺࡞ᵓ㐀ࡀྵࡲࢀ࡚࠸ࡓࠋ

133㉸㡢ἼὙίฎ⌮ࡍࡿ࡜ࠊ◪㓟ሷ/ EG 㟁ゎᾮ࡛ᙧᡂࡋࡓ⓶⭷ࡣࠊࡑࡢ୍㒊ࡣᔂቯࡋࡓࡼ࠺
࡞ᙧែ࡟ኚ໬ࡋࡓࠋࡇࡢኚ໬ࡣࠊ㉸㡢Ἴ᣺ື࡟ࡼࡿ⓶⭷ෆ㒊ࡢ◚ቯࡀཎᅉ࡜⪃࠼ࡽࢀࡿࠋ
ᑐ↷ⓗ࡟ࠊࡇࡢࡼ࠺࡞◚ቯࡣ Gly ⁐፹ࢆ౑⏝ࡋࡓ㝧ᴟ㓟໬⾲㠃࡛ࡣ࡯࡜ࢇ࡝ほᐹࡉࢀࡎࠊ
≉࡟ 0.1 M ◪㓟ሷ/ Gly 㟁ゎᾮ࡛ㄪ〇ࡋࡓࢧࣥࣉࣝ⾲㠃ࡢ⏬ീࡣࠊฎ⌮๓࡜࡯࡜ࢇ࡝ኚࢃࡽ
࡞࠿ࡗࡓࠋࡇࢀࡣࠊ◪㓟ሷ㟁ゎᾮࡢ⁐፹࡜ࡋ࡚ࡢ Gly ࢆ౑⏝ࡍࡿࡇ࡜࡛ࠊᙧᡂ⓶⭷ࡢᙉᗘࡀྥୖࡍࡿࡇ࡜ࢆ♧၀ࡍࡿࠋࡉࡽ࡟ 1.0 M ◪㓟ሷ/ Gly 㟁ゎ㉁࡛ㄪ〇ࡋࡓヨᩱ࡛ࡣࠊ┤ᚄࡀᩘ࣐࢖ࢡ࣓࣮ࣟࢺࣝ⛬ᗘࡢ❑ࡳࡀከᩘほᐹࡉࢀࡓࠋࡇࡢ❑ࡳࡢࢧ࢖ࢬ࡜ᙧ≧ࡣࠊ㉸㡢ἼὙί๓࡟ぢࡽࢀࡓ⭾ᙇ㒊ศࡢࢧ࢖ࢬ࠾ࡼࡧᙧ≧࡟㢮ఝࡋ࡚࠾ࡾࠊ✵Ὕ㒊ศࡣ⭾ᙇ㒊ศࡢ◚⿣࡟ࡼࡗ࡚⏕ᡂࡉࢀࡓࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

ᅗ㸯✀ࠎ㟁ゎᾮ࡛㝧ᴟ㓟໬ฎ⌮ࡋࡓ⾲㠃
SEM ീ㸸(a)ฎ⌮┤ᚋཬࡧ(b)㉸㡢ἼὙίᚋࡢ
0.1M ◪㓟ሷ/EG 㟁ゎᾮࠊ(c)ฎ⌮┤ᚋཬࡧ(d)㉸㡢ἼὙίᚋࡢ 0.1M ◪㓟ሷ/Gly 㟁ゎᾮࠊ(e)ฎ⌮┤ᚋཬࡧ(f)㉸㡢ἼὙίᚋࡢ 1.0M ◪㓟ሷ/Gly 㟁ゎᾮࠊ㝧ᴟ㓟໬ TiO 2 ᒙࡢ MB ศゎࡢ཯ᛂ㏿ᗘࡣࠊ⣸እග࠾ࡼࡧྍどග↷ᑕୗࡢ୧᪉࡛ࠊ◪㓟ሷ⃰ᗘ࡜⁐፹ࢱ࢖ࣉ࡟㛵ಀ࡞ࡃṇࡢ್ࢆ♧ࡋࡓ㸦ᅗ㸰㸧ࠋ⣸እග↷ᑕୗ࡛ࡣࠊ◪㓟ሷ⃰ᗘࡀቑຍࡍࡿ࡜཯ᛂ㏿ᗘࡣ༢ㄪ࡟ቑຍࡋࡓࠋྍどග↷ᑕୗ࡛ࡢ MB ศゎࡢ㏿ᗘࡶࠊ◪㓟ሷ⃰ᗘࡢቑຍ࡜࡜ࡶ࡟༢ㄪ࡟ቑຍࡋࡲࡋࡓࡀࠊࡑࡢቑ
ຍ㔞ࡣ 0.1 M ௨ୖ࡛ࣉࣛࢺ࣮࡟࡞ࡗࡓࠋࡉࡽ
࡟ࠊGly ࠾ࡼࡧ EG ⁐፹ࢆ౑⏝ࡋࡓ➼౯◪㓟ሷ⃰ᗘ㸦0.1 M㸧㟁ゎᾮ㛫ࡢ཯ᛂ㏿ᗘࢆẚ㍑ࡍ
ࡿ࡜ࠊGly 㟁ゎᾮ࡛ᙧᡂࡋࡓᒙࡢ㏿ᗘࡣࠊEGᅗ㸰 ✀ࠎ⃰ᗘࡢ◪㓟ሷ/Gly ࠾ࡼࡧ◪㓟 EG㟁ゎᾮ࡛㝧ᴟ㓟໬ฎ⌮ࡋࡓࢳࢱࣥ⾲㠃ࡢ MBศゎ㏿ᗘࠋẚ㍑ࡢࡓࡵᕷ㈍ TiO2 ᒙࡢ㏿ᗘࡶ♧ࡍࠋ㟁ゎᾮ࡟ᑐࡋ࡚ࠊ⣸እග࡛ 1.4 ಸࠊྍどග࡛ 3.0 ಸ࡛࠶ࡗࡓࠋ≉࡟ࠊ⣸እග↷ᑕୗ࡛ࡢ㝧ᴟ㓟໬ᒙࡢ཯ᛂ㏿ᗘࡣࠊ0.01 M ◪㓟ሷ/ Gly ࡢሙྜࢆ㝖ࡁࠊᕷ㈍ TiO 2 ᒙ⓶⭷ࡢ཯ᛂ㏿ᗘࡼࡾࡶඃࢀ࡚࠸ࡓࠋࡋࡓࡀࡗ࡚ࠊ㠀Ỉᛶ◪㓟ሷ㟁ゎ㉁ࡢ⁐፹࡜ࡋ࡚ Gly ࢆ౑⏝ࡍࡿ࡜ࠊ⓶⭷ࡢ◳ᗘ࡜ගゐ፹ᛶ⬟ࡢ୧᪉ࡀྥୖࡍࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
11. R. Kuroda, K. Kuroda, M. Okido, K. Yamaguchi, N. Ohtsu, Antibacterial Properties of Ti
Surface Using Metallic Ions Adsorption, ICMaSS 2019 (11/1㹼3, Nagoya, Japan)
2. N. Ohtsu, T. Kawakami, Y. Konaka, K. Kuroda, Fractional analytical procedure for adsorbed
proteins onto a material surface, ICMaSS 2019 (11/1㹼3, Nagoya, Japan)134ู⣬ᵝᘧ㸰㸫㸰ᾏὒ⏕≀௜╔㝖ཤࡢ┬࢚ࢿࣝࢠ࣮໬ࢆᚿྥࡋࡓ࣏࢚ࣜࢳࣞࣥࡢ⾲㠃
ᨵ㉁࡟㛵ࡍࡿ◊✲Investigations on the surface modification of polyethylene directed to the energy-saving
removal of sessile organismsᑎ㛛ಟ࣭ภ㤋ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ࣭≀㉁⎔ቃᕤᏛ⛉࣭෸ᩍᤵỈ㔝❶ᩄ㸪ภ㤋ᕤᴗ㧗➼ᑓ㛛Ꮫᰯ㸪୍⯡⣔㸪෸ᩍᤵ㯮⏣೺௓࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ᮏ◊✲࡛ࡣࠊỗ⏝ᛶ࣏࣐࣮ࣜࡢぶỈ໬࡟ࡼࡾࠊ⯪⯧ࡸࠊ⁺⥙ࠊᾋࡁ࡞࡝࡟኱㔞࡟௜╔ࡋࠊ࠿ࡘ㝖ཤࡢᴟࡵ࡚ᅔ㞴࡞㈅㢮ࡢ௜╔ᢚไࢆᛕ㢌࡟⨨࠸ࡓᇶ♏◊✲ࢆᐇ᪋ࡍࡿࠋ࡜ࡃ
࡟ᐃ⨨⥙࡞࡝ࡢᾋᏊ࡜ࡋ࡚ከ㔞࡟౑ࢃࢀ࡚࠸ࡿ࣏࢚ࣜࢳࣞࣥ㸦PE㸧࡟╔┠ࡋࠊࡑࡢぶỈ໬࡞ࡽࡧ࡟ᢠ⳦ฎ⌮࡟ࡼࡾࠊ࣒ࣛࢧ࢟࢖࢞࢖ࡸࣇࢪࢶ࣎࡞࡝ࡢ㈅㢮ࡢ௜╔ᢚไᅉᏊࢆ
᫂ࡽ࠿࡟ࡍࡿ࡜࡜ࡶ࡟ᐇᆅヨ㦂࡟ࡼࡿᐇドホ౯ࢆ┠ⓗ࡜ࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࢫࢱࣥࢲ࣮ࢻࢸࢫࢺࣆ࣮ࢫ♫ࡢ 30 mm  40 mm PE ᯈ㸦㧗ᐦᗘ࣏࢚ࣜࢳࣞࣥ HDPE㸧ࡢ⾲㠃ࢆ◊☻ᚋࠊ⵨␃Ỉ࡛ 5 ศ㛫㉸㡢ἼὙίࢆ᪋ࡋࡓࠋ
ྛ㠃࡟ 5 s ࡎࡘ⣸እ⥺㸦Ἴ㛗 172 nm㸧ࢆ࠶࡚⡆༢࡟Ὑίࡋࡓࠋࡇࢀࢆࠊ◊☻ࡲࡲ PE ࡜ࡋࠊUV ↷ᑕ࣭㓟ฎ⌮࡟ࡼࡿぶỈ໬ฎ⌮࡞ࡽࡧ࡟ AgNO3 Ỉ⁐ᾮ࡟ᾐₕࡉࡏࡿࡇ࡜࡛ Ag+࢖࢜ࣥ྾╔ฎ⌮ࢆ⾜ࡗࡓࢧࣥࣉࣝࢆᾏὒᾐₕヨ㦂࡟౪ࡋࡓࠋ࡞࠾ࠊฎ⌮ᚋࡢࢧࣥࣉࣝࡢಖᏑ᮲௳ࡢᙳ㡪࡟ࡘ࠸࡚ࡶㄪᰝࡋࡓࠋ⾲㠃ฎ⌮ᚋࡢࢧࣥࣉࣝࡣ XPS, FT-IR㸪Ỉ⁲᥋ゐゅ㸦WCA㸧 ᐃ࡞࡝࡛࢟ࣕࣛࢡࢱࣜࢮ࣮ࢩࣙࣥࢆ⾜ࡗࡓࠋFig. 1 ࡟⾲㠃ฎ⌮࡟క࠺ WCA ࡢ⤒᫬ኚ໬ࢆ♧ࡍࠋ⾲㠃ฎ⌮๓ࡢ◊☻ࡲࡲ PE ࡢ WCA ࡀ
90-100 deg.࡛࠶ࡗࡓࡢ࡟ᑐࡋࠊ◲㓟୰࡬ࡢᾐₕ࡜ UV ↷ᑕ࡟ࡼࡾࠊ35 deg.ࡲ࡛ῶᑡࡋࡓࠋ
௨ୖࡼࡾࠊࡇࢀࡽࡢฎ⌮࡟ࡼࡗ࡚ PE ࡢぶỈ໬ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓࠊᾐ ₕ ฎ⌮ ࡢ๓࡟ࡇ ࡜ ࡀຠ ᯝⓗ࡛࠶ ࡿ ࡇ࡜ ࢆࡶࢃ࠿ࡗࡓࠋࡑࡢ௚࡟⾲㠃
ᐁ⬟ᇶࡢㄪᰝࡸࠊ
Ag+࢖࢜ࣥ྾⬺╔࡟ ࡘ ࠸࡚ ࡢ▱ぢࢆᚓࡓࠋ୍౛࡜ࡋ

Water contact angle, WCA (deg.)

UV ๓↷ᑕࢆ⾜࠺৐૪৶UV‫ق‬172V‫ق‬172 nm‫ك‬࿠კ૪৶18 M H2SO489
9૪৶
UV‫ق‬172V‫ق‬1
172 nm‫ك‬‫ك‬

1
2
Irradiation time ‫؜‬t / h

1 0
3 0
Immersing time ‫؜‬t / h

1
2
Irradiation time ‫؜‬t / h

100

50

0

0

Fig. 1 Change in water contact angle during surface treatment.

135

3࡚ࠊXPS ࠾ࡼࡧ FT-IR ࡢ㼁㼚㼠㼞㼑㼍㼠㼑㼐㻌㻼㻱ᐃࡼࡾࠊ࢝ࣝ࣎࢟ࢩࣝᇶ

㻹㼛㼐㼕㼒㼕㼑㼐㻌㻼㻱

WCA : 98 deg.

㻴㼥㼐㼞㼛㼜㼔㼕㼘㼕㼦㼑㼐

WCA : 38 deg. (Stored in NaCl aq)

WCA : 50 deg.

ࡀ PE ⾲㠃࡟ࡼࡾᑟධࡉ
ࢀࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓࠊ
Ag+ ࢖࢜ࣥࡢ྾╔࡟ࡘ࠸࡚ࠊ⁐ᾮࡢ pH ౫Ꮡᛶࡢㄪ

1 cm

㻴㼥㼐㼞㼛㼜㼔㼕㼘㼕㼦㼑㼐 㻗㻌㻭㼓㻗
WCA : 50 deg. (Stored in AgNO3 aq)

WCA : 65 deg.

ᰝࢆࡋࡓ࡜ࡇࢁࠊ࢔ࣝ࢝ࣜ
ᛶ⁐ᾮ࡛ࡢฎ⌮ࡀ᭷ຠ࡛࠶ࡿࡇ࡜࡞࡝ࡶぢฟࡋࡓࠋᾏὒᾐₕヨ㦂ࡣ໭ᾏ㐨ภ㤋ᕷࡢᏳᾆ⁺࡛⾜ࡗࡓࠋ2018 ᖺ 5 ᭶ 12 ᪥࠿

Fig. 2 Photos of PE samples after the immersion in thesea for 404 days.

ࡽ 2019 ᖺ 6 ᭶ 20 ᪥ࡲ࡛
404 ᪥㛫ࠊస〇ࡋࡓ 5 ✀ࡢ PE ᯈヨᩱࢆ໭ᾏ㐨ภ㤋ᕷ࣭Ᏻᾆ⁺ ࡢᾏ୰࡟ᾐₕࡋࡓࠋࡇࢀࡽ
ࢆᐃᮇⓗ࡟ᘬࡁୖࡆࠊほᐹࡍࡿࡇ࡜࡛㜵ởᛶࡢㄪᰝࢆ⾜ࡗࡓࠋほᐹࡢᑐ㇟ࡣ࢖࢞࢖ࠊࣇࢪ
ࢶ࣎ࠊ⸴ࡢ௜╔ࡢ᭷↓࡜ࡋࡓࠋFig. 2 ࡟ 404 ᪥㛫ᾐₕࡋࡓᚋࡢ PE ᯈࡢእほࢆ♧ࡍࠋぶỈ໬ฎ⌮ࡋࡓሙྜࠊ࢖࢞࢖ࡸࣂ࢖࢜ࣇ࢕࣒ࣝࡢᙧᡂࡀ㢧ⴭ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡲࡓࠊAg+࢖࢜ࣥࢆ⾲㠃࡟ᑟධࡋࡓሙྜࠊẚ㍑ⓗࡁࢀ࠸࡞ࡲࡲ࡛࠶ࡾࠊᢠ⳦ᛶࡀ௜୚ࡉࢀࡿࡇ࡜࡟ࡼࡗ࡚ 1ᖺ௨ୖࡢ㛗ᮇ࡟Ώࡿᮇ㛫࡟࠾࠸࡚௜╔ࡀᢚไ࡛ࡁࡓࠋภ㤋ᆅ༊࡟࠾ࡅࡿ⁺ᴗ⪅࡟ࡼࡿ࡜ࠊ
ᾋᏊ࡬ࡢ⏕≀௜╔ࡢࡓࡵ࡟ࠊ༙ᖺࡈ࡜࡟ᡭసᴗ࡟ࡼࡿ௜╔≀ࢆ㝖ཤࡀᚲせ࡛࠶ࡿࠋᮏᢏ⾡࡟ࡼࡗ࡚ࠊ1 ᖺ௨ୖࡢຠᯝࡀㄆࡵࡽࢀࡓࡇ࡜࠿ࡽࠊ㝖ཤ࡟క࠺⭾኱࡞࢚ࢿࣝࢠ࣮๐ῶ࡞ࡽࡧ
࡟పࢥࢫࢺ໬ࡀྍ⬟࡜࡞ࡗࡓࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
࣭C. Nakazono, K. Kuroda, M. Okido, F. Tanaka, O. Terakado, Protein and Ion Adsorptivity,
Control of Surface Modified Polymer Materials, The 4th International Symposium on
Creation of Life Innovation Materials for Interdisciplinary and International Research
Development (iLIM-4), ௝ྎ㸪2019 ᖺ 10 ᭶ 3 ᪥㹼4 ᪥
࣭F. Tanaka, O. Terakado, C. Nakazono, K. Kuroda, M. Okido, Surface Modification to
Polyethylene for the Antifouling Application in Seawater, International Conference on
Materials and Systems for Sustainability 2019, ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥㸬
࣭C. Nakazono, K. Kuroda, M. Okido, F. Tanaka, O. Terakado, Surface Modification of Polymer
Materials and Their Protein and Ion Adsorptivity, International Conference on Materials andSystems for Sustainability 2019, ྡྂᒇ኱Ꮫ㸪2019 ᖺ 11 ᭶ 1 ᪥㹼3 ᪥㸬࣭୰ᅬᬛᬕ㸪㯮⏣೺௓㸪⯆ᡞṇ⣧㸪⏣୰ኴ㸪ᑎ㛛ಟ㸪࣏࣐࣮ࣜࡢ⾲㠃ᨵ㉁࡜ࢱࣥࣃࢡ㉁࡞ࡽࡧ࡟࢖࢜ࣥ྾╔ᛶホ౯㸪➨ 2 ᅇ᪥ᮏ㔠ᒓᏛ఍➨ 7 ศ㔝ㅮ₇఍㸪⚄ᡞ㸪2019 ᖺ 12
᭶ 8 ᪥㸬

136ู⣬ᵝᘧ㸰㸫㸰㧗ຠ⋡⣽⬊ᇵ㣴ᢏ⾡ࡢ㛤Ⓨࢆ┠ᣦࡋࡓࢳࢱࣥྜ㔠ࡢ⤌⧊ไᚚ
High proliferation of cells on titanium alloys with controlled microstructureᒸ㔝⪽࣭ឡ፾኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭ຓᩍᑠᯘ ༓ᝅ࣭ឡ፾኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭ᩍᤵ῝⏣ ᇶྐ࣭ឡ፾኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭ಟኈ 1 ᖺᯇ⏣ ᓅ࣭ឡ፾኱Ꮫ࣭ᕤᏛ㒊࣭Ꮫ㒊 4 ᖺ
Andy Muhammad Anshar࣭ឡ፾኱Ꮫ኱Ꮫ㝔࣭⌮ᕤᏛ◊✲⛉࣭༤ኈᚋᮇ 3 ᖺ㯮⏣೺௓࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ㉸㧗㱋♫఍ࢆ㏄࠼ࡓᡃࡀᅜࡢ㧗㱋⪅ࡢ⑌⑓ᑐ⟇࡜ࡋ࡚㸪IPS ⣽⬊ࢆጞࡵ࡜ࡍࡿ෌⏕་⒪ࡢⓎᒎࡀồࡵࡽࢀ࡚࠸ࡿ㸬἞⒪࡟ᑐࡋ࡚ࡣ✀ࠎࡢ⣽⬊ࡢᇵ㣴ࡀ୙ྍḞ࡛࠶ࡾ㸪Ᏻ඲࡛పࢥࢫࢺ࡞⣽⬊ࡢ኱㔞⏕⏘᪉ἲࡢ☜❧ࡀᮃࡲࢀ࡚࠸ࡿ㸬 ࢳࢱࣥྜ㔠ࡣᶵᲔⓗ≉ᛶࡸ⪏㣗ᛶ㸪⏕య㐺ྜᛶ࡟ඃࢀ࡚࠾ࡾ㸪ࡑࡢྜ㔠ୖ࡛ࡢ⣽⬊ᇵ㣴ᣲື࡟ࡘ࠸࡚ࡣ⾲㠃≧ែ㸦⢒ࡉ㸪⃿ࢀᛶ㸧ࡀ኱ࡁࡃᙳ㡪ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࡇ࡜
࠿ࡽ㸪㓟ฎ⌮ࡸ⇕ฎ⌮➼࡛⾲㠃≧ែࢆไᚚࡍࡿ◊✲ࡀከࡃሗ࿌ࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ୍⯡࡟⣽⬊ᇵ㣴࡟ࡣ࣏࣐࣮ࣜᶞ⬡ᐜჾࡀዲࢇ࡛౑⏝ࡉࢀ㸪㔠ᒓࡸࢭ࣑ࣛࢵࢡࢫ〇ᐜჾࡣ౑⏝ࡉࢀ࡚࠸࡞࠸㸬⏦ㄳ⪅ࡣ᭱㏆㸪Ș㸩ș⤌⧊ࢆ᭷ࡍࡿ Ti-15Zr-4Nb-4Ta ྜ㔠࡛ࡣș┦ୖ࡟㦵ⱆ⣽⬊ࡣඃ఩࡟᥋╔ఙᒎࡍࡿࡇ࡜ࢆぢฟࡋ࡚࠸ࡿ㸬ࡇࡢ⤖ᯝࡣ㸪ྛ┦ࡢ⤌ᡂ࠶ࡿ࠸ࡣ
Șཬࡧș┦ࡢ࠸ࡎࢀ࠿ࡀ㦵ⱆ⣽⬊ࡢ᥋╔ఙᒎ࡟ᙳ㡪ࢆཬࡰࡋ࡚࠸ࡿࡇ࡜ࢆ♧၀ࡋ࡚࠸ࡿࡀ㸪ࡑࡢヲ⣽࡟ࡘ࠸࡚ࡣ᫂☜࡟࡞ࡗ࡚࠸࡞࠸㸬ᮏ◊✲࡛ࡣ㸪Ti-6Al-4V ELI ྜ㔠࡟㓟ฎ⌮ࢆ᪋ࡋ㸪ࡑࡢᮦᩱୖࡢ㦵ⱆ⣽⬊ᣲືࢆㄪᰝࡋ㸪ࢳࢱࣥྜ㔠ࡢ⤌⧊࡜㦵ⱆ⣽⬊ᣲືࡢ┦㛵ࢆゎ᫂ࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
Ti-6Al-4V ELI ྜ㔠ࢆ 10*10*3mm ࡟࢝ࢵࢺࡋ㸪㙾㠃◊☻ฎ⌮ࢆ᪋ࡋࡓࡶࡢࢆ౪ヨᮦ࡜ࡋࡓ㸬౪ヨᮦ࡟ᑐࡋ㸪XRD㸪SEM ほᐹ㸪EDS ࡟ࡼࡿ⤌ᡂศᯒࢆ⾜ࡗࡓ㸬ᚓࡽࢀࡓヨᩱ࡟ᑐࡋ࡚㸪Ὑί㸪⁛⳦ฎ⌮ࢆ⾜ࡗࡓᚋ㸪24well ࡢᗏ㠃࡟ヨᩱࢆタ⨨ࡋ㦵ⱆ⣽⬊ࢆ᧛✀ࡋࡓ㸬24h ᇵ㣴ᚋ㸪⣽⬊ࡢ᥋╔ᩬࢆࣅ࡛ࣥ࢟ࣗࣜࣥᰁⰍࡋ㸪⺯ග㢧ᚤ㙾ࢆ⏝࠸࡚᥋╔⟠ᡤࢆほᐹࡋࡓ㸬ࡑࡢᚋ㔠ᒓヨᩱࢆ࢚ࢵࢳࣥࢢࡋ࡚⤌⧊ࢆྍど໬ࡋ㸪ඛ࡯࡝ࡢ᥋╔⌜ࡢほᐹ⤖ᯝ࡜⏬ീࢆྜᡂࡍࡿࡇ࡜࡛࡝ࡕࡽࡢ⤌⧊࡟⣽⬊ࡀ᥋╔ࡋ࡚࠸ࡓ࠿ࢆほᐹࡋࡓ㸬ࡇࡢ⤖ᯝࢆࠕ஦๓⭉㣗࡞ࡋࠖ࡜࿧⛠ࡍࡿࡇ࡜࡜ࡍࡿ㸬ࡲࡓ㸪஦๓࡟ヨᩱࢆ࢚ࢵࢳࣥࢢࡋࡓࡶࡢ
࡟ᑐࡋ࡚ࡶྠᵝࡢᐇ㦂ࢆ⾜ࡗࡓ㸦ࠕ஦๓⭉㣗࠶ࡾࠖ࡜࿧⛠㸧㸬ᅗ㸯࡟㸪ᮏᐇ㦂࡛⏝࠸ࡓ⭉㣗๓ࡢ Ti-6Al-4V ྜ㔠ࡢ SEM ࡟ࡼࡿ཯ᑕ㟁Ꮚീࡢほᐹ⤖ᯝࢆ♧ࡍ㸬XRD ཬࡧ EDS ࡢ⤖ᯝ࠿ࡽ㸪㯮ࡃぢ࠼ࡿ㒊ศࡀȘ┦㸪ⓑࡃぢ࠼ࡿ㒊ศࡀȘ㸩ș┦࡛࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬ࡇࡢ SEM ീ࠿ࡽȘ┦࡜ș┦ࡢ㠃✚ศ⋡ࢆồࡵࡓ⤖ᯝ㸪Ș137

┦ࡣ 67%㸪ș┦ࡣ 33%࡛࠶ࡗࡓ㸬ࡲࡓ AFM ࡢ⤖ᯝࡼࡾ㸪⭉㣗๓ࡢᖹᆒ⾲㠃⢒ࡉ Ra ࡣ
2nm㸪⭉㣗ᚋࡢ Ra ࡣ 17nm ࡛࠶ࡗࡓ㸬⣽⬊ࡣᩘ 100nm ௨ୖࡢẁᕪࢆㄆ㆑ࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࡇ࡜࠿ࡽ㸪ࡇࡢ AFM ࡢ⤖ᯝࡣ⭉㣗ฎ⌮࡟ࡼࡿ⾲㠃⢒ࡉࡢኚ໬ࡣ⣽⬊ࡢᣲື࡟ࡣᙳ㡪ࡋ࡞࠸ࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ᅗ㸰࡟㸪ࠕ஦๓⭉㣗࠶ࡾࠖཬࡧࠕ஦๓⭉㣗↓ࡋࠖࡢȘ┦࡜ș┦ࡢ㠃✚ศ⋡㸪ཬࡧྛ⤌⧊࡟࠾ࡅࡿ㦵ⱆ⣽⬊ࡢ᥋╔⋡ࢆ♧ࡍ㸬ᅗ୰ࡢἼ⥺ࡣȘ┦࡜ș┦ࡢ㠃✚ศ⋡࡛࠶ࡿ 67%࡜ 33%ࢆ♧ࡋ࡚࠸ࡿ㸬⭉㣗࡞ࡋࡢሙྜ㸪㦵ⱆ⣽⬊ࡢ᥋╔⋡ࡣ㸪Ș┦࣭ș┦ࡢ㠃✚⋡࡜࡯ࡰ➼ࡋࡃ࡞ࡗࡓ୍᪉㸪஦๓࡟⭉㣗ฎ⌮ࢆ᪋ࡋࡓࠕ⭉㣗࠶ࡾࠖࡢሙྜ㸪⣽⬊ࡣȘ┦࡟ඃඛⓗ࡟᥋╔ࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬⤌ᡂศᯒࡢ⤖ᯝ㸪⭉㣗ᚋࡢș┦࠿ࡽ V ࡀඃඛⓗ࡟⁐ฟࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿࡇ࡜࠿
ࡽ㸪⭉㣗ฎ⌮࡟ࡼࡗ࡚ș┦ୖ࡟ᙧᡂࡉࢀࡓ⓶⭷ࡣ୙Ᏻᐃ࡛࠶ࡾ㸪⣽⬊ᇵ㣴୰࡟ࡶ V ࢖࢜ࣥࢆᨺฟࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡋ࡚㸪㦵ⱆ⣽⬊ࡣș┦ୖ࠿ࡽᨺฟࡉࢀࡿẘᛶࢆ᭷ࡍࡿ
V ࢖࢜ࣥࢆ㑊ࡅࡿࡼ࠺࡟ఙᒎࡋ㸪Ș┦࡟ඃ఩࡟᥋╔ࡋࡓࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬ᮏ◊✲࡟ࡼࡾ Ti-6Al-4V ྜ㔠ୖ࡟࠾࠸࡚㸪⭉㣗ฎ⌮ࢆ᪋ࡍࡇ࡜࡛㦵ⱆ⣽⬊ࡣȘ┦࡟ඃඛⓗ࡟᥋╔ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓ㸬ࡇࡢ⤖ᯝࡣ㸪౛࠼ࡤྜ㔠࡟⇕ฎ⌮ࢆຍ࠼ࡿࡇ࡜
࡛Ș┦ࡢ㠃✚ศ⋡ࢆቑຍࡉࡏࡿࡇ࡜࡛㸪㧗ຠ⋡࡟⣽⬊ࢆᇵ㣴ࡍࡿ㝿ࡢ┬࢚ࢿࣝࢠ࣮໬ࢆ
ᐇ⌧ࡍࡿᢏ⾡࡬࡜ࡘ࡞ࡀࡿྍ⬟ᛶࢆ♧၀ࡋ࡚࠸ࡿ㸬ᅗ㸯 Ti-6Al-4V ྜ㔠ࡢ⭉㣗๓ࡢ཯ᑕ㟁Ꮚീᅗ㸰 Ti-6Al-4V ྜ㔠ୖ࡟࠾ࡅࡿ⭉㣗๓ᚋࡢྛ⤌⧊ࡢ㠃✚ศ⋡ཬࡧ⣽⬊᥋╔⋡࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭S.Okano, K. Nisogi, S. Kobayashi, K. Kuroda and T. Okamoto, “Effects of Titanium Surface
Wettability on Osteoblast Behavior” ICMass2019, ྡྂᒇ኱Ꮫ, 2019 ᖺ 11 ᭶ 2 ᪥࣭ ῝⏣ ᇶྐ㸪ᒸ㔝 ⪽㸪ᑠᯘ ༓ᝅ㸪ᒸᮏ ጾ᫂㸪㯮⏣೺௓㸪Ti ྜ㔠ࡢ㔠ᒓ⤌⧊ࡀ㦵ⱆ⣽⬊㸪ᮾிᕤᴗ኱Ꮫ㸪2020 ᖺᣲື࡟୚࠼ࡿᙳ㡪㸪᪥ᮏ㔠ᒓᏛ఍ 2020 ᫓Ꮨ኱఍㸦➨ 166 ᅇ㸧
3 ᭶ 17 ᪥㹼19 ᪥.

138ู⣬ᵝᘧ㸰㸫㸰㏱᩿᫂⇕ࢩ࣮ࢺࡢ㛤Ⓨ࡟ྥࡅࡓ୰✵ࢼࣀ⢏Ꮚࡢ⢭ᐦྜᡂ࡜㞟✚Precise preparation and assembly of hollow nanoparticles for development oftransparent insulation sheetୗᔱᩔ࣭᪩✄⏣኱Ꮫ࣭⌮ᕤᏛ⾡㝔࣭ᩍᤵᒣᮏ⍛♸࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ ᮏ◊✲ㄢ㢟࡛ࡣ㏱᩿᫂⇕ࢩ࣮ࢺࡢ㛤Ⓨ࡟ྥࡅ࡚୰✵ࢩࣜ࢝ࢼࣀ⢏Ꮚ࡟╔┠ࡋࠊ⇕ఏᑟᛶࡢไᚚࡀᮇᚅࡉࢀࡿ୰✵ࢼࣀ⢏Ꮚࡢ⢭ᐦᵓ㐀ไᚚ࡜つ๎㞟✚ࢆ⾜࡞ࡗࡓࠋ୰✵ࢩࣜ࢝ࢼࣀ⢏Ꮚࡣ㏱᫂ᛶࢆಖᣢࡋࡘࡘࡶࠊෆ㒊✵㛫࡜ࢩ࢙ࣝ࡟ࡼࡿࣇ࢛ࣀࣥᩓ஘࡟ࡼࡾᵝࠎ࡞
ከᏍ㉁ᮦᩱࡢ୰࡛ࡶᴟࡵ࡚㧗࠸᩿⇕ᛶ⬟ࢆ♧ࡍࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟ᵝࠎ࡞୰✵ࢩࣜ࢝ࢼࣀ⢏Ꮚࡢྜᡂࡀሗ࿌ࡉࢀ࡚࠸ࡿࡀࠊつ๎㓄ิࡍࡿᮦᩱࡣࡈࡃഹ࠿࡞ሗ࿌࡟
㝈ࡽࢀ࡚࠾ࡾࠊᩘ༑ nm ࡢ୰✵ࢼࣀ⢏Ꮚࢆつ๎㓄ิࡢ⢭ᐦྜᡂࡣᮍࡔ࡟ᣮᡓⓗ࡞ㄢ㢟࡛࠶ࡿࠋࡑࡇ࡛ࠊᮏ◊✲࡛ࡣ⇕ఏᑟ⋡ࡢᇶ♏ⓗ≉ᛶㄪᰝࡢᇶ┙࡜࡞ࡿつ๎㓄ิྍ⬟࡞୰✵ࢼࣀ⢏Ꮚ⮬యࡢྜᡂࢆ㐍ࡵࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
◊✲ᡂᯝ 1 : つ๎㓄ิࢆࡍࡿ୰✵⢏Ꮚࡢ⢭ᐦྜᡂ༢ศᩓࢩࣜ࢝ࢼࣀ⢏Ꮚࡢศᩓᾮ࡟ᑐࡋ࡚ᯫᶫᆺ᭷ᶵ࢔ࣝࢥ࢟ࢩࢩࣛࣥࢆῧຍࡍࡿࡇ࡜
࡛ࠊ༢ศᩓ୰✵⢏Ꮚ࡟㌿᥮ࡍࡿࡇ࡜ࢆⓎぢࡋࠊつ๎㓄ิ࡟ᡂຌ (ᴗ⦼㸸ᅜ㝿఍㆟) ✵㝽⋡ࡸ㞟✚ᵓ㐀࡞࡝ࡢせ⣲ࡀ⇕ఏᑟ⋡࡟୚࠼ࡿᙳ㡪ࢆ᫂ࡽ࠿࡟ࡍࡿࡓࡵ࡟ࡣࠊ㓄ิࡢไᚚࡉࢀࡓ୰

✵ࢼࣀ⢏Ꮚࡢ⋓ᚓࡀᚲせ୙ྍḞ࡛࠶ࡿࠋᡃࠎࡣࡇ
ࢀࡲ࡛࡟࣓ࢯ࣏࣮ࣛࢫࢩࣜ࢝ࢼࣀ⢏Ꮚࡢศᩓᾮ࡟
ᑐࡋ࡚᭷ᶵᯫᶫᆺ࢔ࣝࢥ࢟ࢩࢩࣛࣥࢆῧຍࡍࡿࡇ
࡜࡛ࠊࢥࣟ࢖ࢻ୰✵ࢼࣀ⢏Ꮚࡀ࣏࣡ࣥࢵࢺྜᡂฟ
᮶ࡿࡇ࡜ࢆሗ࿌ࡋ࡚ࡁࡓ(Chem. Mater (2018))ࠋࡇ
ࢀࡣ᭷ᶵࢩࣟ࢟ࢧࣥࢩ࢙ࣝࡀᯒฟࡋࡓᚋ࡟ࠊࢩࣜ
࢝ࢼࣀ⢏Ꮚ⮬యࡀ⁐ゎ࣭෌ᯒฟࡍࡿࡇ࡜࡛ࠊ୰✵⢏Ꮚࡀᙧᡂࡍࡿ࡜࠸࠺࣓࢝ࢽࢬ࣒࡛㐍⾜ࡍࡿ࡜ุ᫂ࡋ࡚࠸ࡿࠋᮏ◊✲ㄢ㢟࡛ࡣᮏᡭἲࢆࡉࡽ࡟Ⓨᒎ

Fig. 1 ༢ศᩓ୰✵⢏Ꮚつ๎㓄ิయࡉࡏࠊ༢ศᩓࡢࢹࣥࢫࢩࣜ࢝ࢼࣀ⢏Ꮚ࡟ᑐࡋ࡚᭷

ࡢ TEM ീᶵᯫᶫᆺ࢔ࣝࢥ࢟ࢩࢩࣛࣥࢆῧຍࡍࡿࡇ࡜࡛ࠊ༢
ศᩓ୰✵ࢼࣀ⢏Ꮚࡢ࣏࣡ࣥࢵࢺ࡛ᚓࡽࢀࡓࠋࡇࡢ୰✵ࢼࣀ⢏Ꮚࡣ⢏ᚄ⣙ 30 nm ࠿ࡘෆᚄ139

15 nm ࡢᶆ‽೫ᕪ 2nm ⛬ᗘࡢ༢ศᩓ⢏Ꮚ࡛࠶ࡾࠊศᩓᾮࢆ஝⇱ࡉࡏࡿࡇ࡜࡛ Fig.1 ࡟♧ࡍࡼ࠺࡞つ๎㓄ิయࡢస〇࡟ࡶᡂຌࡋࡓࠋࡇࡢ୰✵ࢼࣀ⢏Ꮚࡢࢩ࢙ࣝ㒊ࡢከᏍᛶࡣ᭷ᶵ
࢔ࣝࢥ࢟ࢩࢩࣛࣥࡢῧຍ᫬ࡢ pH ࡟ࡼࡾኚ໬ࡍࡿࡇ࡜ࡶศ࠿ࡾࠊ୰✵ࢼࣀ⢏Ꮚࡢ⢏ᚄࢆኚ໬ࡉࡏࡎ࡟✵㝽⋡ࡢࡳࢆไᚚࡍࡿࡇ࡜ࡀྍ⬟ࡔ࡜⪃࠼ࡽࢀࡿࠋ
◊✲ᡂᯝ 2 : ୰✵⢏Ꮚ࡬ࡢࢲࣈࣝࢩ࢙ࣝࡢ௜୚
ᚓࡽࢀࡓ༢ศᩓ୰✵ࢼࣀ⢏Ꮚࡢศᩓᾮ࡟ᑐࡋ࡚ࡉࡽ࡟ᯫᶫᆺ᭷ᶵ࢔ࣝࢥ࢟ࢩࢩࣛࣥࢆ
ῧຍࡍࡿࡇ࡜࡛ࠊࢲࣈࣝࢩ࢙ࣝࡢᙧᡂ࡟ᡂຌࠋ(ᴗ⦼㸸ᅜෆ఍㆟) ᚓࡽࢀࡓ୰✵ࢼࣀ⢏Ꮚࢆ᩿⇕ᮦ࡜ࡋ࡚฼⏝ࡍࡿ㝿࡟ࡣࠊ࣏࣐࣮ࣜ࡜ࡢΰ
ྜࡀ୙ྍḞ࡛࠶ࡿࡀࠊ୍⯡ⓗ࡟୰✵ࢼࣀ⢏Ꮚࡢෆ㒊࡟࣏࣐࣮ࣜࡀ㈏ධࡍࡿ
࡜≉ᛶࡀపୗࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸

Fig. 2 ༢ศᩓ୰✵⢏Ꮚ࡬ࡢࢲࣈࣝࢩ࢙ࣝࡢ௜୚

ࡿࠋࡑࡇ࡛ࠊ୰✵እ㒊⾲㠃ࡢࡳࢆ㑅ᢥⓗ࡟ಟ㣭ࡋࠊ୰✵ෆ㒊࡬ࡢ࣏࣐࣮ࣜࡢ㈏ධࢆᢚไࡍࡿᚲせࡀ࠶ࡿࠋᮏ◊✲ㄢ㢟࡛ࡣ◊✲ᡂᯝ 1 ࡛ྜᡂ࡟ᡂຌࡋࡓ༢ศᩓ୰✵ࢼࣀ⢏Ꮚ࡟ᑐࡋ࡚ࠊࡉࡽ࡟᭷ᶵᯫᶫᆺ࢔ࣝࢥ࢟ࢩࢩ
ࣛࣥࢆῧຍࡍࡿࡇ࡜࡛ࠊ୰✵ෆ㒊࡜እ㒊࡛␗࡞ࡿ⤌ᡂࢆ᭷ࡍࡿࢲࣈࣝࢩ࢙ࣝᆺ୰✵ࢼࣀ⢏Ꮚࢆྜᡂࡍࡿࡇ࡜࡟ᡂຌࡋࡓࠋ୰✵እ㒊⾲㠃࡟ࡢࡳ࣏࣐࣮ࣜ࡜┦஫స⏝ࡍࡿᐁ⬟ᇶࢆᑟධࡍࡿࡇ࡜࡛ࠊ࣏࣐࣮ࣜࡢ㈏ධࢆຠᯝⓗ࡟ᢚไ࡛ࡁࡿ࡜ண᝿ࡉࢀࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼࣭ ヱᙜ࡞ࡋ
㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Ώ㎶ኳᾏ, ᒣᮏ⍛♸, ෆ⏣᪩⣖, ୗᔱᩔ, ࿴⏣ᏹ᫂, 㯮⏣୍ᖾ, Preparation of Colloidal
Monodispersed Hollow Siloxane-based Nanoparticles with Controlled Shell Structures, The
13th Pacific Rim Conference of Ceramics Societies, Ἀ⦖ࢥࣥ࣋ࣥࢩࣙࣥࢭࣥࢱ࣮, 2019ᖺ 10 ᭶ 27 ᪥㹼11 ᭶ 1 ᪥ (ᅜ㝿఍㆟)࣭ Ώ ㎶ ኳ ᾏ , ᒣ ᮏ ⍛ ♸ , ࿴ ⏣ ᏹ ᫂ , ୗ ᔱ ᩔ , 㯮 ⏣ ୍ ᖾ , Preparation of Colloidal
Monodispersed Hollow Nanoparticles with Double Organosiloxanebased Shells, ᪥ᮏ໬Ꮫ఍➨ 100 ᫓Ꮨᖺ఍ 2020, ᮾி⌮⛉኱Ꮫ㔝⏣࢟ࣕࣥࣃࢫ, 2020 ᖺ 3 ᭶ 22 ᪥㹼25 ᪥ (ᅜෆ఍㆟)㸺⏘ᴗ㈈⏘ᶒ㸼࣭ ヱᙜ࡞ࡋ

140

ู⣬ᵝᘧ㸰㸫㸰඲ᅛయ㟁ụ࡟࠾ࡅࡿࣂࣥࢻ࢔ࣛ࢖࣓ࣥࢺ࡜⏺㠃᢬ᢠࡢ㛵ಀࡢㄪᰝInvestigation of relationship between band alignment and interface resistance inall-solid-state batteryᕝཱྀ᪸ᙪ࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭ຓᩍ ཎ⏣ಇኴ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ 㕥ᮌஂ⏨࣭㟼ᒸ኱Ꮫ࣭㟁ᏊᕤᏛ◊✲ᡤ࣭ᩍᤵ ⬥㇂ᑦᶞ࣭㟼ᒸ኱Ꮫ࣭๰㐀⛉Ꮫᢏ⾡኱Ꮫ㝔࣭ᩍᤵ ᆏඖᑦ⣖࣭㟼ᒸ኱Ꮫ࣭Ꮫ⾡㝔ᕤᏛ㡿ᇦ࣭෸ᩍᤵ Ᏹ἞ཎᚭ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ 㓟໬≀ᅛయ㟁ゎ㉁ࢆ⏝࠸ࡓࠕ㓟໬≀඲ᅛయ㟁ụࠖࡣᏳ඲࠿ࡘᏳᐃ࡞ḟୡ௦ᆺ㟁ụ࡜ࡋ࡚ࡑࡢᐇ⏝໬ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋᐇ⏝໬࡟ሓ࠼ᚓࡿᛶ⬟ᐇ⌧ࡢࡓࡵ࡟ࡣᵝࠎ࡞ㄢ㢟ࡀṧࡉࢀ࡚࠸ࡿࡀࠊ≉࡟ၥ㢟࡜࡞ࡗ࡚࠸ࡿࡢࡣࠊᅛయ㟁ゎ㉁࡜㟁ᴟά≀㉁ࡢ⏺㠃࡛⏕ࡌࡿ⏺
㠃᢬ᢠ࡛࠶ࡿࠋ⏺㠃᢬ᢠࡢཎᅉ࡜ࡋ࡚ࠊྛᮦᩱ⏺㠃ࡢᆒ୍ᛶࡔࡅ࡛࡞ࡃࠊ✵㛫㟁Ⲵᒙࡢᙧᡂࠊ┦஫ᣑᩓࠊ㟁ゎ㉁ࡢ㓟໬ศゎ཯ᛂ࡞࡝ᵝࠎ࡞࣓࢝ࢽࢬ࣒ࡀᥦ᱌ࡉࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊ≉࡟ṇᴟ㸭ᅛయ㟁ゎ㉁⏺㠃ࡢ⏺㠃᢬ᢠⓎ⏕࣓࢝ࢽࢬ࣒ゎ᫂࡟ᑐࡋ࡚㟁ᏊㄽࡢほⅬࢆᑟධࡍࡿࠋ⏺㠃࡛㉳ࡇࡿ཯ᛂ࡛ࡣࠊ㟁ゎ㉁ࡢ㟁఩❆࡜ṇᴟᮦᩱࡢ Li ࡢ໬Ꮫ࣏ࢸࣥ
ࢩࣕࣝࡢ㛵ಀࡀ㔜せ࡛࠶ࡿࡀࠊࡑࢀࡔࡅ࡞ࡃ⏺㠃ࡢ Li ᤵཷࡢ㝿࡟ࡣ㟁Ꮚࡀ㛵୚ࡍࡿࡓࡵࠊ㟁Ꮚࡢ⛣ືࡶ⪃៖ࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋලయⓗ࡟ࡣࠊṇᴟ㸭ᅛయ㟁ゎ㉁㸭
㈇ᴟࡢ୕ᒙᵓ㐀ࡢ✚ᒙⷧ⭷ࢆస〇ࡋࠊࡑࡢṇᴟᮦᩱࡢࡳࠊࡲࡓࡣ㟁ゎ㉁ᮦᩱࡢࡳࢆኚ໬
ࡉࡏࠊ␗࡞ࡿࣂࣥࢻ࢔ࣛ࢖࣓ࣥࢺ࡛⏕ࡌࡿ⏺㠃᢬ᢠࢆẚ㍑᳨ウࡍࡿࠋࡑࡢ㊊ࡀ࠿ࡾ࡜ࡋ
࡚᫖ᖺᗘࡣࠊRF ࣐ࢢࢿࢺࣟࣥࢫࣃࢵࢱἲࢆ⏝࠸࡚ࠊṇᴟ࡜ࡋ࡚ LiMn2O4 (LMO)ⷧ⭷ࠊᅛయ㟁ゎ㉁࡜ࡋ࡚(La,Li)TiO3 (LLTO)ⷧ⭷ࠊ㈇ᴟ࡜ࡋ࡚ Li4Ti5O12 (LTO)ⷧ⭷ࡢస〇࡟ྲྀࡾ⤌ࡳࠊ࠸ࡎࢀࡢ≀㉁࡟ࡘ࠸࡚ࡶⷧ⭷స〇࡟ᡂຌࡋࡓࠋ
ᮏᖺᗘࡣࠊࡉࡽ࡟ᮦᩱ㑅ᢥᛶࢆᗈࡆࡿ࡭ࡃࠊ㓟໬≀ᅛయ㟁ゎ㉁ࡢᐇ⏝ᮦᩱ࡜ࡋ࡚᭷ᮃ
どࡉࢀ࡚࠸ࡿ࣮࢞ࢿࢵࢺᆺࢪࣝࢥࣥ㓟ሷ Li7La3(Zr,Ta)2O12 (LLZTO)ࡢⷧ⭷స〇ࢆヨࡳࡓࠋࡋ࠿ࡋࠊࡇࢀࡲ࡛౑⏝ࡋ࡚࠸ࡓࢫࣃࢵࢱ⿦⨨ࡀᨾ㞀ࡢࡓࡵ࡟⤖ᬗ໬࡟ᚲせ࡞ᗘ

(700Υ)࡛ࡢⷧ⭷స〇ࡀ࡛ࡁ࡞ࡃ࡞ࡗ࡚ࡋࡲࡗࡓࠋࡑࡇ࡛ࠊ700ΥࢆᏳᐃ࡟฼⏝࡛ࡁࡿูࡢࢫࣃࢵࢱ⿦⨨ࢆධᡭࡋࠊᡂ⭷࡟ྲྀࡾ⤌ࢇࡔࡀࡑࡢᗄఱᏛⓗ㓄⨨࡟ࡼࡾ LLZTO ࡢࢭ࣑ࣛࢵࢡࢫࢱ࣮ࢤࢵࢺࢆ⏝࠸ࡿ㝈ࡾࠊ⌧ᐇⓗ࡞ᡂ⭷࣮ࣞࢺࡀᚓࡽࢀࡎࠊࡈࡃⷧ࠸⭷ཌࡢࡓࡵ࡟ࠊᚓࡽࢀࡓⷧ⭷ࡢホ౯ࡶᅔ㞴࡛࠶ࡗࡓࠋࡇࢀࢆᡴ㛤ࡍ࡭ࡃࠊᡂ⭷࣮ࣞࢺྥୖࡢࡓࡵ
࡟㔠ᒓࢱ࣮ࢤࢵࢺࢆ⏝࠸ࡿࡇ࡜ࢆᛮ࠸⮳ࡗࡓࠋࡇࡇ࡛ࠊLa 㔠ᒓࡣ኱Ẽ୰࡛ࡓࡔࡕ࡟㓟໬ࡋ࡚ࡋࡲ࠺ࡀࠊࡼࡾ㔜࠸ᕼᅵ㢮ඖ⣲࡛࠶ࡿ Sm ࡛࠶ࢀࡤ኱Ẽ୰࡛ࡶ㔠ᒓ࡜ࡋ࡚ẚ㍑ⓗᏳᐃ࡛࠶ࡿࠋࡍ࡞ࢃࡕࠊLa ࢆ Sm ࡟⨨᥮ࡋࡓ LSmZTO ࡛࠶ࢀࡤࠊ㔠ᒓࢱ࣮ࢤࢵࢺࢆ⏝࠸ࡓᡂ⭷ࡀྍ⬟࡜ゝ࠼ࡿࠋ

141୍᪉࡛ࠊLSmZTO ࡣࣂࣝࢡ࡟࠾࠸࡚ࡶྜᡂ
ࡢሗ࿌౛ࡀ↓࠸ࠋࡑࡇ࡛ᮏᖺᗘࡣࠊࣂࣝࢡヨᩱ࡟࠾࠸࡚ LSmZTO ࡢྜᡂࢆヨࡳࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 Li6.75RE3Zr1.75Ta0.25O12 (LREZTO) (RE=La,
Sm) ࢆ ᅛ ┦ ཯ ᛂ ἲ ࡟ ࡼ ࡾ ྜ ᡂ ࢆ ヨ ࡳ ࡓ ࠋ
Li2CO3ࠊRE2O3ࠊZrO2ࠊTa2O5 ࡢ⢊ᮎࢆฟⓎཎᩱ࡜ࡋ࡚ࠊLi ࡢࡳ 25%㐣๫ࠊࡑࡢ௚ࡢඖ⣲ࡣ⤌ ᡂ ᘧ ࡟ྜ ࠺ ࡼ࠺ ࡟ ⛗㔞 ࣭ ‵ ᘧΰ ྜ ࡋࠊ
Li2CO3 ࡢ⼥Ⅼ௜㏆࡛࠶ࡿ 700Υ࡛ 5 ᫬㛫ಖᣢࡋࠊࡑࡢᚋ㐃⥆ⓗ࡟᪼ ࡋ 900Υ࡛ 10 ᫬㛫↝ᡂࡋࡓࠋᚓࡽࢀࡓ௬↝⢊ᮎࢆ஝ᘧ࡛⢊○ࡋࠊ

Fig. 1: XRD patterns of LLaZTO andࡶ࠺୍ᗘྠࡌ

LSmZTO powders.

ᗘࢩ࣮ࢡ࢚ࣥࢫ࡛↝ᡂࡋࡓࠋࡇࡢࡼ࠺࡟ࡋ࡚ᚓࡽࢀࡓヨᩱࢆ X ⥺ᅇᢡᐃࡋࡓ⤖ᯝࢆ Figure 1 ࡟♧ࡍࠋ

Intensity (arb. units)(XRD)࡛

RE=La ࡢヨᩱ࡛ࡣࡍ࡭࡚ࡢᅇᢡࣆ࣮ࢡ࡟࢞
࣮ࢿࢵࢺᵓ㐀⏤᮶ࡢᣦᩘࢆྠᐃ࡛ࡁࡓࡓࡵ
༢┦ヨᩱࡀᚓࡽࢀ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿࠋࡲࡓࠊ
RE=Sm ࡛ࡣ୙⣧≀┦(Sm2Zr2O7)⏤᮶ࡢࡈࡃᑠࡉ࠸ࣆ࣮ࢡࡶぢࡽࢀࡿࡶࡢࡢࠊ௚ࡢࡍ࡭࡚

LLaZTO

LSmZTOࡢࣆ࣮ࢡࡣ࣮࢞ࢿࢵࢺᵓ㐀⏤᮶ࡢᣦᩘ࡟ྠ
ᐃ࡛ࡁࡓࡓࡵࠊ࡯ࡰ༢┦ࡀᚓࡽࢀ࡚࠸ࡿࡇ࡜

200
400
600
Raman Shift (cm -1)

ࡀศ࠿ࡿࠋࡇࢀࡽࡢヨᩱࡢ࣐ࣛࣥศග ᐃ⤖

800

ᯝࢆ Figure 2 ࡟♧ࡍࠋLLaZTO ࡜ LSmZTO ࡛ࢫ࣌ࢡࢺࣝᙧ≧ࡀࡼࡃఝ࡚࠸ࡿࡇ࡜ࡀศ࠿

Fig. 2: Raman spectra of LLaZTO andࡿࠋࡇࡢࡇ࡜࠿ࡽࠊRE=Sm ࡟࠾࠸࡚ࡶࠊ࢖

LSmZTO powders.

࢜ࣥఏᑟᛶࡀ㧗ࡃ࡞ࡿ࡜ࡉࢀ࡚࠸ࡿ❧᪉ᬗࡀᐇ⌧ࡍࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋ௒ᚋࡣ LSmZTO ࡢࣜࢳ࣒࢘࢖࢜ࣥఏᑟ⋡࡟ࡘ࠸࡚ㄪᰝ
ࡍࡿ࡜࡜ࡶ࡟ࠊࡑࡢⷧ⭷స〇ࢆヨࡳࡿணᐃ࡛࠶ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦11pt ᫂ᮅయ, Times㸧࣭(ཱྀ㢌) “(La,Li)TiO3 Epitaxial Thin Films Grown by RF Magnetron Sputtering”, T.
Kawaguchi, M. Naka, K. Sugihara, N. Sakamoto, H. Suzuki1 and N. Wakiya,
ICMaSS2019, A8-II-2, ྡྂᒇ኱Ꮫ(ᮾᒣ࢟ࣕࣥࣃࢫ) (2019 ᖺ 11 ᭶)࣭(ཱྀ㢌) “࣮࢞ࢿࢵࢺᆺࣜࢳ࣒࢘࢖࢜ࣥᅛయ㟁ゎ㉁ࡢᕼᅵ㢮ඖ⣲⨨᥮ຠᯝ”, ᮡཎ◊, ᕝཱྀ᪸ᙪ, ᆏඖᑦ⣖, 㕥ᮌஂ⏨, ⬥㇂ᑦᶞ, ᪥ᮏᮦᩱᏛ఍ᮾᾏᨭ㒊ㅮ₇఍, 306, 㟼ᒸ኱Ꮫ(὾ᯇ࢟ࣕࣥࣃࢫ) (2020 ᖺ 3 ᭶)142ู⣬ᵝᘧ㸰㸫㸰

SiC ᇶᯈୖࢫࣃࢵࢱ AlN ⭷ࡢ⏺㠃ᵓ㐀ゎ᫂
Elucidation of sputter-deposited AlN/SiC interface structure⫝̸ ୡ⋢ ୕㔜኱Ꮫ኱Ꮫ㝔ᆅᇦ࢖ࣀ࣮࣋ࢩࣙࣥᏛ◊✲⛉ ຓᩍ୕Ꮿ ⚽ே ୕㔜኱Ꮫ኱Ꮫ㝔ᆅᇦ࢖ࣀ࣮࣋ࢩࣙࣥᏛ◊✲⛉ ᩍᤵཎ⏣ ಇኴ ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ㅮᖌᏱ἞ཎ ᚭ ྡྂᒇ኱Ꮫᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ᩍᤵ㸯㸬◊✲┠ⓗ Ultraviolet light-emitting diodes (UV-LEDs) have attracted considerable attention for avariety of applications such as purification, sterilization, solid lighting, biochemistry, and so on.
Recently the high-quality sputtered AlN films grown on sapphire and SiC by high temperature“face-to-face” annealing has been realized. The Si substrates are candidate templates for theheteroepitaxial growth of III-nitrides because of various advantages such as low cost, large area,
high quality, and established processes. Accordingly, a SiC layer formed by carbonization on Si
substrates can be used as a buffer layer for nitride growth; that is, a buffer layer can be obtainedby this simple, inexpensive process. In order to realize further quality improvement of AlN
grown on carbonize-Si substrates, it is necessary to conduct structural analysis of sputtering
AlN/SiC interface. In this study, the structure and properties of sputtering AlN/carbonized Si
interface would be elucidated.

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
(1) The strain in AlN/SiC during high temperature annealing
The a-axis lattice constant (a) of AlN layer on SiC was investigated by X-ray diffraction
measurement and the transition of the a-axis lattice strain (ߝ ܽ ) of AlN films at each stage ofsample fabrication was calculated. The values of a and ߝ ܽ for AlN layer sputtered on SiC
substrates at different process temperature were calculated by using Eqs. (1) and (2):ܽ ‫݈ܰܣ‬,݁‫( ݅݌‬T ݃ )=(ܽ ‫݈ܰܣ‬,݁‫( ݅݌‬RT)×ܽ ܵ݅‫ܥ‬,ܾ‫( ݈݇ݑ‬T ݃ ))/(ܽ ܵ݅‫ܥ‬,ܾ‫( ݈݇ݑ‬RT))(1)

ߝ ܽ (T ݃ )=(ܽ ‫݈ܰܣ‬,݁‫( ݅݌‬T ݃ )íܽ ‫݈ܰܣ‬,ܾ‫( ݈݇ݑ‬T ݃ ))/(ܽ ‫݈ܰܣ‬,݁‫( ݅݌‬T ݃ ))(2)

The results are summarized and compared with AlN layer sputtered and annealed on sapphire in
as shown in Fig. 1. The illustrations of explanation are shown under graphs, respectively.
The strain state of AlN sputtered on SiC is different from that on sapphire substrate. It could
be caused by the different interface of AlN and substrates.
(2) AlN film sputtered on 3C-SiC/Si
An AlN film with 175nm thick was sputtered on 3C-SiC/Si substrate (with CMP process) andannealed under 1300ºC for 4.5 hours with N 2 atmosphere. The surface morphology and crystal
quality of sputter-annealed AlN films on 3C-SiC/Si and sapphire were investigated by AFM and143

XRD. The results indicated that it is possible to improve AlN film quality on 3C-SiC/Si byannealing.

Fig.1 the transition of the a-axis lattice strain (ߝ ܽ ) of AlN films on (a) 4H-SiC and (b) sapphireat each stage of sample fabrication. The illustrations are shown below the graph, respectively.

Fig. 2 The X-ray rocking curves (XRC) of AlN sputtered on 3C-SiC/Si before and after
annealing at 1300ºC.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࡞ࡋ.
㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ

144

+u`E

*+,&() "! ''

Direct Observation of Spontaneous Electric Polarization in GaN Crystals throughUltra-High Sensitive Nuclear-Spin Measurements
研究代表者
佐々木

進・新潟大学・工学部・准教授

研究分担者
天野 浩・名古屋大学・未来材料・システム研究所・教授
久志本真希・名古屋大学・未来材料・システム研究所・助教
白石 賢二・名古屋大学・未来材料・システム研究所・教授
森 勇介・名古屋大学・未来材料・システム研究所・寄附部門教授
研究所担当教員
天野 浩・名古屋大学・未来材料・システム研究所・教授
久志本真希・名古屋大学・未来材料・システム研究所・助教
白石 賢二・名古屋大学・未来材料・システム研究所・教授
森 勇介・名古屋大学・未来材料・システム研究所・寄附部門教授.-
 GaN をはじめとする窒化物半導体では，自発分極（＝イオン結合性が強いことに起因して，物質内部に生じる静電界）が存在すると考えられており，その傍証として複数の実験事実が報告されてきた。しかしながら，申請者の知る限り，このような自発分極を実験により直接観測したとの報告は無い。研究代表者は，物質に照射した非破壊の電波に対する核スピンからの微弱な応答を検出する装置をゼロから独自に構築し，市販装
置の数 100 倍の超高感度化を実現している。核スピンは，対象とする物質の構成要素であるため，物質内部のミクロな電界を直接的に観測できる，内蔵された究極のプローブである。この事実に着目し，GaN 結晶の Ga 核スピンをプローブとして，GaN 結晶
内部の自発分極を直接的に観測することを目的とする。今回はとくに，最新の精度をもった第一原理計算を援用し，実験で得られた Ga 原子核での電場「勾配」の値をどの程度再現するかを調べる。もし，実験とのよい一致をみた場合には，理論計算で得られた内部電場（＝自発分極）の方向が明らかとなる。

/-% 最新の計算手法である WIEN2k と OpenMX とを用いて，第一原理計算により c 面
GaN 自立結晶の Ga 原子核位置での電場勾配を計算した。
＊＊＊＊＊＊＊＊＊

非公開箇所

その１

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊

145

16

2

この計算によって得られた Ga 原子核における電場勾配は，4.8 x 10 [V/m ]となり，
162

実験値 6.3 x 10 [V/m ]と極めてよい一致を示している。
以上から，理論と実験の両面から，c 面 GaN 自立結晶においては，自発分極は確かに c 軸方向に生じており，Ga 原子から N 原子への向きであることが明らかとなった。
＊＊＊＊＊＊＊＊＊

非公開箇所

その２

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊#'$＜国際会議＞
Susumu Sasaki1, 2, Ryo Kusanagi1, Kohei Suzuki1, Yusuke Mori3, 4 , Maki Kushimoto 4, Hiroshi
Amano4 and Kenji Shiraishi4, “Direct Observation of Spontaneous Polarization in Freestanding
GaN Through Nuclear Magnetic Resonance”, SSDM2019, Nagoya University, 2019 C 9 U146ู⣬ᵝᘧ㸰㸫㸰ᨺᑕ⥺࠿ࡽ㟁Ẽ࡬ࡢ㧗ຠ⋡࡞┤᥋࢚ࢿࣝࢠ࣮ኚ᥮ࢆྍ⬟࡟ࡍࡿ᭷ᶵ
༙ᑟయ/CNT ⷧ⭷ࡢ㛤Ⓨ
Development of the organic semiconductor/CNT thin-film for the direct energy
conversion from radiation to electricity with high efficiency▼஭⪽࣭ᮾி㟁ᶵ኱Ꮫ࣭⌮ᕤᏛ㒊࣭ຓᩍ㕥ᮌ្࣭ᮾி㟁ᶵ኱Ꮫ࣭⌮ᕤᏛ◊✲⛉࣭ಟኈㄢ⛬㸯ᖺ℈⏣Ẏ࣭ᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤ࣭≀⌮ᕤᏛ㒊 㟼㟁ຍ㏿ჾ㐠㌿ᐊ࣭ᐊ㛗኱㔝㞝㧗࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶࢚ࣞࢡࢺࣟࢽࢡࢫ㞟✚◊✲ࢭࣥࢱ࣮࣭ᩍᤵ
㸯㸬◊✲┠ⓗ ་⒪⌧ሙ࡞࡝࡛ࡣ㸪౫↛࡜ࡋ࡚ᨺᑕᛶ་⸆ရࡢ㧗࠸㟂せࡀ࠶ࡾ㸪౑⏝῭ࡳࡢ་⒪⏝ᨺᑕᛶᗫᲠ≀ࡣ㛗࠸ᖺ᭶࡟ΏࡿᏳ඲࡞ಖ⟶࣭⟶⌮ࡀᚲせ࡜ࡉࢀ࡚࠸ࡿ㸬ࡇ࠺ࡋࡓᨺᑕᛶᗫ
Რ≀ࡣ⵳✚ࡢ୍㏵ࢆࡓ࡝ࡿ୍᪉࡛㸪౑⏝῭ࡳ࡞ࡀࡽࡶᨺᑕ⥺ࢆฟࡋ⥆ࡅࡿࡓࡵ㸪Ᏻᐃ࡞࢚ࢿࣝࢠ࣮※࡜ࡋ࡚ࡢ᭷ຠά⏝ࡀᮃࡲࢀࡿ㸬ࡇࢀ࡟ᑐࡋ࡚㸪኱㠃✚໬ࡀྍ⬟࡞᭷ᶵ༙ᑟ
య࡜ᨺᑕ⥺⪏ᛶࢆ᭷ࡍࡿ CNT ⷧ⭷ࢆ⤌ࡳྜࢃࡏࡿࡇ࡜࡛㸪ᨺᑕᛶᗫᲠ≀࠿ࡽࡢ᪂ࡓ࡞
Ⓨ㟁ࢹࣂ࢖ࢫࡢ㛤Ⓨࡀᮇᚅࡉࢀࡿ㸬ᮏ◊✲࡛ࡣ㸪ࡑࡢ㊊᥃࠿ࡾ࡜ࡋ࡚㸪PEN ᇶᯈࡢྠ୍
⾲㠃࡟㏱᫂ᛶ࡜ᨺᑕ⥺⪏ᛶࢆేࡏᣢࡘ࣮࢝࣎ࣥࢼࣀࢳ࣮ࣗࣈ㸦CNT㸧ࢆ⏝࠸ࡓⷧ⭷㟁ᴟࢆస〇ࡋ㸪X ⥺࡟ࡼࡿⓎ⏕㟁ὶࢆホ౯ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᅗ㸯࡟ᐇ㦂࡛౑⏝ࡋࡓࢹࣂ࢖ࢫࡢᵓ㐀ࢆ♧ࡋࡓ㸬స〇࡛ࡣ㸪ࡲࡎጞࡵ࡟㸪ཌࡉ 125 Pm ࡢ PEN ᇶᯈ㸦Teonex® Q65H,TEIJIN㸧ࡢ⾲㠃࡟኱Ẽᅽࣉࣛࢬ࣐࡟ࡼࡿぶỈ໬ฎ⌮ࢆ᪋ࡋࡓ㸬⥆࠸࡚㸪࣓ࢱ࣐ࣝࢫࢡࢆ⏝࠸࡚ SWNT ࡢ IPA ศᩓ⁐ᾮ㸦0.2
wt%㸧ࢆࢫࣉ࣮ࣞࢥ࣮ࢺࡋ㸪CNT ⷧ⭷㟁ᴟࢆࣃࢱ࣮ࢽࣥࢢࡋ

1 mm
PEN sub.

125 Pmᅗ㸯 ࢹࣂ࢖ࢫࡢᵓ㐀㸬ࡓ㸬௒ᅇࡢᐇ㦂࡛ࡣ㸪౑⏝ࡋࡓ㟁ᴟࡢ㛫㝸ࡣ 1 mm㸪ᖜࡣ 10mm ࡜ࡋࡓ㸦ᅗ㸯㸧㸬 ࢹࣂ࢖ࢫ࡬ࡢ X ⥺↷ᑕᐇ㦂ࡣ㸪ᨺᑕ⥺་Ꮫ⥲ྜ◊✲ᡤ࡟࡚ TITAN-320 ࢆ฼⏝ࡋ࡚ᐇ᪋ࡋࡓ㸬స〇ࡋࡓࢹࣂ࢖ࢫࡣ㸪ࢫࢸࣥࣞࢫ〇ࡢ┿✵ࢳࣕࣥࣂ࣮ෆ࡟タ⨨ࡋ㸪

36.10
20.54
d = 1.0 mm

10.18
5.57
2.36
1.18
0

1.010-2 Pa ⛬ᗘࡢ┿✵ᘬࡁࢆࡋࡓ㸬⥆࠸࡚㸪࢔ࢡࣜࣝ〇↷ᑕ❆ࡢእഃ࠿ࡽ㸪ᐇຠ࢚ࢿࣝࢠ࣮82 keV ࡢ X ⥺ࢆmGy/secࢹࣂ࢖ࢫ⾲㠃࡟↷ᑕࡋࡓ㸬⥺㔞⋡ࡣ㸪⟶㟁ὶ࡟ຍ࠼࡚㸪⥺ ※ 㸫 ࢹ ࣂ࢖ ࢫ ⾲ 㠃 㛫ࡢ ㊥ 㞳 ࢆ ኚ໬ ࡉ ࡏ ࡿ ࡇ࡜ ࡛

in vac.

1.18~36.10 mGy/sec ࡢ⠊ᅖ࡛ไᚚࡋࡓ㸬㟁Ẽ≉ᛶࡣ↷ᑕᐊࡢእഃ࠿ࡽ㐲㝸᧯స࡛ࣜ࢔ࣝࢱ࢖࣒

ᐃࡋ㸪ࢩࣕࢵ

147

ᅗ㸰 X ⥺↷ᑕ୰ࡢ I㸫V ≉ᛶ㸬ࢱ࣮࡛ X ⥺↷ᑕࡢ㛤ጞ࡜೵Ṇࢆ⾜ࡗࡓ㸬 ๓㡯ࡢᅗ㸰࡟㸪ྛ⥺㔞⋡࡟࠾ࡅࡿ X ⥺↷ᑕୗࡢ㟁ὶ㸫㟁ᅽ≉ᛶ㸦IV ≉ᛶ㸧ࢆ♧ࡋࡓ㸬X ⥺࡟ࡼࡿⓎ⏕㟁ὶࡀほࡉࢀ㸪ࡑࡢ᣺ࡿ⯙࠸ࡣ༳ຍ㟁ᅽ࡟ᑐࡋ࡚㠀⥺ᙧ࡟ቑຍࡋࡓ㸬༳ຍ㟁ᅽࢆ+20 V ௨ୖ࡟ࡍࡿ࡜㸪㏵୰࡛㟁ὶቑຍࡢ๭ྜࡀ኱ࡁࡃ࡞ࡗࡓ㸬୍᪉㸪㈇㟁ᅽࢆ༳ຍࡋࡓሙྜࡶ㠀⥺ᙧ࡞㟁ὶቑຍࡀほࡉࢀࡓࡀ㸪ṇ㟁ᅽࡢሙྜ࡜ࡣ␗࡞ࡾ㸪㏵୰࡛

㟁ὶቑຍࡢ๭ྜࡀ኱ࡁࡃ࡞ࡿࡇ࡜ࡣ࡞࠿ࡗࡓ㸬ࡇࡢཎᅉ࡟ࡘ࠸࡚ࡣ㸪⌧ᅾㄪᰝ୰࡛࠶ࡿ㸬 ḟ࡟㸪ࢹࣂ࢖ࢫ࡟ 10 V ࡢ㟁ᅽࢆ༳ຍࡋ≧ែ࡛㸪X⥺↷ᑕࡢ㛤ጞ࡜೵Ṇࢆ⧞ࡾ㏉ࡋ࡞ࡀࡽ㟁ὶࢆᐃࡋ

X-ray onOffmGy/secࡓ㸬ࡑࡢ⤖ᯝ㸪ᅗ㸱࡟♧ࡋࡓࡼ࠺࡟㸪ྛ⥺㔞⋡࡟࠾

36.10

࠸࡚㟁ὶᛂ⟅ࢆ☜ㄆࡋࡓ㸬ࡑࡇ࡛㸪↷ᑕࡢ㛤ጞ┤ᚋ

20.54

࡜೵Ṇ┤๓ࡢᖹᆒ㟁ὶࢆⓎ⏕㟁ὶ'I ࡜ᐃ⩏ࡋ㸪㸱ᅇ

10.18

ࡢ㟁ὶᛂ⟅ࡢᖹᆒࢆྛ⥺㔞⋡࡟ᑐࡋ࡚ᅗ㸲࡟ࣉࣟࢵ

5.57
2.36
1.18

ࢺࡋࡓ㸬ᅗ㸲࡛ࡣ㸪'I ࡣ 10.18 mGy/sec ࡲ࡛⥺ᙧ࡟ቑຍࡋ㸪20.54 mGy/sec ௨ୖࡢ㧗⥺㔞⋡࡛㣬࿴ࡍࡿഴྥࢆ♧ࡋࡓ㸬⥺㔞⋡ࡀ 10.18 mGy/sec ࡢ X ⥺↷ᑕୗ࡛ࡣ㸪㟁ὶ⤒㊰ࢆ PEN ᇶᯈ࡟ไ㝈ࡋࡓ࡜ࡁࡢ㟁Ẽ᢬ᢠ⋡ࡣ 1.571011 :ācm ࡜㠀ᖖ࡟㧗࠸ࡢ࡟ᑐࡋ࡚㸪௒ᅗ㸱 X ⥺↷ᑕ࡟ᑐࡍࡿ㟁ὶᛂ⟅㸬
0.5ᅇࡢᐇ㦂࡛ࡣ 1.25109 :ācm ࡜⣙ 2 ᱆ᑠࡉ࠿ࡗࡓ㸬

0.4

ࡉࡽ࡟㸪❅⣲࢞ࢫࢆᑟධࡍࡿ࡜㟁ὶࡀቑຍࡋࡓࡇ࡜

0.3

࠿ࡽ㸪ほ

ࡉࢀࡓ㟁ὶࡣ PEN ᇶᯈࢆὶࢀࡿࡶࡢ࡛ࡣ

0.2

࡞ࡃ㸪ṧ␃኱Ẽࡀ㟁㞳ࡋ⏕ᡂࡋࡓ㟁Ⲵ࡟ࡼࡿࡶࡢ࡜

0.1⪃࠼ࡽࢀࡿ㸬ࡇࡢሙྜ㸪ప⥺㔞⋡࡛ࡣ⏕ᡂ㟁Ⲵࡀᑡ࡞ࡃ඲࡚㟁ᴟ࡟ᅇ཰ࡉࢀࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪㧗⥺㔞⋡࡛ࡣ⏕ᡂ㟁Ⲵࡀ㐣ከ࡟࡞ࡾ㸪㟁ᴟ࡛ᅇ཰ࡋࡁ
ࢀ࡞࠿ࡗࡓࡓࡵ࡟㣬࿴ഴྥࢆ♧ࡋࡓ࡜᥎

0
0

@10 V

10
20
30
40
Dose rate (mGy/sec)ᅗ㸲 Ⓨ⏕㟁ὶࡢ⥺㔞⋡౫Ꮡᛶ㸬ࡉࢀࡿ㸬 ᮏ◊✲࡛ࡣ㸪PEN ᇶᯈ⾲㠃࡟ CNT ⷧ⭷㟁ᴟࢆస〇ࡋ㸪X ⥺↷ᑕ࡟ࡼࡿⓎ⏕㟁ὶࡢᛂ⟅ࢆほࡋࡓ㸬ࡇࡢ㟁ὶࡣ㸪ṧ␃Ẽయࡢ㟁㞳࡟ࡼࡿࡶࡢ࡛࠶ࡾ㸪⥺㔞⋡࡟ᑐࡋ࡚ప⥺㔞⋡࡛ࡣ⥺ᙧ࡟ቑຍࡍࡿࡀ㸪㧗⥺㔞⋡࡛ࡣ㣬࿴ࡍࡿഴྥࢆ♧ࡋࡓ㸬௒ᚋࡢⓎ㟁ࢹࣂ࢖ࢫࡢ
㛤Ⓨ࡟࠾࠸࡚㸪PEN ᇶᯈ௨እࡢ㟁㞳㟁ὶࡢᐤ୚ࡶ⪃៖ࡍࡿᚲせࡀ࠶ࡿ㸬࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ᯇ⏣⿱அ㸪㕥ᮌ្㸪▼ᕝ๛ᘯ㸪ᑠす㍤᫛㸪℈㔝Ẏ㸪኱㔝㞝㧗㸪ᖹᑿᩄ㞝㸪▼஭⪽㸪ྠ୍ᇶᯈ⾲㠃ࡢ CNT ⷧ⭷㟁ᴟࢆ⏝࠸ࡓ X ⥺ࡢ㟁Ẽⓗ᳨ฟ㸪➨ 67 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍㸪ୖᬛ኱Ꮫ㸪2019 ᖺ 3 ᭶ 12 ᪥㹼15 ᪥.
࣭ Hiroyuki Matsuda, Satoru Suzuki, Takahiro Ishikawa, Teruaki Konishi, Tsuyoshi Hamano,
Yutaka Ohno, Toshio Hirao, Satoshi Ishii㸪Electrical detection of X-ray by coplanar CNT
thin-film electrodes on PEN substrate㸪➨ 58 ᅇࣇ࣮࣭ࣛࣞࣥࢼࣀࢳ࣮ࣗࣈ࣭ࣇ࣮ࣛࣞࣥ
⥲ྜࢩ࣏ࣥࢪ࣒࢘㸪ᮾி኱Ꮫ㸪2019 ᖺ 12 ᭶ 10 ᪥㹼15 ᪥.

148ู⣬ᵝᘧ㸰㸫㸰

పᾘ㈝㟁ຊேᕤࢩࢼࣉࢫ⣲Ꮚ㛤Ⓨࢆ┠ᣦࡋࡓ㓟໬≀࣓ࣔࣜࢫࢱᮦᩱ
ࡢཎᏊ࣭㟁Ꮚᵓ㐀ゎᯒ
Atomic and electronic structure analysis of oxide based memristive materials for low
power consumption artificial synaptic devices
⸨ᖹ ဴஓ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭෸ᩍᤵ㓇஭ ᮁ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭ᩍᤵᯘ ౡ௓࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭ຓᩍ஭㜰 ೺࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᇶ♏ᕤᏛ◊✲⛉࣭༤ኈ๓ᮇㄢ⛬஬༑ᔒ ಙ⾜࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵ㸯㸬◊✲┠ⓗ ㉸పᾘ㈝㟁ຊࡢ㠀ᚑ᮶ᆺグ᠈ㄽ⌮₇⟬⣲Ꮚ㸦࣓ࣔࣜࢫࢱᆺேᕤࢩࢼࣉࢫ㸧࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀࡿ㔠ᒓ㓟໬≀⣔ࡢ᢬ᢠኚ໬ᮦᩱ࡟ࡘ࠸࡚ࠊ᢬ᢠኚ໬⌧㇟ࡢཎᏊࣞ࣋ࣝ⣲㐣⛬ࢆ⌮ゎࡋࠊ㧗ᶵ⬟࣓ࣔࣜࢫࢱ⣲Ꮚࡢタィ࡜㛤Ⓨࢆ⾜࠺ࡇ࡜ࢆ┠ⓗ࡜ࡍࡿࠋ᢬ᢠኚ໬ࡢ㉳※࡜⪃࠼ࡽࢀ࡚࠸ࡿ㟁⏺ㄏ㉳ࡢᒁᡤ㓟໬࣭㑏ඖ࡟ࡼࡿཎᏊᵓ㐀࣭㟁Ꮚ≧ែኚ໬ࢆ㧗ศゎ⬟㟁Ꮚ㢧ᚤ㙾ほᐹ࡟ࡼࡾゎᯒࡋࠊᮦᩱ࣭⣲Ꮚస〇ࣉࣟࢭࢫࠊ㟁ᅽ༳ຍᒚṔࠊ࠾ࡼࡧ㟁Ẽ≉ᛶ࡜ࡢ┦㛵ࢆ᫂ࡽ࠿࡟ࡍࡿࠋᑐ㇟࡜ࡋ࡚㑏ඖ TiO 2 ༢⤖ᬗࢆ⏝࠸ࡓ 4 ➃Ꮚ࣓ࣔࣜࢫࢱ⣲Ꮚ࡟ࣇ࢛࣮࢝ࢫࡋࠊᵓ㐀-≀ᛶ┦㛵ࡢཎᏊࣞ࣋ࣝ▱ぢ࡟❧⬮ࡋࡓ⣲Ꮚタィᣦ㔪ࢆᚓࡿ࡜࡜ࡶ࡟⤖ᬗ୰ࢻ࣮ࣃࣥࢺ㸦㓟⣲✵Ꮝ㸧ศᕸࡢືⓗ⢭ᐦไᚚ࡟ࡶ࡜࡙࠸ࡓపᾘ㈝㟁ຊ࣭㧗ᶵ⬟࣓ࣔࣜࢫࢱ⣲Ꮚࢆ㛤Ⓨࡍࡿࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ๓ᖺᗘ࡟ᘬࡁ⥆ࡁࠊ㑏ඖ TiO 2 ༢⤖ᬗࢆᇶᮦ࡜ࡋ࡚⏝࠸ࡓᖹ㠃ᆺ 4 ➃Ꮚ⣲Ꮚࡢస〇࡜㟁Ẽ≉ᛶホ౯ࠊ࠾ࡼࡧ㧗ศゎ⬟㟁Ꮚ㢧ᚤ㙾ほᐹ࡟ࡼࡿᚤ⣽ᵓ㐀࣭㟁Ꮚ≧ែࡢゎᯒࢆ⾜ࡗࡓࠋࡇࢀࡲ࡛ࡢ⤖ᬗᵓ㐀࠾ࡼࡧ㟁Ꮚ≧ែゎᯒࡢ⤖ᯝ࠿ࡽࠊࣝࢳࣝᆺ TiO 2 ࡢ(001)㠃ࢆ⏝࠸ࡓ⣲Ꮚ࡟࠾࠸࡚ࠊ㟁ᅽ༳ຍ࡟ࡼࡾ⤖ᬗᵓ㐀ኚ໬ࢆకࢃ࡞࠸ Ti ౯㟁Ꮚ≧ែࡢኚ໬ࡀㄏ
㉳ࡉࢀࠊⰋዲ࡞⧞ࡾ㏉ࡋ᢬ᢠኚ໬≉ᛶࡀᚓࡽࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡟࡞ࡗ࡚࠸ࡿࠋᮏ◊✲࡛ࡣᖹ㠃ᆺ⣲Ꮚࡢᙧᡂ㠃࡜ࡋ࡚ࣝࢳࣝᆺ TiO 2 ࡢ(001)ࢆ㑅ᢥࡋࠊ4 ➃Ꮚࢹࣂ࢖ࢫࡢస〇࡜㟁Ẽ≉ᛶ࣭ᚤ⣽ᵓ㐀ࡢホ౯ࢆ⾜࠸ࠊ᢬ᢠኚ໬ᶵᵓࢆゎᯒࡋࡓࠋࡉࡽ࡟ࠊ」ᩘ➃Ꮚ࡬ࡢᵝࠎ࡞㟁ᅽ༳ຍࣃࢱ࣮ࣥ࡟ࡶ࡜࡙ࡃከᵝ࡞ࢩࢼࣉࢫ≉ᛶᐇ⌧ࡢྍ⬟ᛶࢆᶍ⣴ࡋࡓࠋ ࣝࢳࣝᆺ TiO 2 (001)༢⤖ᬗᇶᯈ࡟ᑐࡋࠊ┿✵ᗘ 10-6 Paࠊ700ǀCࠊ6 ᫬㛫ࡢ᮲௳࡛⇕㑏ඖฎ⌮ࢆ᪋ࡋࠊ⤖ᬗෆ࡟㓟⣲✵Ꮝࢆ⏕ᡂࡋࡓࠋࡑࡢᚋࠊᇶᯈ⾲㠃࡟ࢫࣃࢵࢱࣜࣥࢢ࡟ࡼࡾ
Pt 㟁ᴟࢆᙧᡂࡋࠊᖹ㠃ᆺ 4 ➃Ꮚ⣲Ꮚࢆస〇ࡋࡓ㸦ᅗ 1㸧ࠋᮏ⣲Ꮚ࡟࠾࠸࡚┿✵㞺ᅖẼ୰࡛㟁ᴟ 2 ࡜ 4 ࡟ 6 V ࡢ㟁ᅽ㸦㟁ᴟ 1 ࡜ 3 ࡣ GND㸧ࢆ 50 ⛊㛫༳ຍࡍࡿࡇ࡜࡟ࡼࡾࠊ㟁ᴟ
1-3 㛫ࡢ᢬ᢠ್ࡣῶᑡࡋࠊගᏛ㢧ᚤ㙾ほᐹࡼࡾ㟁ᴟ 1-3 㛫࡟╔Ⰽ㡿ᇦ㸦㓟⣲✵Ꮝ⃰ᗘࡀ㧗࠸㡿ᇦ㸧ࡀᙧᡂࡉࢀࡿࡢࡀ☜ㄆࡉࢀࡓ㸦ᅗ 1(b)㸧
ࠋࡇࡢ╔Ⰽ㡿ᇦࡢቃ⏺ࡣࣈ࣮ࣟࢻ࡛

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࠶ࡾࠊ㟁ᴟ 2, 4 ࡬ࡢṇ㈇㟁ᅽࡢ༳ຍ࡟ࡼࡾከᩘᅇࡢ᢬ᢠኚ໬ࢆᏳᐃⓗ࡟⧞ࡾ㏉ࡍࡇ࡜ࡀ࡛ࡁࡿࠋᮏ⣲Ꮚࡢ㟁ᅽ༳ຍᚋ࡟ᙧᡂࡉࢀࡓ╔Ⰽ㡿ᇦࠊ㠀╔Ⰽ㡿ᇦࠊ࠾ࡼࡧ㟁ᅽ༳ຍ๓㸦As-reduced㸧ࡢ㟁ᴟ㛫ྛ㡿ᇦ࡟ࡘ࠸࡚ࠊ㞟᮰࢖࢜ࣥࣅ࣮࣒࡟ࡼࡿ࣐࢖ࢡࣟࢧࣥࣉࣜࣥ
ࢢἲࢆ⏝࠸࡚ TEM ほᐹ⏝ⷧ∦໬ヨᩱࢆస〇ࡋࡓࠋ཰ᕪ⿵ṇ㟁Ꮚ㢧ᚤ㙾㸦JEM-ARM200,
Cold-FEG㸧ࢆ⏝࠸ࡓ S/TEM ീほᐹ࠾ࡼࡧ STEM-EELSᐃ࡟ࡼࡾࠊ᢬ᢠኚ໬㡿ᇦࡢ⤖ᬗᵓ㐀࡜ Ti ཎᏊ౯≧ែࡢゎᯒࢆ⾜ࡗࡓࠋᅗ 1(c-g)࡟ࠊࢹࣂ࢖ࢫྛ㡿ᇦ࡟࠾ࡅࡿ TEM ീ࠾ࡼࡧ EELS ࡢᐃ⤖ᯝࢆ♧ࡍࠋ࠸ࡎࢀࡢ㡿ᇦ࡟࠾࠸࡚ࡶ TEM ീ࠾ࡼࡧ㟁Ꮚᅇᢡᅗᙧ

࠿ࡽ⤖ᬗᵓ㐀ࡢ᫂☜࡞ኚ໬ࡣㄆࡵࡽࢀ࡞࠿ࡗࡓࠋ୍᪉ࠊEELS ࡢ Ti-L 3 ➃࢚ࢿࣝࢠ࣮ศ⿣
ᖜࡢኚ໬࠿ࡽࠊ
㟁ᅽ༳ຍ๓࡜ẚ㍑ࡋ࡚㟁ᅽ༳ຍᚋࡢ╔Ⰽ㡿ᇦ࡛ࡣ Ti ࡢ㑏ඖᗘࡀቑ኱ࡋࠊ
㠀╔Ⰽ㡿ᇦ࡛ࡣ㑏ඖᗘࡀῶᑡࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋㄞྲྀࡾ➃Ꮚ㛫࡛ࡢ㑏ඖ㡿
ᇦࡢ 2 ḟඖⓗศᕸࡢኚ໬ࡀࠊ᢬ᢠኚ໬ࡢᶵᵓ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋᮏ⣲Ꮚ࡟࠾࠸࡚➃Ꮚ
2, 4 ࢆࢤ࣮ࢺ㟁ᴟ࡜ࡳ࡞ࡋࠊㄞྲྀࡾ➃Ꮚ㛫ࡢ㓟⣲✵Ꮝ㞟✚ᙉᗘࢆኚ໬ࡉࡏࡿࡼ࠺࡞㟁ᅽ༳ຍࣉࣟࢺࢥࣝࢆ⏝࠸ࡿࡇ࡜࡟ࡼࡾࠊᏛ⩦ຠ⋡㸦᢬ᢠኚ໬ຠ⋡㸧ࢆኚㄪࡋࡓከᵝ࡞ࢩࢼ
ࣉࢫᵝᛂ⟅㸦࣊ࢸࣟࢩࢼࣉࢫྍረᛶ㸧ࢆ༢୍࣓ࣔࣜࢫࢱ⣲Ꮚ࡛ᚓࡿࡇ࡜࡟ᡂຌࡋࡓࠋࡉ
ࡽ࡟ࠊ㟁ᅽ༳ຍୗ࡛ࡢᚤ⣽⤌⧊ኚ໬ࢆࡑࡢሙ TEM ほᐹࡍࡿࡓࡵࡢ TiO 2 ᚤ⣽࣓ࣔࣜࢫࢱ
⣲Ꮚࡢタィ࡜ヨసࢆ⾜࠸ࠊணഛⓗ࡞ほᐹࢆ⾜ࡗࡓࠋFig. 1. (a, b) Optical micrographs of TiO2 four terminal devices. (a) before and (b) after the voltage application.
(c-e) TEM images and ED patterns of different regions in the device (c) As-reduced, (d) Colorless, and (e)Colored regions. (f, g) EELS analysis of resistive switching regions of the device.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
࣭ Z. Nagata, T. Shimizu, T. Isaka, T. Tohei*, N. Ikarashi, A. Sakai*, Gate Tuning of Synaptic
Functions Based on Oxygen Vacancy Distribution Control in Four-Terminal TiO í[Memristive Devices, Scientific Reports, 9, 10013 (2019).
㸺ᅜ㝿఍㆟㸼
࣭ T. Isaka, T. Tohei, T. Shimizu, S. Takeuchi, N. Ikarashi and A. Sakai, Atomic and electronic
structure analysis of resistive switching regions in rutile TiO 2-x based four-terminal
memristive devices, ICMaSS2019, Nagoya, Japan, November 1-3, 2019.

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ู⣬ᵝᘧ㸰㸫㸰☢໬≉ᛶࢆⓎ⌧ࡍࡿ㑄⛣㔠ᒓࢲ࢖࢝ࣝࢥࢤࢼ࢖ࢻ⭷ࡢḞ㝗࣭⢏⏺࡟㛵ࡍࡿ᩿㠃/ᖹ㠃 TEM ゎᯒ
Project Title: Plane/cross-sectional TEM analysis on defects and grain boundaries oftransition-metal di-chalcogenide film having magnetization characteristics◊✲௦⾲⪅㸸ⱝᯘ ᩚ ᮾிᕤᴗ኱Ꮫ ᕤᏛ㝔 㟁Ẽ㟁Ꮚ⣔ ᩍᤵ◊✲ศᢸ⪅㸸᐀⏣ ఀ⌮ஓ ᮾிᕤᴗ኱ᏛᕤᏛ㝔 㟁Ẽ㟁Ꮚ⣔ ຓᩍⓑ಴ Ꮥ඾ ྠ 㟁Ẽ㟁Ꮚࢥ࣮ࢫ M1◊✲ᡤᢸᙜᩍဨ㸸஬༑ᔒಙ⾜ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊ ᩍᤵ㸯㸬◊✲┠ⓗḟୡ௦ࡢ㉸పᾘ㈝㟁ຊ㧗ᛶ⬟ࢺࣛࣥࢪࢫࢱࡢᐇ⌧࡟ྥࡅ࡚ࠊ஧◲໬ࣔࣜࣈࢹࣥ㸦MoS 2 㸧࡞࡝ཎᏊᒙࣞ࣋ࣝ
㑄⛣㔠ᒓࢲ࢖࢝ࣝࢥࢤࢼ࢖ࢻ(TMDC)⭷ࡢ஧ḟඖ༙ᑟయᮦᩱࡢ◊✲ࡀ㐍ࡵࡽࢀ࡚࠸ࡿࠋMoS 2 ⤖ᬗࡣࠊMo ཎ
Ꮚᒙࢆ 2 ᯛࡢ S ཎᏊᒙࡀᣳࡴ MoS2 ᒙࡀࠊ࡛✚ᒙࡋࡓ⤖ᬗᵓ㐀ࢆ᭷ࡋ࡚࠸ࡿࠋMoS2 ᒙ㛫࡟ാࡃຊࡣࠊࣇ࢓ࣥࢹࣝ
࣮࣡ࣝࢫຊ࡛࠶ࡿࠋࡇࡢᮦᩱࢆ⏝࠸ࡓࢺࣛࣥࢪࢫࢱ≉ᛶࡢྥୖࡢࡓࡵ࡟ࡣࠊཎᏊ࡛ࣞ࣋ࣝࡢ⭷ᵓ㐀ไᚚ࡜ࢹࣂ࢖ࢫస〇ᢏ⾡ࡢ☜❧ࡀᚲせ࡛࠶ࡾࠊTEM ➼ࢆ⏝࠸ࡓཎᏊࢫࢣ࣮࡛ࣝࡢᮦᩱ≀ᛶ࣭ᵓ㐀ゎᯒ࡟ࡼࡾࠊୖグࢹࣂ࢖ࢫ㛤Ⓨࢆຍ
㏿ࡍࡿࡇ࡜ࢆ┠ᶆ࡜ࡍࡿࠋᮏᖺᗘࡣࠊMoS 2 ከ⤖ᬗⷧ⭷ࡢᵓ㐀ゎᯒ㸦✚ᒙᵓ㐀ࠊ⤖ᬗ⢏ᚄᐃࠊ⤖ᬗḞ㝗➼㸧ࡢゎᯒࢆ⾜࡞ࡗࡓࠋᮏሗ࿌࡛ࡣࠊ≉࡟ࠊࢫࣃࢵࢱࣜࣥࢢᡂ⭷ࡋࡓ MoS 2ⷧ⭷ࡢ⤖ᬗ⢏ࡢ✚ᒙᵓ㐀࡟ࡘ࠸࡚ሗ࿌ࡍࡿࠋࣂࣝࢡࡢ MoS2 ࡟࠾࠸࡚ࡣࠊMoS2 ཎᏊᒙࡢ✚ᒙࡢࢱ࢖ࣉ࡟ࡼࡗ࡚ 2H ᆺࡢ MoS2 ࡜ 3R ᆺࡢ MoS2 ࡀᏑᅾࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏᐇ㦂࡛ࡣࠊࢫࣃࢵࢱࣜࣥࢢ
ᡂ⭷ࡋࡓ 4 ᒙ MoS 2 ⷧ⭷ࡢᖹ㠃ほᐹࢆ⾜࠸ࠊࢩ࣑࣮ࣗࣞࢩࣙࣥ
ീ࡜ẚ㍑ࡍࡿࡇ࡜࡛✚ᒙᵓ㐀ࡢゎᯒࢆ⾜ࡗࡓࠋ
 ᅗ 1 ࢫࣃࢵࢱᡂ⭷ࡋࡓ 4 ᒙࡢ
MoS2 ཎᏊᒙࡀሁ✚ࡋࡓⷧ⭷⤖ᬗࡢᖹ㠃 STEM ീ࡜ࠊ2H ᆺ࡜
3R ᆺࡢ✚ᒙᵓ㐀ࡀΰᅾࡋࡓ✚ᒙᵓ㐀ࢆᣢࡘࣔࢹࣝᵓ㐀ࡢ
STEM ࢩ࣑࣮ࣗࣞࢩࣙࣥീࢆ♧151ࡍࠋ ᅗ୰ࡢ࢜ࣞࣥࢪⰍࡢࡦࡋᙧࡣ MoS2 ࡢࣘࢽࢵࢺࢭࣝࢆ♧ࡍ 2H-MoS2 ࡜ 3R-MoS2 ࡢ
HAADF-STEM ࢩ࣑࣮ࣗࣞࢩ࡛ࣙࣥࡣᮏヨᩱࡢ STEM ീ࡛ࡣࣘࢽࢵࢺࢭࣝࡢ୰࡟ཎᏊࡢ㍤
Ⅼࡀࡍࡿࡓࡵࠊࡇࢀࡽࡢᵓ㐀ࢆ࡜ࡽ࡞࠸ࠋ2H ࡜ 3R ࡀΰࡊࡗࡓᵓ㐀ࢆ⪃࠼ࡓሙྜࠊࡑࡢ࠺
ࡕࡢ࠸ࡃࡘ࠿ࡢ✚ᒙᵓ㐀࡛ STEM ീࢆ෌⌧ࡍࡿ HAADF-STEM ࢩ࣑࣮ࣗࣞࢩࣙࣥࡀᏑᅾࡋ
ࡓࠋࡇࡢࡼ࠺࡞ᵓ㐀ࢆࡇࡇ࡛ mix ࡜࿧ࡪࡇ࡜࡟ࡍࡿࠋࡼࡾヲࡋ࠸ゎᯒࡢࡓࡵࠊほᐹࡉࢀࡓ STEM ീ࡟ࣀ࢖ࢬ㝖ཤࡢࡓࡵࡢ࢞࢘ࢩ࢔ࣥࣇ࢕ࣝࢱ
ࢆ㐺ᛂࡋࠊSTEM ࢩ࣑࣮ࣗࣞࢩࣙࣥ࡜ᙉᗘศᕸࡢẚ㍑ࢆ⾜ࡗࡓࠋᅗ 2 ࡟඾ᆺⓗ࡞ 3 ࣃࢱ࣮
ࣥࡢ STEM ീ࡜ࡑࢀࡒࢀ࡟ᑐᛂࡋࡓ STEM ࢩ࣑࣮ࣗࣞࢩࣙࣥീࠊࡑࢀࡒࢀࡢᙉᗘศᕸࡢẚ㍑ࢆ♧ࡍࠋࣃࢱ࣮ࣥ 1~3 ࡢ STEM ࢩ࣑࣮ࣗࣞࢩࣙࣥീࡣࡑࢀࡒࢀ 2H ࡜ 3R ࢆ⤌ࡳྜࢃࡏࡓ 4 ᒙ MoS2 ࡛෌⌧࡛ࡁࡿࠋᅗ୰ࡢ࢜ࣞࣥࢪⰍࡢⅬ⥺࡟ἢࡗ࡚ᙉᗘศᕸࢆ ᐃࡋࡓࠋ㟷Ⰽࡢ⥺ࡀほᐹࡉࢀࡓ STEM ീࡢᙉᗘศᕸࠊ㉥Ⰽࡢ⥺ࡀࢩ࣑࣮ࣗࣞࢩࣙࣥീࡢᙉᗘศᕸࢆ♧ࡍࠋ࡝ࡢᙉᗘศᕸࡶࡼ࠸୍⮴ࢆぢࡏࡓࠋࡋ࠿ࡋࠊಖㆤ⭷ࡢ C ࡸᇶᯈࡢ SiO2 ࡢࢥࣥࢺࣛࢫࢺ࡟
ࡼࡾࣀ࢖ࢬࡀⓎ⏕ࡋࠊ᏶඲࡟ࡣ୍⮴ࡋ࡚࠸࡞࠸ࠋ
ᙉᗘศᕸࡢẚ㍑ࡼࡾࠊྠࡌ
ⷧ⭷࡟」ᩘࡢ✚ᒙᵓ㐀ࡀᏑᅾࡍࡿࡇ࡜ࠊࡘࡲࡾ⤖ᬗ⢏ࡈ࡜࡟␗࡞ࡗࡓ✚ᒙᵓ㐀ࢆᣢࡘࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࢀࡣࢫ
ࣃࢵࢱࣜࣥࢢᡂ⭷ࡋࡓ MoS 2
ⷧ⭷ࡀ 2H ࡸ 3R ࡞࡝ࡢỴࡲࡗࡓ✚ᒙᵓ㐀ࢆ࡜ࡿࡢ࡛ࡣ
࡞ࡃࠊ୍ࡘୗࡢᵓ㐀࡟ᑐࡋ࡚ࣛࣥࢲ࣒࡟✚ᒙࡉࢀࡿࡇ࡜
࡜▩┪ࡋ࡞࠸⤖ᯝ࡜࡞ࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸦SW ࢦࢩࢵࢡయ㸧㸺ཎⴭㄽᩥ㸼
࡞ࡋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ R. Otsuki et al., International Conference on Materials and Systems for
SustainabilityࠊNagoya 2019 (Nagoya, Proc. A3-P-38)㸺⏘ᴗ㈈⏘ᶒ㸼࡞ࡋ㸦ὀ㸧ู⣬ᵝᘧ㸰㸫㸯ࡣ㸿㸲ࢧ࢖ࢬ㸯㡫࡟ࠊู⣬ᵝᘧ㸰㸫㸰ࡣᅗ⾲➼ࢆྵࡵ࡚㸿㸲ࢧ࢖ࢬ㸰㡫࡟࡞ࡿࡼ࠺࡟ࡋ࡚ࡃࡔࡉ࠸ࠋ

152ู⣬ᵝᘧ㸰㸫㸰ගບ㉳ㄏ㟁యࢼࣀᵓ㐀ࡢ๰ࡿ☢Ẽቑᙉሙ࡛ࡢ࢟ࣛࣝ᰾ᙧᡂ
Chiral Nucleation in Optical Magnetic Field Enhancedby Mie Resonance of Dielectric Nanostructure᪂ᐙᐶṇ࣭ᮾ໭኱Ꮫ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭ຓᩍ⏣ᕝ⨾✑࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ௜ᒓᮍ᮶࢚ࣞࢡࢺࣟࢽࢡࢫ
㞟✚ࢭࣥࢱ࣮࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ࢟ࣛࣝ࡞⤖ᬗᵓ㐀୰࡛ࡣࠊࢫࣆࣥ㌶㐨┦஫స⏝࡟ࡼࡗ࡚㟁Ꮚࢫࣆࣥࡢ⦰㏥ࡀゎࡅࡿࡓࡵࠊࢫࣆࣥࡢไᚚࡀྍ⬟࡜࡞ࡿࠋᚑࡗ࡚ࠊ࢟ࣛࣝ⤖ᬗࡢไᚚࡣࢫࣆࣥࢺࣟࢽࢡࢫࡢほⅬ࠿ࡽ㔜せ࡛࠶ࡾࠊᮍ᮶ࡢప࢚ࢿࣝࢠ࣮ᾘ㈝♫఍ࡢᇶ┙࡜࡞ࡿ⤖ᬗᮦᩱࡢไᚚ࡟⧅ࡀࡿࠋ
ࡋ࠿ࡋࠊ⤖ᬗ࢟ࣛࣜࢸ࢕ࢆእሙ࡟ࡼࡾ௵ព࡟ไᚚࡍࡿᢏ⾡ࡣ㛤Ⓨࡉࢀ࡚࠸࡞࠸ࠋ࢟ࣛࣜ
ࢸ࢕ࢆ♧ࡍእሙ࡜ࡋ࡚ࡣ㟁☢ሙࡀᣲࡆࡽࢀࠊྂࡃ࠿ࡽࠊ⤯ᑐ୙ᩧྜᡂࢆᕥྑ෇೫ග↷ᑕ࡟ࡼࡾ㥑ືࡍࡿࡇ࡜࡛㙾ീయ␗ᛶ㐣๫ࢆㄏ㉳ࡍࡿ㸦࢟ࣛࣜࢸ࢕ࢆไᚚࡍࡿ㸧ヨࡳࡀᡂࡉࢀ࡚ࡁࡓࡀࠊࡑࡢຠ⋡ࡣᴟࡵ࡚ప࠸ࡢࡀ⌧≧࡛࠶ࡿࠋࡑࡢཎᅉࡢ୍ࡘ࡜ࡋ࡚ࠊ㟁☢ሙࡢ☢ሙࡢຠᯝࡀᑠࡉ࠸ࡇ࡜ࡀᣲࡆࡽࢀࡿࠋග྾཰ࡢ኱ࡁࡉࢆᢸ࠺㟁Ꮚ㑄⛣☜⋡ࡣࠊ㟁Ẽ཮ᴟᏊ㑄⛣(E1)ࠊ☢Ẽ཮ᴟᏊ㑄⛣(M1)ࠊ㟁Ẽᅄ㔜ᴟᏊ㑄⛣☜⋡(E2)ࡢ࿴࡟ẚ౛ࡋࠊ୧㙾ീయ㛫࡛ࡢᕥྑ෇೫ගࡢග྾཰ᕪ࡛࠶ࡿ෇஧Ⰽᛶ㸦ᕥྑ㠀ᑐ⛠ᛶ㸧ࡢ኱ࡁࡉࡣ M1 ࡜ E2ࡢᐤ୚࡟ᙉࡃ౫ᏑࡍࡿࠋM1 ࡜ E2 㐣⛬ࡢᐤ୚ࡢ▸ᑠࡉᨾࠊ෇஧Ⰽᛶࡣ୍⯡ⓗ࡟ᚤᙅ࡛࠶ࡾࠊࡇࡢ▸ᑠࡉࡀຠ⋡ⓗ࡞㙾ീ␗ᛶ㐣๫⋡ㄏ㉳ࡢ࣎ࢺࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿࠋM1 ࡜
E2 㐣⛬ࡢቑᙉ࡟ࡣࠊ☢ሙࡢ኱ࡁࡉཬࡧ㟁ሙ໙㓄ࡢᛴᓧࡉࡀࡑࢀࡒࢀᚲせ࡛࠶ࡿࡇ࡜ࡀ
▱ࡽࢀ࡚࠸ࡿࠋㄏ㟁యࢼࣀᵓ㐀య࡬ࡢග↷ᑕ࡟ࡼࡾບ᣺ࡉࢀࡿ Mie ඹ᣺࡛ࡣࠊගᏛⓗ࡞☢Ẽඹ㬆ࡀࠊࡑࡢ㏆᥋ሙ࡟࠾࠸࡚ගᏛ㟁Ẽඹ㬆ࡢᙉᗘ࡜ྠ⛬ᗘࡢᙉᗘࡲ࡛ቑᙉࡉࢀࡿࡇ
࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋຍ࠼࡚ࠊ㏆᥋ሙࡢⓎ⏕࡟ࡼࡾࠊᛴᓧ࡞㟁ሙ໙㓄ࡀᙧᡂࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋࡇࢀࡽࡢ☢ሙ࣭㟁ሙ໙㓄ቑᙉࡢᐤ୚࡟ࡼࡾࠊM1 ࡜ E2 㐣⛬ࡢቑᙉࡀᮇᚅ
࡛ࡁࠊ࣎ࢺࣝࢿࢵࢡࢆඞ᭹࡛ࡁࡿྍ⬟ᛶࡀ࠶ࡿࠋ ࡑࡇ࡛ࠊᮏ◊✲࡛ࡣࠊග↷ᑕ࡟ࡼࡾ Mie ඹ᣺ࡀບ᣺ࡉࢀࡓㄏ㟁యࢼࣀᵓ㐀యୖ࡛ࠊ࢟
ࣛࣝ᰾ᙧᡂ࣭⤖ᬗ໬ࢆㄏ㉳ࡍࡿࡇ࡜࡛ࠊ⤖ᬗ࢟ࣛࣜࢸ࢕ไᚚࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࠊ➨୍ẁ㝵࡜ࡋ࡚ࠊㄏ㟁య࡜ࡋ࡚ࢩࣜࢥࣥ(Si)ࢆ౑⏝ࡋࡓ࢟ࣛࣝࢼࣀᵓ㐀యࡢసᡂࢆヨࡳࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ Ỉᬗᇶᯈୖ࡟┿ᛶỈ⣲໬࢔ࣔࣝࣇ࢓ࢫࢩࣜࢥࣥ(i-a-Si:H)ⷧ⭷(80 nm)ࣉࣛࢬ࣐ CVD ἲ࡟ࡼࡾᙧᡂࡋࠊࡑࡢᚋ⇕ฎ⌮ࢆ᪋ࡍࡇ࡜࡛⤖ᬗ Si ⷧ⭷ࢆᙧᡂࡋࡓࠋ㟁Ꮚ⥺㟢ග⿦⨨ࢆ⏝࠸࡚ࠊ୍㎶ 480 nm ࡢ༜ᆺᵓ㐀ࢆᵓᡂ༢఩࡜ࡋࡓ 96nm 㛫㝸ࡢࢼࣀ࿘ᮇᵓ㐀ࡢࣞࢪࢫࢺ⭷(ZEP520A)ࢆ Si ⷧ⭷ୖ࡟ᙧᡂࡋࡓࠋࣞࢪࢫࢺ⭷ୖ࡟ Cr ⷧ⭷(30 nm)ࢆࠊ㟁Ꮚ⥺⵨╔⿦⨨ࢆ⏝࠸࡚ᙧᡂࡋࠊࣞࢪࢫࢺࢆ๤㞳ࡍࡿࡇ࡜࡛ Cr ࡢࣁ࣮ࢻ࣐ࢫࢡࢆᙧᡂࡋࡓࠋࡑࡢ

153

ᚋࠊᇶᯈࢆ Deep-Reactive Ion Etching (Deep-RIE)ࡢ࣎ࢵࢩࣗἲ࡟ࡼࡾ࢚ࢵࢳࣥࢢࡋࠊCr
ࣁ࣮ࢻ࣐ࢫࢡࢆ㝖ཤࡍࡿࡇ࡜࡛ Si ࢟ࣛࣝࢼࣀᵓ㐀యࢆసᡂࡋࡓ(Fig. 㸯A)ࠋసᡂࡋࡓ Si
ࢼࣀᵓ㐀యࡢ⾲㠃ᙧ≧ࢆཎᏊ㛫ຊ㢧ᚤ㙾(AFM)࡟ࡼࡾほᐹࡋࠊᵓ㐀యࡢ᏶ᡂᗘࢆホ౯ࡋࡓࠋFig. 㸯B ࡜ C ࡟ࠊ⌧ീᚋࡢࣞࢪࢫࢺ⭷ࡢ㟁Ꮚ㢧ᚤ㙾ീ࡜᭱⤊ⓗ࡟ᚓࡽࢀࡓ Si ࢼࣀᵓ㐀యࡢ AFM ീࢆࡑࢀࡒࢀ
♧ࡍࠋసᡂࡋࡓసᡂࡋ
ࡓ Si ࢼࣀᵓ㐀యᇶᯈࡢ෗┿(ᕥ)࡜ AFM ീ(ྑ)ࢆ♧ࡍࠋᚓࡽࢀࡓ Si ࢼࣀᵓ㐀యࡣࣞࢪࢫࢺࡢ
༜ᆺᵓ㐀ࢆ཯ᫎࡋ࡚࠾
ࡾࠊSi ࢟ࣛࣝࢼࣀᵓ㐀యࡢసᡂ࡟ᡂຌࡋࡓࡇ
࡜ࡀศ࠿ࡿࠋ௒ᚋࠊᚓ
ࡽࢀࡓ Si ࢼࣀᵓ㐀యࢆ

Fig. 1 A Fabrication process of Si periodic nanostructure. B Scanning electron
microscopic image of resist layer after development. C Atomic force microscopic
image of the resulting Si nanostructure.

⏝࠸࡚ࠊỈ⁐ᾮ࠿ࡽࡢ࢟ࣛࣝ⤖ᬗ໬ࢆㄏ㉳ࡍࡿࡇ࡜࡟ࡼࡾᚓࡽࢀࡿ࢟ࣛࣝ⤖ᬗࡢ㙾ീ␗ᛶ㐣๫⋡ࢆホ౯ࡋࠊ⤖ᬗ࢟ࣛࣜࢸ࢕ไᚚࡢྍ⬟ᛶࢆㄪᰝࡍࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
ヱᙜ࡞ࡋࠋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ヱᙜ࡞ࡋࠋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪≧ἣࠊྲྀᚓ≧ἣ
ヱᙜ࡞ࡋࠋ

154

ู⣬ᵝᘧ㸰㸫㸰㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁య 5)H2㸦5㸸ᕼᅵ㢮ඖ⣲㸧࡟࠾ࡅࡿᒁᡤᵓ㐀
/RFDOVWUXFWXUHLQFKDUJHRUGHULQJLQGXFHGIHUURHOHFWULF5)H2 5UDUHHDUWKHOHPHQWV ᇼ㒊 㝧୍࣭஑ᕞᕤᴗ኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲㝔࣭෸ᩍᤵ㛗ᑿ ඲ᐶ࣭ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ ᙉㄏ㟁య࡟࠾ࡅࡿㄏ㟁ศᴟࡣࠊ୍⯡ⓗ࡟ࡣṇ㈇࢖࢜ࣥኚ఩ࡢ⤖ᯝ࡜ࡋ࡚ฟ⌧ࡍࡿࠋࡋ࠿ࡋ࡞ࡀࡽ᭱㏆ࡢ◊✲࠿ࡽࠊ/X)H2 ➼ࡢ஧㔜ᒙࣇ࢙ࣛ࢖ࢺ໬ྜ≀࡟࠾࠸࡚ࠊ㟁Ⲵ⛛ᗎ㓄ิ࡟㉳ᅉࡍࡿ㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁ᛶࡀぢฟࡉࢀ࡚࠸ࡿ>@ࠋࡇࡢ㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁ᛶࡣ࢖࢜ࣥኚ఩ࡢᏑᅾࢆᚲࡎࡋࡶᚲせ࡜ࡋ࡞࠸ࡓࡵࠊᴟᑠ㟁ሙ࡛ࡢ㉸㧗㏿ศᴟ཯㌿ࡀྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀ࡚࠾ࡾࠊ㠉᪂ⓗ┬࢚ࢿࣝࢠ࣮ᐇ⌧࡬ࡢᐤ୚ࡀᮇᚅࡉࢀࡿࡇ࡜࠿ࡽ⢭ຊⓗ࡞◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿࠋ୍᪉ࠊ஧㔜ᒙࣇ࢙ࣛ࢖ࢺ 5)H2 ࡢస〇ࡢࡓࡵ࡟ࡣࠊ㓟⣲ศᅽ 3 2 ࡀ  a  DWP ࡜࡞ࡿࡼ࠺࡞ࠊ㠀ᖖ࡟⢭ᐦ࡞㓟⣲ศᅽไᚚࡀᚲせ࡜࡞ࡿࠋࡇࡢᵝ࡞㓟⣲ศᅽࡢ⢭ᐦไᚚࡢࡓࡵࠊࡇࢀࡲ࡛ + &2 ࡸ &2&2 ➼ࡢΰྜ࢞ࢫࡀ⏝࠸ࡽࢀ࡚ࡁࡓࠋࡋ࠿ࡋ࡞ࡀࡽẘᛶࡸ⇿ⓎᛶࡢほⅬ࠿ࡽࠊ⣧ + ࡸ⣧ &2 ࡣᴟࡵ࡚ὀព῝࠸ྲྀࡾᢅ࠸ࡀᚲせ࡜࡞ࡿࠋࡑࡇ࡛ᮏ◊✲࡛ࡣࠊ஧㔜ᒙࣇ࢙ࣛ࢖ࢺࡢ୍✀࡛࠶ࡿ <)H2 ࢆྲྀࡾୖࡆࠊ㧗ᅽ࢞ࢫಖᏳἲ࡟ࡼࡿ≉ᐃタഛࢆᚲせ࡜ࡋ࡞࠸ᕤᴗつ᱁ࡢ $U+ ࢞ࢫ࠾ࡼࡧ &2 ࢞ࢫࢆ⏝࠸ࠊ୧⪅ࡢΰྜẚࢆ᭱㐺໬ࡍࡿࡇ࡜࡟ࡼࡾᮏ⣔࡟࠾ࡅࡿヨᩱస〇ࢆヨࡳࡓࠋࡲࡓᚓࡽࢀࡓヨᩱ࡟ࡘ࠸࡚㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾 7(0  ࢆ⏝࠸ࡓ㟁Ꮚᅇᢡἲ࡟ࡼࡿほᐹࢆ⾜࠸ࠊ㓟⣲Ḟ㝗࡟㉳ᅉࡍࡿᒁᡤᵓ㐀࡟ࡘ࠸࡚ㄪ࡭ࡓࠋ
㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲࡟࠾ࡅࡿヨᩱస〇ࡣࠊᅛ┦཯ᛂἲ࡟ࡼࡾ⾜ࡗࡓࠋཎᩱ⢊࡜ࡋ࡚ <2 ࠾ࡼࡧ)H2 ࢆ⏝࠸ࠊΥ ✵Ẽ୰࡛  ᗘ௬↝ᡂࡋࡓᚋࠊ$U+ ࢞ࢫ&2 ࢞ࢫΰྜẚࢆ⣔⤫ⓗ࡟ኚ໬ࡉࡏࡓΰྜ࢞ࢫ୰࡟࡚ࠊΥ a ᫬㛫ᮏ↝ᡂࡋࡓࠋ୍㐃ࡢヨᩱࡼࡾᚓࡽ
ࢀࡓࠊ⢊ᮎ ; ⥺ᅇᢡ᭤⥺ࢆᅗ  ࡟♧ࡍࠋ$U+ ࢞ࢫ&2 ࢞ࢫẚ  ヨᩱ࠿ࡽᚓࡽࢀࡓᅇᢡ᭤⥺ࡣࠊ<2㸦‫ڸ‬༳㸧࠾ࡼࡧ )H㸦‫ۂ‬༳㸧࡟ࡼࡿࡶࡢ࡜ࡋ࡚▩┪࡞ࡃᣦᩘ௜
ࡅࡍࡿࡇ࡜ࡀฟ᮶ࡿࠋ୍᪉ࠊΰྜẚࡀ ࠊࠊ࠾ࡼࡧ  ヨᩱ࡟࠾ࡅࡿᅇ
ᢡ᭤⥺୰ࡢ୺せ࡞ࣆ࣮ࢡࡣࠊ┠ⓗ┦࡛࠶ࡿ <)H2 ┦࡟ࡼࡿࡶࡢ࡛࠶ࡾࠊᚤ㔞ࡢ <)H2
࡮ࣟࣈࢫ࢝࢖ࢺ┦㸦‫ە‬༳㸧ࢆྵࡴࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡇࡢ <)H2 ┦ࡢ๭ྜࡣ &2࢞ࢫࡢ๭ྜࡀ኱ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚ቑຍࡋࠊ ヨᩱࡣ࡯ࡰ <)H2 ༢┦࡛࠶ࡿࡇ࡜ࡀ
ぢ࠸ࡔࡉࢀࡓࠋࡍ࡞ࢃࡕࠊ㓟⣲ศᅽࡢᚤ㔞࡞ቑຍ࡟క࠸ࠊ㕲࢖࢜ࣥࡢ౯ᩘࡀࡼࡾ኱ࡁ࠸
<)H2 ┦ࡢฟ⌧࠾ࡼࡧᏳᐃ໬ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡲࡓ $U+ ࢞ࢫ㸭&2 ࢞ࢫࡢΰྜẚࡀ᭦࡟኱ࡁ࠸ሙྜ࡟ࡣࠊ࣮࢞ࢿࢵࢺᵓ㐀ࢆ᭷ࡍࡿ <)H2 ┦ࡀᏳᐃ࡜࡞ࡗࡓࠋࡍ࡞ࢃࡕࠊ
$U+ ࢞ࢫ㸭&2 ࢞ࢫࡢΰྜẚࢆ  ௜㏆࡜ࡍࡿࡇ࡜࡟ࡼࡾࠊ┠ⓗ≀㉁࡛࠶ࡿ

155<)H2 ࡀᚓࡽࢀࡿ࡜⪃࠼ࡽࢀࡿࠋ
 స〇ࡉࢀࡓヨᩱ࡟࠾࠸࡚ࠊ7(0 ࢆ⏝࠸ࡓ㟁Ꮚᅇᢡᅗᙧࡢほᐹࢆ⾜ࡗࡓࠋᚓࡽࢀࡓᅇ
ᢡᅗᙧ୰࡟ࡣࠊ⳻㠃యᵓ㐀࡟ࡼࡿᇶᮏ᱁Ꮚ཯ᑕ࡟ຍ࠼ࠊ ࢱ࢖ࣉ఩⨨ࢆ㏻ࡾ F ㍈
࡟ᖹ⾜࡞ࢪࢢࢨࢢ≧ᩓₔᩓ஘ࡀほᐹࡉࢀࡿࠋᵝࠎ࡞᪉ྥ࠿ࡽ㟁Ꮚᅇᢡᅗᙧࢆ᧜ᙳࡋࡓ⤖ᯝࠊᮏ⣔࡟࠾ࡅࡿᩓₔᩓ஘ࡣࠊࣁࢽ࣒࢝᱁Ꮚᙧ≧࡜Ỉᖹ᪉ྥࡢࣟࢵࢻ≧ᙧ≧࡟ࡼࡾ≉ᚩ௜ࡅࡽࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡇࢀࡽࡢᩓ
ₔᩓ஘ࡣࠊᚑ᮶ࡢᡃࠎࡢ◊✲࡟ࡼࡾぢ࠸ࡔࡉࢀ࡚࠸ࡿࠊᚤ㔞࡞㓟⣲ḞᦆᑟධࡀᏑᅾࡍࡿሙྜࡢ



㟁Ⲵ⛛ᗎᵓ㐀࡟క࠺ᩓₔᩓ஘࡜㢮ఝࡋ࡚࠸ࡿࡇ࡜ࡀぢฟࡉࢀࡓࠋࡍ࡞ࢃࡕࠊᮏ◊✲࡟࠾࠸࡚ほᐹࡉࢀࡓ F ㍈᪉ྥ࡟ἢࡗࡓࢪࢢࢨࢢ≧ᩓₔ

ᩓ஘ࡣࠊᮏヨᩱ࡟࠾ࡅࡿ )H2 ஧㔜ᒙෆ࡛ࡢ㓟⣲Ḟᦆ࡟㛵ಀࡍࡿ㟁Ⲵ⛛ᗎᵓ㐀࡟㉳ᅉࡍࡿ࡜⪃࠼ࡽࢀࡿࠋࡍ࡞ࢃࡕࠊᮏ◊✲࡟࠾࠸࡚స〇ࡉࢀࡓヨᩱࡣࠊ᭦࡞ࡿ $U+ ࢞ࢫ㸭&2 ࢞ࢫΰ

ྜ᮲௳ࡢ᭱㐺໬࡟ࡼࡾ㟁Ⲵ⛛ᗎᵓ㐀ࡀⓎ⌧ࡍࡿ࡜⪃࠼ࡽࢀࠊ㟁Ⲵ⛛ᗎㄏ㉳ᙉㄏ㟁ᛶࡢ⋓ᚓࡀᮇᚅࡉࢀࡿࠋ௨ୖࡢ⤖ᯝ࠿ࡽࠊᚑ᮶ࡢ◊✲࡟࠾࠸࡚ 5)H2 స〇࡟฼⏝ࡉࢀ࡚࠸ࡿࠊὀព῝࠸ྲྀࡾᢅ࠸ࡀᚲせ࡜ࡉࢀࡿ &2 ࢞ࢫ㸭&2 ࢞ࢫࡢ

ΰྜ࢞ࢫ࠾ࡼࡧ + ࢞ࢫ㸭&2 ࢞ࢫࡢΰྜ࢞ࢫ
ࡢ௦᭰࡜ࡋ࡚ࠊ㧗ᅽ࢞ࢫಖᏳἲ࡟ࡼࡿ≉ᐃタഛࢆᚲせ࡜ࡋ࡞࠸ᕤᴗつ᱁ࡢ $U+ ࢞ࢫ㸭
&2 ࢞ࢫࡢ฼⏝ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ♧၀ࡉࢀ

20

30

40

50

2 T 

ࡓࠋࡍ࡞ࢃࡕࠊࡇࢀࡽࡢ࢞ࢫΰྜẚࡢㄪᩚ࡟ࡼ

ࡿ⢭ᐦ࡞㓟⣲ศᅽไᚚ࡟ࡼࡾࠊ㟁Ⲵ⛛ᗎㄏ㉳ᙉᅗ  ␗࡞ࡿ $U+ ࢞ࢫ㸭&2 ࢞ࢫㄏ㟁ᛶࢆ♧ࡍ <)H2 స〇ࡀྍ⬟࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋΰྜẚࢆ⏝࠸࡚↝ᡂࡉࢀࡓヨᩱ࠿ࡽᚓࡽࢀࡓ⢊ᮎ ; ⥺ᅇᢡ᭤⥺ཧ⪃ᩥ⊩㸸

>@1,NHGD+2KVXPL.2KZDGD.,VKLL7,QDPL..DNXUDL<0XUDNDPL.<RVKLL6
0RUL<+RULEHDQG+.LWR1DWXUH  >@<+RULEH.<RVKLL1,NHGDDQG60RUL3K\V5HY%  ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼㸦㸰㸮㸰㸮ᖺ㸴᭶ࡢ㔠ᒓᏛ఍➼஑ᕞᨭ㒊ྜྠㅮ₇఍࡟࡚Ⓨ⾲ணᐃ㸧156

ู⣬ᵝᘧ㸰㸫㸰῝⣸እⓎගࢲ࢖࣮࢜ࢻᵓ㐀࡟࠾ࡅࡿⓎග≉ᛶࡢホ౯
Optical characterization of deep-ultraviolet light-emitting diode structuresᑠᓥ୍ಙ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵ
⛛∗㔜ⱥ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭ᩍᤵኳ㔝 ᾈ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶◊࣭ࢭࣥࢱ࣮㛗࣭ᩍᤵᮏ⏣ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶◊࣭෸ᩍᤵ㸯㸬◊✲┠ⓗ ῝⣸እ⥺Ἴ㛗㡿ᇦ䜢୰ᚰ䛸䛧䛶㏆ᖺ䚸༙ᑟయᮦᩱࢆ⏝࠸ࡓ㧗ຠ⋡ᅛయග※䛾㛤Ⓨ䛜⢭ຊⓗ䛻⾜䜟䜜䛶䛔䜛䚹280 nm䡚300 nm ᖏ䛻䛚䛡䜛 AlGaN Ⓨග䝎䜲䜸䞊䝗䠄LED䠅䛾እ㒊㔞Ꮚຠ⋡䠄EQE䠅䛿䚸ᶞ⬡ᑒṆ➼䛜䛺䛔ᵓ㐀䛻䛶᭱኱ 6%⛬ᗘ䜢㐩䛧䛶䛔䜛䚹䜎䛯䚸ྠᵓ㐀䜢ᶞ⬡ᑒṆ䛧䛯ሙྜ䚸ගྲྀ䜚ฟ䛧ຠ⋡䛜ᨵၿ䛧䚸᭱኱ 10%㏆䛟䛾 EQE 䛜ሗ࿌䛥䜜䛶䛔䜛䚹䛧䛛䛧䚸265
nm ᖏ䛾 LED ᵓ㐀䛻䛚䛔䛶䛿䚸ᶞ⬡ᑒṆ䛜䛺䛔ሙྜ䛾 EQE 䛜᭱኱䛷 3%⛬ᗘ䛻ไ㝈䛥䜜䛶䛚䜚䚸䛥䜙䛺䜛ᨵၿ䛜ᮃ䜎䜜䛶䛔䜛䚹䛭䛣䛷ᮏ◊✲䛷䛿䚸Ⓨග䝢䞊䜽Ἴ㛗䛜 285 nm 䛚䜘䜃 265
nm ㏆ഐ䛾 AlGaN LED ᵓ㐀䛾ᚤどⓗ䛺Ⓨග≉ᛶ䜢ホ౯䛧䛯䚹㸰㸬◊✲ෆᐜ࡜ᡂᯝ ホ౯࡟⏝࠸ࡓヨᩱࡣࠊࢧࣇ࢓࢖࢔ᇶᯈୖ࡟ᙧᡂࡉࢀࡓ AlN ᒙ࡜ AlGaN:Si ᒙ࡟Ⓨගᒙ࡜ࡋ࡚ AlGaN 㔞Ꮚ஭ᡞࢆ᭷ࡍࡿࠋ๓ᖺᗘࡲ
࡛ࡢᡃࠎࡢ◊✲࡟ࡼࡾࠊ௨ୗࡢࡇ࡜ࡀ᫂ࡽ࠿
࡟࡞ࡗ࡚࠸ࡿ㸸ձAlN ⾲㠃࡟ࡣ≉᭷ࡢ࣐ࢡࣟ
ࢫࢸࢵࣉࡀࠊࡲࡓࠊࡑࡢ࣐ࢡࣟࢫࢸࢵࣉࢆ㉳Ⅼ࡜ࡍࡿᩳ⥺ࢥࣥࢺࣛࢫࢺࡀ AlGaN:Si ᒙ࡟ᏑᅾࡍࡿࠋղAlN ⾲㠃ࡢ࣐ࢡࣟࢫࢸࢵࣉࢆ㉳Ⅼ࡜ࡋ࡚ࠊ┦ᑐⓗ࡟ AlN ࣔࣝศ⋡ࡢ⤌ᡂኚㄪ㡿ᇦࡀ AlGaN:Si ᒙ࡟⏕ࡌ࡚࠸ࡿࡇ࡜ࡀᣲ
ࡆࡽࢀࡿࠋճࡇࢀ࡜㐃ືࡍࡿࡼ࠺࡟ࠊQW ᒙ࡟୍㒊ഴᩳ㒊ศࡀᏑᅾࡋࠊࡑࡇ࡛ࡣ࿘ᅖࡢᖹ
ࡓࢇ㒊㸦ࢸࣛࢫ㒊㸧࡜ẚ㍑ࡋ࡚஭ᡞᖜࡀࡸࡸ
ᗈࡃ AlN ࣔࣝศ⋡ࡀప࠸ࡇ࡜࠿ࡽࠊ㛢ࡌ㎸ࡵ࣏ࢸࣥࢩࣕࣝ࡜ࡋ࡚ࡣపୗࡋࡓࠊ࠸ࢃࡺࡿ
࢟ࣕࣜ࢔ࡢᒁᅾᵓ㐀ࡀᙧᡂࡉࢀ࡚࠸ࡿࠋ≉࡟ࠊ
ᅗ 1 ヨᩱࡢ㢧ᚤീ㸸265 nm LED ᵓ㐀⾲
265 nm LED ᵓ㐀࡛ࡣ(a1)࠾ࡼࡧ(a2)ࡢࡼ࠺࡟ 㠃ࡢ(a1) SEM ീࠊ(a2) CL ീࠊ285 nm LED⾲㠃ࡢᵓ㐀࡜Ⓨගᙉᗘࡀ᫂ࡽ࠿࡞┦㛵ࢆᣢ ᵓ㐀⾲㠃ࡢ(b1) SEM ീࠊ(b2) CL ീࠋࡘࠋ157 ᮏᖺᗘࡣࠊྠᵝࡢᐇ㦂ࢆᗘྍኚ⎔ቃୗ࡟࠾࠸࡚ᐇ᪋ࡋࠊ
ྠ୍ࡢ఩⨨࡟࠾ࡅࡿ CL ᙉᗘࡢᗘኚ໬ࢆヲ⣽࡟ㄪ࡭ࡓࠋ

ࣂࣥࢻ➃Ⓨග࡟ᑐࡋ࡚ᾘගẚR q ࢆࠊCL ࢫ࣌ࢡࢺࣝࡢ࢚ࢿࣝ
ࢠ࣮✚ศ್ I ࢆ౑ࡗ࡚ࠕᐊ
࡟࡚ᐃࡋࡓ I ࡢࠊప 㸦38 K㸧࡟࡚ᐃࡋࡓ I ࡟ᑐࡍࡿẚࠖ࡜ᐃ⩏ࡋ࡚ࠊR QY ࡢ఩⨨౫Ꮡ ᅗ 2 (a) 265 nm LED ᵓ㐀ࠊ࠾ࡼࡧ(b) 265 nm LED ᵓ㐀࡟ᛶ㸦࣐ࢵࣆࣥࢢീ㸧ࢆྲྀᚓࡋ ࠾ࡅࡿ Rq ࡢ఩⨨౫Ꮡᛶࠋࡓࠋᅗ 2 ࠿ࡽ᫂ࡽ࠿࡞ࡼ࠺࡟ࠊ
㠃ෆࡢ R QY ࡣ୙ᆒ୍࡟ศᕸࡋ࡚࠸ࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡾࠊ࢟ࣕࣜ࢔ᒁᅾࡀ⏕ࡌࡿ✵㛫ࡢ
R QY ࡀẚ㍑ⓗ኱ࡁ࠸ࡇ࡜ࡀᐃ㔞ⓗ࡟♧ࡉࢀࡓࠋඛ㏙ࡢ⤌ᡂኚㄪ㡿ᇦࡀᚤᑠ㟁ὶ㊰࡜ࡋ࡚ືసࡍࡿྍ⬟ᛶ࡜ྜࢃࡏ࡚⪃࠼ࡿ࡜ࠊᮏ LED ᵓ㐀ࡢⓎගຠ⋡ࡀ㧗࠸ࡇ࡜ࡢ⌮⏤ࡢ୍ࡘ࡜ࡋ࡚ࠊࡼࡾ R QY ࡢ኱ࡁ࡞✵㛫࡬ඃඛⓗ࡟㟁ὶࡀὀධࡉࢀࡿࡇ࡜ࡀᙉࡃ♧၀ࡉࢀࡿࡶࡢ
࡜⤖ㄽ௜ࡅࡽࢀࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼x

Y. Nagasawa, K. Kojima, A. Hirano, M. Ipponmatsu, Y. Honda, H. Amano, I. Akasaki, and S. F.
Chichibu, "Comparison of Al x Ga 1-x N multiple quantum wells designed for 265 and 285 nm
deep-ultraviolet LEDs grown on AlN templates having macrosteps", Appl. Phys. Express 12,064009 (2019).

x

Y. Nagasawa, R. Sugie, K. Kojima, A. Hirano, M. Ipponmatsu, Y. Honda, H. Amano, I. Akasaki,
and S. F. Chichibu, "Two-dimensional analysis of the nonuniform quantum yields of multiple
quantum wells for AlGaN-based deep-ultraviolet LEDs grown on AlN templates with dense
macrosteps using cathodoluminescence spectroscopy", J. Appl. Phys. 126, 215703 (2019).

㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ 㛗⃝㝧♸㸪ᑠᓥ୍ಙ㸪ᖹ㔝ග㸪୍ᮏᯇṇ㐨㸪ᮏ⏣ၿኸ㸪ኳ㔝ᾈ㸪㉥ᓮຬ㸪⛛∗㔜ⱥ㸪"࣐ࢡࣟࢫࢸࢵࣉࢆᣢࡘ c 㠃 AlN/ࢧࣇ࢓࢖࢔ࢸࣥࣉ࣮ࣞࢺୖ࡟ᡂ㛗ࡉࡏࡓ AlGaN 㔞
Ꮚ஭ᡞࡢᵓ㐀ゎᯒ㸦㸰㸧"㸪2019 ᖺ ➨ 66 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍㸪ᮾிᕤᴗ኱Ꮫ㸪┠㯮༊㸪2019 ᖺ 3 ᭶㸬㸺⏘ᴗ㈈⏘ᶒ㸼࣭࡞ࡋ

158

ู⣬ᵝᘧ㸰㸫㸰❅໬≀༙ᑟయࡢᴟᛶ཯㌿ᢏ⾡㛤Ⓨ࡜ᴟᛶ཯㌿࣊ࢸࣟ⏺㠃ࡢᵓ㐀ホ౯
Development of polarization inversion method for nitride semiconductors andstructural characterization of polarization-inverted heterointerfaces௦⾲⪅ศᢸ⪅∦ᒣ ❳஧ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ᩍᤵ㇂ᕝ ᬛஅ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭෸ᩍᤵୖྥ஭ṇ⿱ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ຓᩍ     ᳃ᒸ ె⣖ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ಟኈ㸰ᖺ     ⏣㎶  ෽ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭ಟኈ㸯ᖺᶓᒣ ᑦ⏕ ኱㜰኱Ꮫ࣭ᕤᏛ◊✲⛉࣭Ꮫ㒊㸲ᖺᢸᙜ⪅ᮏ⏣ ၿኸ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ㒯  ᝴㈆ ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭◊✲ဨ㸯㸬◊✲┠ⓗ❅໬≀༙ᑟయࡣ㹡㍈᪉ྥ࡟཯㌿ᑐ⛠ᛶࡀḞዴࡋ㸪ᕧ኱࡞⮬Ⓨศᴟ࣭ࣆ࢚ࢰศᴟࢆ᭷ࡍ
ࡿࡓࡵ㸪⤖ᬗࡢ⾲࡜⿬㸦Ϫ᪘ᴟᛶ࡜ N ᴟᛶ㸪ࡲࡓࡣs㹡㠃㸧ࢆேⅭไᚚࡍࡿࡇ࡜࡛᪂
ࡓ࡞ᶵ⬟ࢆᐇ⌧࡛ࡁࡿ㸬ᮏ◊✲ࢢ࣮ࣝࣉ࡛ࡣ⌧ᅾ㸪⾲㠃άᛶ໬࢚࢘ࣁ᥋ྜ࠾ࡼࡧ࢚ࣆࢱ
࢟ࢩࣕࣝᡂ㛗ࢆ⏝࠸ࡓᴟᛶไᚚᢏ⾡ࢆ㛤Ⓨࡋ࡚࠾ࡾ㸪ࡇࢀ࡟ࡼࡾἼ㛗ኚ᥮⣲Ꮚࡸ㧗ຠ⋡㔞Ꮚග※ࡢᐇドࢆ┠ᣦࡋ࡚࠸ࡿ㸬ࡑࡢ㝿㸪ᴟᛶࢆேⅭⓗ࡟཯㌿ࡉࡏࡓ࣊ࢸࣟᵓ㐀ࢆస〇ࡍࡿࡀ㸪≉࡟⾲㠃άᛶ໬࢚࢘ࣁ᥋ྜࡢࣉࣟࢭࢫ᮲௳ࡣ᥋ྜᙉᗘࡸ཰⋡㸪ࡉࡽ࡟ࡣୖグࢹࣂ࢖ࢫࡢᛶ⬟࡟ᙉࡃᙳ㡪ࢆཬࡰࡍ࡜⪃࠼ࡽࢀࡿࡇ࡜࠿ࡽ㸪ᮏ◊✲࡛ࡣ GaN ࡢ᥋ྜ⏺㠃㏆ഐࡢᵓ㐀᏶඲ᛶ࡟㛵ࡍࡿᶵჾศᯒࢆᐇ᪋ࡋ㸪ࡑࡢࣉࣟࢭࢫ᮲௳ࡢ᭱㐺໬ࢆ┠ⓗ࡜ࡋࡓ㸬ࡲࡓ࢚ࣆࢱ࢟ࢩࣕࣝ࡞ GaN ᴟᛶ཯㌿ᵓ㐀ࡢᙧᡂ࡜Ἴ㛗ኚ᥮⣲Ꮚࡢືసᐇドࢆヨࡳࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
㸰㸬㸯 ⾲㠃άᛶ໬࢚࢘ࣁ᥋ྜ࡟ࡼࡿᴟᛶไᚚࡢ᮲௳᭱㐺໬ ᭤⋡࡜ RMS ⢒ࡉࡀࡑࢀ
ࡒࢀ+10 /km㸪0.28 nm ࡛࠶ࡿᖹᆠ࡞ࣂࣝࢡ GaN ᇶᯈࢆ⏝࠸㸪
Ar ཎᏊࣅ࣮࣒㟁ὶ 200 mA㸪Ar ຍ㏿㟁ᅽ 1.0 kV㸪ຍ⇕ᗘ 240Υ㸪༳ຍᅽຊ 5.9 MPa㸪ᅽຊ༳ຍ᫬㛫 270 min ࡜ࡋ㸪Ar ↷ᑕ᫬㛫ࢆኚ໬ࡉࡏ᥋ྜᙉᗘࢆẚ㍑ࡋࡓ㸬Ar ↷ᑕ᫬㛫 350 s ࡢ࡜ࡁ᥋ྜᙉᗘࡣ᭱኱
࡟࡞ࡾ㸪ࡑࡢ್ࡣ 13.5 MPa ࡛࠶ࡗࡓ㸬Ar ↷ᑕ᫬㛫ࡀ 350 s ᮍ‶࡛ࡢ᥋ྜᙉᗘࡢపୗࡣ㸪Ar ↷ᑕ࡟ࡼࡿ⾲㠃ࡢάᛶ໬ࡀ୙༑ศ࡛࠶ࡗࡓࡓࡵ࡜⪃࠼ࡽࢀࡿ㸬ࡲࡓ㸪Ar ↷ᑕ᫬㛫ࡀ
350 s ࢆ㉸࠼ࡓ࡜ࡁ᥋ྜᙉᗘࡀḟ➨࡟పୗࡋ࡚࠸ࡃഴྥࡀぢࡽࢀࡓ㸬Ar ࢆ㛗᫬㛫↷ᑕࡍࡿࡇ࡜࡟ࡼࡿ GaN ⾲㠃ࡢ⤖ᬗ≧ែࡢኚ໬ࢆ⪃ᐹࡍࡿࡓࡵ㸪as-grown ࡞ Si ᇶᯈୖ GaN ⷧ⭷࡜ Ar ࢆ 1200 s ↷ᑕࡋࡓ Si ᇶᯈୖ GaN ⷧ⭷ࡢ⾲㠃ࢆ㸪㈗◊✲ᡤಖ᭷ࡢ㉮ᰝᆺ㟁Ꮚ㢧ᚤ㙾㸦S4300㸧࡟⿦ഛࡉࢀࡓ㟁Ꮚ⥺ᚋ᪉ᩓ஘ᅇᢡ㸦EBSD㸧⿦⨨࡞ࡽࡧ࡟ᮏᏛಖ᭷ࡢ཯ᑕ
㧗㏿㟁Ꮚ⥺ᅇᢡ㸦RHEED㸧⿦⨨ࢆ⏝࠸࡚ほᐹࡋࡓ㸬EBSD ほᐹࡢ⤖ᯝ㸪Ar ↷ᑕ๓ᚋ࡛ኚ໬ࡣぢࡽࢀࡎ㸪࡝ࡕࡽࡶ༢⤖ᬗᛶࢆ♧ࡍ⳥ụࣃࢱ࣮ࣥࡀᚓࡽࢀࡓ㸬୍᪉ RHEED ほᐹ

159࡛ࡣ Ar ↷ᑕ๓ࡣ᫂░࡞ࢫࢺ࣮ࣜࢡࣃࢱ࣮ࣥࡀぢࡽࢀࡿࡀ㸪㛗᫬㛫 Ar ↷ᑕࡋࡓヨᩱ࡛ࡣࢫ࣏ࢵࢺᙧ≧࡜ࣁ࣮ࣟᙧ≧ࡀΰᅾࡋࡓࣃࢱ࣮ࣥࡀぢࡽࢀ㸪Ar ↷ᑕ࡟ࡼࡾ GaN ᭱⾲㠃ࡀ࢔ࣔࣝࣇ࢓ࢫ໬ࡍࡿࡇ࡜ࡀศ࠿ࡗࡓ㸬EBSD ࡞ࡽࡧ࡟ RHEED ほᐹࡢࣉ࣮ࣟࣈ῝ࡉ࠿ࡽุ᩿ࡍࡿ࡜㸪ࡇࡢ࢔ࣔࣝࣇ࢓ࢫᒙࡢཌࡉࡣᩘཎᏊᒙ࠿ࡽᩘ༑ nm ⛬ᗘ࡛࠶ࡾ㸪࠶ࡿ୍ᐃࡢཌࡉ௨ୖࡢ୰㛫ᒙࡀᙧᡂࡉࢀࡿ࡜᥋ྜᙉᗘࡀపୗࡍࡿࡶࡢ࡜⪃࠼ࡽࢀࡿ㸬௨ୖࡢ⤖ᯝ
ࢆ㋃ࡲ࠼㸪᭱㐺໬᮲௳࡛ࢧࣇ࢓࢖࢔ᇶᯈୖ GaN ⷧ⭷࡜ Si ᇶᯈୖ GaN ⷧ⭷ࢆ᥋ྜࡋࡓ࡜
ࡇࢁ㸪ࡇࢀࡲ࡛ᐇ⌧࡛ࡁ࡞࠿ࡗࡓ 22 mm ゅࡢ኱㠃✚ヨᩱࡢ᥋ྜ࡟ᡂຌࡋࡓࠋ
㸰㸬㸰 ࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗࡟ࡼࡿᴟᛶไᚚ࡜⣲Ꮚᛂ⏝ ⥆࠸࡚࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗࡟ࡼࡾᙧᡂࡋࡓᴟᛶ཯㌿ GaN ⷧ⭷ࢆ⏝࠸࡚㸪ࢳࣕࢿࣝᑟἼ㊰ᆺἼ㛗ኚ᥮ࢹࣂ࢖ࢫࢆస〇ࡋࡓ㸬Ἴ㛗ኚ᥮ࡀ⏕ࡌࡿࢳࣕࢿࣝᑟἼ㊰࡜ගᏛ⤖ྜࡢࡓࡵ࡟⿦Ⲵࡍࡿᅇᢡ᱁Ꮚ⤖ྜჾࡢࣃࢱ࣮ࣥࢆ SiO 2 ࡟㌿෗ᚋ㸪ࡇࢀࢆ࣐ࢫࢡ࡜ࡋ࡚ ICP-RIE ࡟ࡼࡾᅇᢡ᱁Ꮚࡢ⁁῝ࡉࡲ࡛࢚ࢵࢳࣥࢢࡋ GaN ࡟㌿෗ࡋࡓ㸬ࡑࡢᚋ Ni ࣐ࢫࢡ࡟ࡼࡾᅇᢡ᱁Ꮚ㒊ࢆಖㆤࡋ෌ᗘ ICP-RIE
࡟ࡼࡾ GaN ࢆࢧࣇ࢓࢖࢔ᇶᯈࡲ࡛࢚ࢵࢳࣥࢢࡋ㸪ࢳࣕࢿࣝᑟἼ㊰ࢆᙧᡂࡋࡓ㸬Ἴ㛗 842
nm ࡢ࣮ࣔࢻྠᮇࣃࣝࢫ࣮ࣞࢨගࢆᇶᮏἼ࡜ࡋ࡚ᅇᢡ᱁Ꮚ⤖ྜჾ࡟↷ᑕࡋࡓ࡜ࡇࢁ㸪ධ
ᑕゅ 37rࡢ࡜ࡁࢳࣕࢿࣝᑟἼ㊰ෆ࡟ᙉࡃᑟἼࡋ㸪㟷⣸Ⰽࡢ➨஧㧗ㄪἼࡀⓎ⏕ࡋࡓ㸬㧗ㄪἼᙉᗘࡢᇶᮏἼᙉᗘ౫Ꮡᛶࢆㄪ࡭ࡓ࡜ࡇࢁ㸪ᇶᮏἼᙉᗘࡢ஧஌࡟ẚ౛ࡋ࡚࠸ࡿࡇ࡜ࢆ
☜ㄆࡋ㸪ᴟᛶ཯㌿ᵓ㐀ࢆᑟධࡋࡓ GaN ࡟ࡼࡿἼ㛗ኚ᥮⣲Ꮚࡢືసᐇド࡟ᡂຌࡋࡓ㸬㸰㸬㸱 ⤖ㄽ ᮏ◊✲࡛ࡣ஧ᖺ࡟ࢃࡓࡾ❅໬≀༙ᑟయࡢᴟᛶ཯㌿ᢏ⾡㛤Ⓨ࡜ᴟᛶ཯㌿࣊ࢸࣟ⏺㠃ࡢᵓ㐀ホ౯ࢆᐇ᪋ࡋ㸪≉࡟⾲㠃άᛶ໬࢚࢘ࣁ᥋ྜ࡜࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗࡜࠸࠺஧✀㢮ࡢᴟᛶ཯㌿ᡭἲࢆ㛤Ⓨࡋ㸪ࡇࡢᵓ㐀ࢆ⏝࠸ࡓἼ㛗ኚ᥮⣲Ꮚࡢືసᐇド࡟ᡂຌࡋࡓ㸬௒ᚋࡣᴟᛶ཯㌿⏺㠃ࡢᵓ㐀≉ᛶホ౯ࡢࡳ࡞ࡽࡎ㟁Ẽⓗ࣭ගᏛⓗ࡞≉ᛶࡢホ౯ࢆేࡏ࡚ᐇ
᪋ࡍࡿࡇ࡜࡛㸪Ἴ㛗ኚ᥮⣲Ꮚࡔࡅ࡛࡞ࡃࡼࡾᗈ⠊࡞ࢹࣂ࢖ࢫ࡬ࡢᛂ⏝ࡀᮇᚅ࡛ࡁࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ ⏣㎶ ෽ 㸪ᶓᒣ ᑦ⏕ 㸪ୖྥ஭ ṇ⿱ 㸪㇂ᕝ ᬛஅ 㸪∦ᒣ ❳஧ 㸪ࠕ⾲㠃άᛶ໬᥋ྜ࡟ࡼࡾస〇ࡋࡓ GaN ศᴟ཯㌿✚ᒙᵓ㐀ࡢ᥋ྜᙉᗘホ౯ࠖ㸪➨ 80 ᅇ ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪໭ᾏ㐨኱Ꮫ㸪2019 ᖺ 9 ᭶ 18㹼21 ᪥㸬࣭ R. Tanabe, N. Yokoyama, M. Uemukai, T. Tanikawa and R. Katayama, “Bonding Strength ofPolarity-Inverted

GaN/GaN

Structure

FabricatedbySurface-ActivatedBonding,”

APWS2019, OIST, Japan, 2019 ᖺ 11 ᭶ 10㹼15 ᪥.
࣭ ᳃ᒸ ె⣖ 㸪ୖྥ஭ ṇ⿱ 㸪ୖᮡ ㅬḟ㑻㸪ṇ┤ ⰼዉᏊ㸪୕Ꮿ ⚽ே㸪᳃ᕝ 㝯ဢ㸪⸨ཎ ᗣᩥ㸪㇂ᕝ ᬛஅ 㸪∦ᒣ ❳஧ 㸪
ࠕAlN ᑟἼ㊰➨஧㧗ㄪἼⓎ⏕ࢹࣂ࢖ࢫࡢࡓࡵࡢ㞟ගࢢ࣮ࣞࢸ࢕ࣥࢢ⤖ྜჾࠖ㸪➨ 80 ᅇ ᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍㸪໭ᾏ㐨኱Ꮫ㸪2019ᖺ 9 ᭶ 18㹼21 ᪥㸬࣭ Y. Morioka, M. Uemukai, T. Tanikawa, K. Uesugi, K. Shojiki, H. Miyake, T. Morikawa, Y.
Fujiwara and R. Katayama, “Input Focusing Grating Coupler for AlN Deep UV Waveguide
SHG Device,” SEMICONNANO2019, ⚄ᡞ኱Ꮫ, 2019 ᖺ 9 ᭶ 24㹼27 ᪥.

160ู⣬ᵝᘧ㸰㸫㸰Ỉ⁐ᛶ⤖ᬗࢫ࣏ࣥࢪస〇࡟ྥࡅࡓ DNA ᵓ㐀యタィ࡟㛵ࡍࡿ◊✲DNA scaffold design for the development of water-soluble crystal sponges㝡ᒣ࣭᫂ᮾி኱Ꮫ࣭⥲ྜᩥ໬◊✲⛉࣭ᩍᤵᶓ᳃┿㯞࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭◊✲ᶵ㛵◊✲ဨ⏣ᕝ⨾✑࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
㸯㸬◊✲┠ⓗ 㔠ᒓ᭷ᶵᵓ㐀య㸦MOF㸧ࡸከᏍᛶ㓄఩㧗ศᏊ㸦PCP㸧➼ࡢ⣽Ꮝᛶ⤖ᬗࢆ⏝࠸࡚ࠊࡑࡢ
⣽Ꮝ࡟ᮍ▱ࡢ໬ྜ≀ࢆつ๎ⓗ࡟㓄ิࡉࡏࡿࡇ࡜࡛ X ⥺ᵓ㐀ゎᯒࢆྍ⬟࡜ࡍࡿ⤖ᬗࢫ࣏ࣥࢪἲࡣࠊኳ↛≀࠿ࡽྜᡂ໬ྜ≀࡟⮳ࡿࡲ࡛ 100 ✀㢮௨ୖࡢᵓ㐀Ỵᐃ࡟ᡂຌࡋ࡚࠸ࡿ⏬
ᮇⓗ࡞᪉ἲ࡛࠶ࡿ[Inokuma, Y. et al., Nature 495, 461-466, 2013.]ࠋ⤖ᬗࢆศᏊࡢ⁐ᾮ࡟ᾐࡍࡇ࡜࡟ࡼࡾ⤖ᬗෆ࡬ࡢศᏊࡢ྾཰࡜つ๎ⓗ㓄ิࢆᐇ⌧ࡍࡿࢩࣥࣉࣝ࡞᪉ἲ࡛࠶ࡿࡓ
ࡵࠊ㐺⏝⠊ᅖࡀᗈ࠸ࠋࡋ࠿ࡋ࡞ࡀࡽ MOF࣭PCP ࡟ࡼࡿ⤖ᬗࢫ࣏ࣥࢪࡣ㏻ᖖ᭷ᶵ⁐፹ୗ࡛⾜ࢃࢀࡿࡓࡵࠊỈ⁐ᛶࡢศᏊ࡬㐺⏝ࡍࡿࡢࡣ㞴ࡋ࠸ࠋࡲࡓࠊ⣽Ꮝࡢ኱ࡁࡉࡀᩘࢼࣀ࣓
࣮ࢺࣝ⛬ᗘ࡟ไ㝈ࡉࢀࡿࡓࡵࠊࢼࣀ⢏Ꮚ➼ࡢࢼࣀᮦᩱࡢ㓄ิ࡬ࡢᛂ⏝࡟ࡶྥ࠿࡞࠸ࠋᮏ
◊✲࡛ࡣࠊMOF࣭PCP ࡜ྠᵝ࡟ᵓ㐀タィࡢ⮬⏤ᗘࡀ㧗ࡃࠊぶỈᛶ࡛⏕యศᏊ࡜ࡢぶ࿴ᛶࢆ᭷ࡍࡿ DNA ࢆ⏝࠸࡚ࠊỈ⁐ᛶࡢ⤖ᬗࢫ࣏ࣥࢪࢆ㛤Ⓨࡍࡿࡇ࡜ࢆ┠ⓗ࡜ࡋࡓࠋ㸰㸬◊✲ෆᐜ࡜ᡂᯝ ࡇࢀࡲ࡛࡟ሗ࿌ࡉࢀ࡚࠸ࡿ DNA ࢆ⏝࠸ࡓࢼࣀ⢏Ꮚࡢ⤖ᬗ໬࡛ࡣࠊ⤖ᬗࡢ᱁Ꮚᐃᩘࡀ
⏝࠸ࡿࢼࣀ⢏Ꮚࡢ⢏ᚄࡢ஧ಸ⛬ᗘ࠿ࡑࢀࡼࡾࡶᑠࡉ࠸ሙྜࡣࠊẚ㍑ⓗ⤖ᬗ໬ࡋࡸࡍ࠸࡜
࠸࠺ࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡓࠋ᱁Ꮚᐃᩘࢆᗈࡆࡿࡓࡵ࡟ DNA ࡢ㙐㛗ࢆ㛗ࡃࡍࡿ࡜ࠊ⤖ᬗࡀ࢔ࣔࣝࣇ࢓ࢫ࡟࡞ࡿ࡜࠸࠺ሗ࿌ࡶ࡞ࡉࢀ࡚࠸ࡓ[Nykypanchuk, D. et al., Nature 451,
549-552, 2008]ࠋᡃࠎࡣࠊDNA ࡢሷᇶ㓄ิࡸ⢏Ꮚ㛫ࢆ⤖ྜࡍࡿ DNA ࡢ஧㔜⼺᪕ࡢ๭ྜ࡜㒊఩➼ࢆ᭱㐺໬ࡋࠊ⢏Ꮚ㛫㊥㞳ࡀ኱ࡁࡃ࡚ࡶ⤖ᬗ࡜ࡋ࡚ᡂ㛗ࡋࡸࡍ࠸᮲௳ࢆㄪ࡭ࡓࠋ ஧✀㢮ࡢ␗࡞ࡿ୍ᮏ㙐 DNA㸦DNAa, DNAb㸧ࢆ⢏ᚄ 17nm ࡢ㔠ࢼࣀ⢏Ꮚ࡟ࡑࢀࡒࢀಟ
㣭ࡋࠊDNA ಟ㣭ࢼࣀ⢏Ꮚ(DNA-NPa, DNA-NPb)ࢆస〇ࡋࡓࠋDNAa ࡢᮎ➃㒊ศࡢሷᇶ㓄ิཬࡧ DNAb ࡢᮎ➃㒊ศࡢሷᇶ㓄ิ࡜┦⿵ⓗ࡞ሷᇶ㓄ิࢆᣢࡘᯫᶫ DNA ࢆΰྜࡋࠊ
0.2M ࡢሷ໬ࢼࢺ࣒ࣜ࢘ࢆຍ࠼ࡓࣜࣥ㓟⦆⾪⁐ᾮ୰࡛᪼ࠊᚎ෭ࡍࡿࡇ࡜࡛⤖ᬗ໬ࡋࠊ

DNA-NP ⤖ᬗࢆస〇ࡋࡓࠋస〇ࡋࡓ⤖ᬗࡣගᏛ㢧ᚤ㙾࡟ࡼࡿほᐹ࡛⤖ᬗᙧ≧ࢆᐃࡋࠊX ⥺ᑠゅᩓ஘࡟ࡼࡾᵓ㐀ゎᯒࢆ⾜ࡗࡓࠋ ගᏛ㢧ᚤ㙾࡟ࡼࡿ⤖ᬗᙧ≧ほᐹ࡟ࡼࡾࠊDNA-NP ࡣ⢏≧࠶ࡿ࠸ࡣࡸࡸከ㠃యᙧ≧࡛ᡂ㛗ࡋ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࢀࡲ࡛ࡢ◊✲࡟ࡼࡾࠊ࢔ࣔࣝࣇ࢓ࢫࡸከ⤖ᬗ≧ែ࡛ᡂ㛗ࡋࡓሙྜࡣ୙ᐃᙧࡢᙧ≧࡟࡞ࡾࡸࡍ࠸ࡇ࡜ࡀࢃ࠿ࡗ࡚࠸ࡓࡓࡵࠊ༢⤖ᬗࡀ࡛ࡁ࡚࠸ࡿࡇ
࡜ࡀ♧၀ࡉࢀࡓ㸦ᅗ 1b㸧
ࠋ࢟ࣕࣆ࣮ࣛࣜ⟶࡟ᑒධࡋࡓ DNA-NP ⤖ᬗ⁐ᾮࢆ X ⥺ᑠゅᩓ

161

஘࡟ࡼࡾ

ᐃࡋᵓ㐀ゎᯒ

DE

ࢆ⾜࠺࡜ࠊDNA-NP ⤖ᬗࡣ⤖ᬗᛶࡢⰋ࠸ bcc ᵓ㐀࡛࠶ࡿࡇ࡜ࠊ᱁Ꮚᐃᩘࡣ
64nm ࡜ᚑ᮶ࡢ DNA-NP⤖ᬗ࡛ࡣᐇ⌧࡛ࡁ࡞࠿ࡗ
ࡓᗈ࠸⢏Ꮚ㛫㊥㞳࡛࠶ࡿИPࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡇࢀ࡟
ࡼࡾࠊDNA-NP ⤖ᬗ࡟ࡣF

ࢼࣀࢧ࢖ࢬࡢࢤࢫࢺศᏊ

EFF

ࡸ⢏Ꮚࢆྲྀࡾ㎸ࡴࡇ࡜ࡀ֪ࢢఈ਼ QP

࡛ࡁࡿ✵ᏍࡀከᩘᏑᅾࡍ
ࡿࡇ࡜ࡀ♧၀ࡉࢀࠊỈ⁐ᛶࡢ⤖ᬗࢫ࣏ࣥࢪ࡜ࡋ࡚
ᶵ⬟ࡍࡿࡇ࡜ࡀᮇᚅࡉࢀ
ࡿࠋਦ̏ɿ D '1$13݃ধ͹ରৼཱི๏ߑଆ E ޭָ‫ݨ‬ඏ‫ ଀ں‬F ;તঘֱࢆཛྷͶΓΖ݃ধߑଆմੵ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
ヱᙜ࡞ࡋࠋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼ヱᙜ࡞ࡋࠋ㸺⏘ᴗ㈈⏘ᶒ㸼࣭ฟ㢪␒ྕ㸸≉㢪 2019-169737Ⓨ᫂⪅㸸⏣ᕝ⨾✑, ᶓ᳃┿㯞Ⓨ᫂ྡ⛠㸸ࢼࣀ⢏Ꮚ⤖ᬗ࠾ࡼࡧࡑࡢ〇㐀᪉ἲฟ㢪ே㸸ᅜ❧኱Ꮫἲேྡྂᒇ኱Ꮫ
ฟ㢪᪥㸸2019 ᖺ 9 ᭶ 18 ᪥162ู⣬ᵝᘧ㸰㸫㸰

HVPE ἲ࡟ࡼࡿ GaN ࣂࣝࢡ⤖ᬗཬࡧ GaN ⷧ⭷స〇
Growth of bulk or thin film GaN crystal by HVPEᒸ⏣ᡂோ࣭ᒣཱྀ኱Ꮫ኱Ꮫ㝔࣭๰ᡂ⛉Ꮫ◊✲⛉࣭෸ᩍᤵᮧୖᑦ࣭ᮾி㎰ᕤ኱Ꮫ࣭ᕤᏛᗓ࣭෸ᩍᤵ
᪂ᐑ❶࿃࣭ᒣཱྀ኱Ꮫ኱Ꮫ㝔࣭๰ᡂ⛉Ꮫ◊✲⛉࣭M1᪂⏣ᕞ࿃࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭≉௵෸ᩍᤵኳ㔝ᾈ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵᮏ⏣ၿኸ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭෸ᩍᤵ
ฟ᮶┿ᩯ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ GaN ࡣඃࢀࡓ㟁Ẽⓗ≉ᛶࢆ♧ࡍࡇ࡜࠿ࡽ㸪኱㟁ຊࡢࢹࣂ࢖ࢫᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿ㸬≉࡟⤯⦕◚ቯ㟁ᅽࡀ 3.3 MV/cm ࡜኱ࡁࡃ㧗⪏ᅽࡢ㟁Ꮚࢹࣂ࢖ࢫࡢᛂ⏝ࡀྍ⬟࡜ࡉࢀ࡚࠸ࡿ㸬ࡇࢀࡽࡢࢹࣂ࢖ࢫࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣ㸪ṧ␃࢟ࣕࣜ࢔⃰ᗘࡀ 1015 cm-3ྎ௨ୗ࠿ࡘ
10 μm ௨ୖࡢ⭷ཌࡢ⤖ᬗࡀᚲせ࡜ࡉࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ࡞ࡀࡽ㸪GaN ࡢ⤖ᬗᡂ㛗ᢏ⾡ࡣᮍ⇍࡛࠶ࡾ㸪MOVPE ἲ࡟౫ࢀࡤ 1016 cm-3ྎࡢ C ୙⣧≀ࡢΰධࡀၥ㢟࡜࡞ࡗ࡚࠸ࡿ㸬୍⯡ⓗ࡟ C ཎᏊࡣ࢟ࣕࣜ࢔ࡢ࣮࢟ࣛ࡜࡞ࡿࡓࡵ㸪ప୙⣧≀ᐦᗘࡢ࢚ࣆ⭷ࢆస〇ࡍࡿࡇ࡜ࡀ
ᅔ㞴࡛࠶ࡿ㸬ࡲࡓ㸪ᡂ㛗㏿ᗘࡶ 2 μm/h ⛬ᗘ࡜㐜ࡃ㸪ᕤᴗⓗ࡞ᛂ⏝࡟࠾࠸࡚኱ࡁ࡞࣎ࢺ
ࣝࢿࢵࢡ࡜࡞ࡗ࡚࠸ࡿ㸬ࡇࡢၥ㢟ࢆゎỴࡍ࡭ࡃ㸪ᮏ◊✲࡛ࡣ HVPE ἲࢆ⏝࠸ࡿ㸬HVPE
ἲࡣཎᩱ࡟ C ࢆྵࡲ࡞࠸ࡓࡵ㸪ప୙⣧≀ᐦᗘࡢᐇ⌧ࡢྍ⬟ᛶࡀ࠶ࡾ㸪ࡲࡓ㸪ᡂ㛗㏿ᗘ
ࡶ 100 μm/h ࢆࡣࡿ࠿࡟㉸࠼ࡿ㏿ᗘ࡛ᡂ㛗ࡀྍ⬟࡛࠶ࡿࡇ࡜࠿ࡽ㸪ᑗ᮶ࡢ㟁Ꮚࢹࣂ࢖ࢫ
స〇⏝ᡂ㛗ᡭἲ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿ㸬ࡉࡽ࡟㸪ࡑࡢ㧗㏿ᡂ㛗ࢆ฼⏝ࡍࡿࡇ࡜࡛㸪ࣂࣝ
ࢡ GaN ࡢస〇ࡀྍ⬟࡜࡞ࡿ㸬ᮏ◊✲࡛ࡣ㸪HVPE ࡢࣂࣝࢡཬࡧⷧ⭷ᡂ㛗࡟࠾ࡅࡿၥ㢟Ⅼࢆ᫂ࡽ࠿࡟ࡋ㸪㧗ရ㉁⤖ᬗస〇ࢆ┠ᣦࡍ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ 2019 ᖺᗘࡢ◊✲࡜ࡋ࡚ࠊཎᩱ࡟୕ሷ໬࣒࢞ࣜ࢘(GaCl 3 )ࢆ⏝࠸
ࡿ Tri-Halide Vapor Phase Epitaxy (THVPE)࡟ࡼࡿ N ᴟᛶ᪉ྥࡢ GaN ⤖ᬗᡂ㛗࡟ྲྀࡾ⤌ࢇࡔࠋ๓ᖺᗘࡲ࡛࡟ࠊ1250Υ࡟࡚ᡂ㛗ࡋࡓ GaN ⤖ᬗࡢṧ␃㓟⣲୙⣧≀ࡀ 1.31018 cm-3࡜
ẚ㍑ⓗ㧗⃰ᗘ࡛࠶ࡾࠊࡉࡽ࡞ࡿ㧗⣧ᗘ໬ࡀᚲせ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡗࡓࠋࡲࡓࠊ◊✲┠ⓗ࡟ᥖࡆࡽࢀࡓṧ␃Ⅳ⣲⃰ᗘ࡟ᑐࡍࡿ᳨ウࡶᮍᐇ᪋࡛࠶ࡗࡓࡓࡵࠊ௒ᖺᗘࡣ㧗໬࡟ࡼࡿ୙⣧≀⃰ᗘ࡬ࡢᙳ㡪ࢆ᥈ࡗࡓࠋᮏᐇ㦂࡛ࡣࠊGaN ⤖ᬗᡂ㛗㒊࿘ᅖ࠿ࡽࡣ㓟⣲ࡸࢩࣜࢥࣥ
୙⣧≀※࡜࡞ࡾᚓࡿ▼ⱥ〇ࡢ㒊ᮦࢆ౑⏝ࡋ࡞࠸࡛⤖ᬗᡂ㛗ࢆ⾜ࡗࡓࠋᡂ㛗᮲௳ࡣࠊGaCl 3౪⤥ศᅽ: 2.010-3 atmࠊNH 3 ౪⤥ศᅽ: 0.15 atmࠊᡂ㛗᫬㛫ࡣ 3 ᫬㛫࡜ࡋࡓࠋᅗ 1 ࡣᡂ㛗ࡋࡓ GaN ⤖ᬗࢆ஧ḟ࢖࢜ࣥ㉁㔞ศᯒ(SIMS)⿦⨨࡟࡚୙⣧≀⃰ᗘࢆ ᐃࡋࡓ⤖ᯝ࡛࠶ࡿࠋ
⤖ᬗ୰ࡢẚ㍑ⓗᖹᆠ㒊ࢆศᯒࡋࠊ10 μm ࡢ῝ࡉࡲ࡛ࡢ୙⣧≀⃰ᗘࢆ163ᐃࡋࡓࠋᅗࡼࡾ 3

1017 cm-3 ࡢṧ␃㓟⣲୙⣧≀㔞࡟࡞ࡗ࡚࠸ࡿࡇ࡜ࡀࢃ࠿ࡿࠋ
ࡑࡢ௚ࡢࢻࢼ
࣮※࡟࡞ࡾᚓࡿࢩࣜࢥࣥࡢṧ␃㔞ࡣ
1017 cm-3 ௨ୗࠊⅣ⣲࡟㛵ࡋ࡚ࡣ SIMS
ศᯒࡢ᳨ฟ㝈⏺௨ୗ(1016 cm-3௨ୗ)࡛
࠶ࡾࠊపⅣ⣲⃰ᗘࡢ GaN ⤖ᬗࡀ-C 㠃ୖ࠿ࡘ㧗࡟࡚ᡂ㛗ྍ⬟࡛࠶ࡿࡇ࡜

ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋ㏻ᖖࠊᮏ◊✲࡛⏝࠸࡚࠸ࡿ-C 㠃ࡣ㓟⣲ཎᏊࢆྲྀࡾ㎸ࡳࡸࡍ࠸㠃࡛࠶ࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠾ࡾࠊ
1017 cm-3 ྎ࡟ࡲ࡛పῶ࡛ࡁࡓ౛ࡣᩘ
ᑡ࡞ࡃࠊᮏᡭἲ࡟ࡼࡿ GaN ᇶᯈ〇㐀࠶ࡿ࠸ࡣ㟁Ꮚࢹࣂ࢖ࢫࡢࢳࣕࢿࣝᒙ

ᅗ 1 1300Υ࡟࡚ᡂ㛗ࡋࡓ-C 㠃 GaN ⤖ᬗࡢ῝ᙧᡂ࡟ᑐࡋ࡚᭷ຠ࡞ᡭἲ࡛࠶ࡿ࡜ゝࡉ᪉ྥ SIMS ࣉࣟࣇ࢓࢖ࣝ

࠼ࡿࠋពᅗⓗ࡟࢟ࣕࣜ࢔⃰ᗘࢆ 1018 cm-3 ྎ࡟ไᚚࡋ࡚ᇶᯈᥦ౪ࡶྍ⬟࡛࠶ࡿࡇ࡜ࡀᐇドࡉࢀࡓࠋ୍⯡࡟ᡂ㛗ᗘࢆ㧗໬ࡍࡿ࡜ᅛ⁐㝈⏺(୙⣧≀ࡀ⤖ᬗ୰࡟ྲྀࡾ㎸ࡲࢀࡿ㔞ࡢୖ㝈)ࡣ኱ࡁࡃ࡞ࡿࡣࡎ࡛࠶ࡿ࠿ࡽࠊ୙⣧≀ࡢྲྀࡾ㎸ࡳࡀᢚไࡉࢀࡓせᅉ࡜ࡋ࡚ࠊᮏᡂ
㛗ᗘ࡟࠾ࡅࡿ⤖ᬗ⾲㠃ᵓ㐀ࡀ୙⣧≀ྲྀࡾ㎸ࡳ࡟ᙉࡃᙳ㡪ࢆཷࡅ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡿࠋ⌮ㄽィ⟬࡜ࡢᩚྜᛶࢆ௒ᚋ᳨ドࡍࡿᚲせࡀ࠶ࡿࡀࠊ⾲㠃࡟Ỉ⣲ཎᏊࡀ྾╔ࡋࡓ෌ᵓᡂ㠃㸦Ᏻᐃ࡞㠃㸧࡛ࡢィ⟬࡟࠾࠸࡚ࠊMOVPE ࡸ HVPE ἲࡢࡼ࠺࡞Ỉ⣲࢟ࣕࣜ࢔ࢆ⏝࠸ࡿሙྜࡸ NH 3 ࡢศゎ࡛⏕ࡌࡓỈ⣲ࡀ㠀ᖖ࡟ከ࠸⣔࡛ࡣࠊ❅⣲ཎᏊ࡟Ỉ⣲ࡀ⤊➃ࡋࡓ
3N-H ᵓ㐀࡜࡞ࡗ࡚࠸ࡿࡀࠊTHVPE ἲࡢࡼ࠺࡟࢟ࣕࣜ࢔࢞ࢫ࡟❅⣲ࢆ⏝࠸ࠊNH 3 ศゎ࡟ࡼࡿỈ⣲Ⓨ⏕ࡀᑡ࡞࠸(࡜⪃࠼ࡽࢀࡿ)⣔࡛ࡣ⤊➃ᵓ㐀ࡀ␗࡞ࡗ࡚࠸ࡿྍ⬟ᛶࡀ࠶ࡿࠋ௒
ᚋࠊ➨୍ཎ⌮ィ⟬࡟ࡼࡿ⌮ㄽ᳨ウ࡜ࡢ┦㛵ࢆ᫂ࡽ࠿࡟ࡋᮏ⌧㇟ࢆ᳨ドࡋ࡚ࡃࡇ࡜ࡣᏛ⾡ⓗ࡟ࡶ㠀ᖖ࡟⯆࿡῝࠸ࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ཎⴭㄽᩥ㸼
≉࡟࡞ࡋࠋ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭ Hisashi Murakami, Naoya Kawamoto, Yoshinao Kumagai, Akinori Koukitu, Recent progressof thick GaN and its related alloys via HVPE and THVPE㸪SPIE Photonics West 2020㸪ࢧࣥࣇࣛࣥࢩࢫࢥ㸪2020 ᖺ 2 ᭶ 1㹼6 ᪥.
࣭ ᮧୖ ᑦ ࠊ኱㛵 ኱㍜ࠊἙᮏ ┤ဢࠊ⇃㇂⩏┤ࠊ⧴⧭᫂ࠊTHVPE ἲ࡟ࡼࡿ III ᪘❅໬≀༙ᑟయ⤖ᬗᡂ㛗ࡢ㐍ᒎ㸪᪥ᮏ⤖ᬗᡂ㛗Ꮫ఍ࢼࣀᵓ㐀࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗ศ⛉఍ࢩ࣏ࣥࢪ࣒࢘㸪THVPE ἲ࡟ࡼࡿ III ᪘❅໬≀༙ᑟయ⤖ᬗᡂ㛗ࡢ㐍ᒎ, ኱㜰኱Ꮫ㸪2019ᖺ 10 ᭶ 30 ᪥㹼11 ᭶ 1 ᪥.
㸺⏘ᴗ㈈⏘ᶒ㸼≉࡟࡞ࡋࠋ164ู⣬ᵝᘧ㸰㸫㸰

SiC ⤖ᬗෆࡢᇶᗏ㠃㌿఩㐠ືไᚚ
Motion control of basal plane dislocations in SiC crystalsຍ⸨ṇྐ࣭ྡྂᒇᕤᴗ኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵᏱ἞ཎᚭ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ᩍᤵཎ⏣ಇኴ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ࣭ㅮᖌ 㸯㸬◊✲┠ⓗ SiC ⤖ᬗ࡟ࡼࡿࣃ࣮༙࣡ᑟయ⣲Ꮚࡣࠊ㟁㌴࡞࡝ࡢ㥑ື᫬ࡢ┬࢚ࢿࢆᐇ⌧ࡍࡿ࣮࢟ࢹࣂ
࢖ࢫ࡜ࡋ࡚ᮇᚅࡉࢀ࡚࠾ࡾࠊᬑཬࡀጞࡲࡗ࡚࠸ࡿࠋࡲࡓ୍᪉࡛ SiC ࡢ࣏ࢸࣥࢩࣕࣝࢆ⪃៖ࡍࡿ࡜ࠊࡉࡽ࡞ࡿ┬࢚ࢿຠᯝࢆ᭷ࡍࡿࠊ㟁ຊ⣔⤫ྥࡅࡢࣃ࣮༙࣡ᑟయ⣲Ꮚ࡬ࡢᛂ⏝ࡀᮇᚅࡉࢀ࡚࠸ࡿࠋࡓࡔࡋ SiC ⤖ᬗ୰ࡢ㌿఩ᐦᗘࡣ Si ⤖ᬗ࡟ẚ࡭࡚㧗ࡃࠊࡑࡢᙳ㡪࡛⣲Ꮚࡢಙ㢗ᛶࡀ༑ศ࡟☜ಖ࡛ࡁ࡚࠸࡞࠸ࠋ㌿఩ࡢ୰࡛ࡶ≉࡟ᇶᗏ㠃㌿఩ࡣ⣲Ꮚࡢືస୰࡟
㐠ືࡋ✚ᒙḞ㝗ࢆᗈࡆࠊᗈࡀࡗࡓ✚ᒙḞ㝗ࡀ⣲Ꮚࡢᛶ⬟ࢆຎ໬ࡉࡏࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿࠋ✚ᒙḞ㝗ࡢᣑᙇ࡜࠸࠺ㄢ㢟ࡣࠊ㟁ຊ⣔⤫࡟ᚲせ࡜࡞ࡿ⪏ᅽᩘ kV ௨ୖࡢ⣲Ꮚ࡟ᑐࡋ࡚ࠊ⮴࿨ⓗ࡞ᙳ㡪ࢆ୚࠼ࡿࠋࡋࡓࡀࡗ࡚㌿఩ࡢ㐠ືࢆᢚไࡋࠊ⣲Ꮚࡢಙ㢗ᛶࢆ☜ಖࡍࡿᢏ⾡ࡀồࡵࡽࢀ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊᇶᗏ㠃㌿఩ࡢ㐠ືࡢᶵᵓࢆ⌮ゎࡋࠊࡑࡢไᚚᢏ⾡ࢆ☜❧ࡍࡿࠋࡑࢀ࡟ࡼࡾ᭱⤊ⓗ࡟ࠊ✚ᒙḞ㝗ࡢᣑᙇ࡟ࡼࡿ⣲Ꮚຎ໬ࡢ࡞࠸ SiC ⤖ᬗࢆᚓࡿࠋᮏ◊✲࡟ࡼࡾ SiC ⤖ᬗࡢ✚ᒙḞ㝗ࡢᣑᙇࡀᢚไ࡛ࡁࢀࡤࠊSiC ⣲Ꮚ࡟ࡼࡿ┬࢚ࢿࣝࢠ࣮ᢏ⾡ࡢᐇ⌧࡟⧅ࡀࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ヨᩱࡣࠊࣂࣝࢡ 4H-SiC <1-100>᪉ྥ࡟㸲ᗘ࢜ࣇࡉࡏࡓ㸦0001㸧㠃ᇶᯈ࡟⭷ཌ 10 Pmࠊ
ࢻ࣮ࣆࣥࢢ⃰ᗘ 1016 cm-3 ࡢ 4H-SiC ࢚ࣆ⭷ࢆᡂ㛗ࡉࡏࡓ࢙࢘ࣁ࠿ࡽ࢝ࢵࢺࡋࡓ㸰ࡘࡢࣆ࣮ࢫ࡛࠶ࡿࠋ୍ࡘࡢࣆ࣮ࢫࡣᮍฎ⌮ࡢࡲࡲࠊࡶ࠺୍ࡘࣆ࣮ࢫ࡟ࡣ୙⣧≀ࢆពᅗⓗ࡟ᑟධࡋࡓࠋࡑࢀࡽࡢࣆ࣮ࢫෆࡢᇶᗏ㠃㌿఩ࡢᏑᅾࡍࡿ఩⨨࡟ᑐࡋ࡚ࠊ⣸እග(UV)ࢆ↷ᑕࡍࡿࡇ࡜࡛㟁ᏊṇᏍᑐࢆᑟධࡋࠊᇶᗏ㠃㌿఩ࢆ㐠ືࡉࡏࡓࠋUV ↷ᑕ๓ᚋ࡟࠾࠸࡚ X ⥺ࢺ࣏ࢢࣛࣇ࢕ほᐹࢆࡍࡿࡇ࡜࡟ࡼࡾᇶᗏ㠃㌿఩ࡢ㐠ືࢆㄪᰝࡋࡓࠋX ⥺ࢺ࣏ࢢࣛࣇ࢕ࡢ᮲௳ࡣࠊᅇᢡゅ 2ȟ㸸100.9rࠊᅇᢡ㠃㸸(11-28)ࠊX ⥺࢚ࢿࣝࢠ࣮㸸8.25~8.29 keVࠊධᑕゅ㸸
11.2rࡢ཯ᑕ᮲௳࡛࠶ࡿࠋࡇࡢ᮲௳࡛ࡣ୺࡟࢚ࣆ⭷࡟࠾ࡅࡿ㌿఩ࡢࡳࢆほᐹ࡛ࡁࡿࠋ཯
ᑕ X ⥺ࡣཎᏊ᰾஝ᯈ࡟ࡼࡾ᧜ᙳࡋࡓࠋ ᅗ㸯࡟ᮍฎ⌮ࡢヨᩱ࡟ᑐࡋ࡚ࠊ100Υ࡟࠾࠸࡚Ἴ㛗 365 nmࠊᙉᗘ 10 W/cm2 ࡢගࢆ↷ᑕࡋࡓ๓ᚋࡢ X ⥺ࢺ࣏ࢢࣛࣇ࢕ീࢆ♧ࡍࠋ୰ኸ௜㏆࡟Ꮡᅾࡍࡿᇶᗏ㠃㌿఩ࡀ᫬㛫࡜࡜ࡶ࡟㐠ືࡋࠊึᮇࡣ┤⥺ࡢ㌿఩࡛࠶ࡗࡓࡶࡢࡀ୕ゅᙧࡢ✚ᒙḞ㝗࡬࡜ᗈࡀࡗ࡚࠸ࡿࡇ࡜
ࡀ☜ㄆࡉࢀࡓࠋ ୍᪉࡛ᅗ㸰࡟♧ࡍࡼ࠺࡟ࠊ୙⣧≀ࢆᑟධࡋࡓヨᩱ࡟ᑐࡋ࡚ྠᵝࡢ᮲௳࡛㸰᫬㛫ࡢ UV
ࢆ↷ᑕࡋ࡚ࡶࠊᇶᗏ㠃㌿఩ࡢᙧ≧ࡣኚ໬ࡋ࡞࠿ࡗࡓࠋࡋࡓࡀࡗ࡚ࠊ୙⣧≀ᑟධ࡟ࡼࡾᇶ

165

ᗏ㠃㌿఩ࡢ㐠ືࢆᢚไ࡛ࡁࡓࡇ࡜ࡀࢃ࠿ࡗࡓࠋ㠀බ㛤㻌ᅗ㸯 ᮍฎ⌮ࡢヨᩱ࡟ᑐࡋ࡚ UV ࢆ↷ᑕࡋࡓ๓ᚋࡢ X ⥺ࢺ࣏ࢢࣛࣇ࢕ീ
㉥⥺࡛ᅖࢇࡔ㒊ศ࡟Ꮡᅾࡍࡿᬯ⥺ࡀ┤⥺࠿ࡽ୕ゅᙧ࡬࡜ᙧ≧ࡀኚ໬ࡋ࡚࠸ࡿࠋ㠀බ㛤㻌ᅗ㸰 ୙⣧≀ࢆᑟධࡋࡓヨᩱ࡟ᑐࡋ࡚ UV ࢆ↷ᑕࡋࡓ๓ᚋࡢ X ⥺ࢺ࣏ࢢࣛࣇ࢕ീ
㉥⥺࡛ᅖࢇࡔ㒊ศ࡟Ꮡᅾࡍࡿᬯ⥺ࡢᙧ≧ࡣኚ໬ࡋ࡚࠸࡞࠸ࠋ ⌧ᅾࡇࡢᡂᯝࢆᇶ࡟ࠊ≉チฟ㢪ࢆ‽ഛ୰࡛࠶ࡿࠋࡇࡢᡂᯝࡣ SiC ⣲Ꮚࡢస〇ࢥࢫࢺపῶ࡟⧅ࡀࡾࠊSiC ⣲Ꮚ࡟ࡼࡿ┬࢚ࢿࣝࢠ࣮ᢏ⾡ࡢᬑཬࢆຍ㏿ࡍࡿ࡜⪃࠼ࡽࢀࡿࠋ

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺⏘ᴗ㈈⏘ᶒ㸼≉チ⏦ㄳ‽ഛ୰

166ู⣬ᵝᘧ㸰㸫㸰ࢼࣀࢫࢣ࣮ࣝ࿘ᮇᵓ㐀ࢆ᭷ࡍࡿ⮬↛㉸᱁Ꮚ㓟໬ࢳࢱࣥࡢ⇕㍺㏦≉ᛶホ౯
Evaluation of thermal conductivity of natural superlattice titanium oxideඵᮌ ㈗ᚿ ⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ ୺௵◊✲ဨཎ⏣ ಇኴ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱ࣭ࢩࢫࢸ࣒◊✲ᡤ ㅮᖌ
ᑠᆏ ┤㍤ ྡྂᒇ኱Ꮫ ᕤᏛ◊✲⛉ಟኈᏛ⏕㸯㸬◊✲┠ⓗ㏆ᖺࠊ⇕ఏᑟࡢ㧗ᗘ࡞ไᚚࢆ┠ᣦࡋࠊࣇ࢛ࣀࢽࢵࢡ⤖ᬗࡢ◊✲ࡀ⾜ࢃࢀ࡚࠸ࡿࠋࣇ࢛
ࣀࢽࢵࢡ⤖ᬗ࡜ࡣࠊᙎᛶ⋡ࡢ࿘ᮇⓗኚㄪࢆྵࡴࢼࣀᵓ㐀యࡢࡇ࡜࡛࠶ࡾࠊᚤ⣽ຍᕤ࡟ࡼࡾసࡽࢀࡓࣇ࢛ࣀࢽࢵࢡ⤖ᬗ࡛ࡣࠊ100 nm ⛬ᗘࡢ࿘ᮇᵓ㐀࡟ࡼࡾࠊ1~100 GHz ࡢప࿘Ἴᩘᖏࡢࣇ࢛ࣀࣥࣂࣥࢻࢆไᚚࡍࡿࡇ࡜ࡀ࡛ࡁࡿࠋࡇࢀࡲ࡛࡟ࣇ࢛ࣀࢽࢵࢡ⤖ᬗ࡟ࡼࡾࠊ
4 K ࡟࠾࠸࡚⇕ఏᑟࡀపୗࡍࡿࡇ࡜ࡀሗ࿌ࡉࢀ࡚࠾ࡾࠊἼືᛶࢆ฼⏝ࡋࡓ⇕ఏᑟไᚚࡀᐇドࡉࢀ࡚࠸ࡿ[1]ࠋᐊ

࡟࠾࠸࡚ࠊࣇ࢛ࣀࢽࢵࢡ⤖ᬗ࡟ࡼࡿ⇕ఏᑟไᚚࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣࠊࡼࡾ▷࠸࿘ᮇᵓ㐀࡟ࡼࡗ࡚㧗࿘Ἴᩘࡢࣇ࢛ࣀࣥࡢ⇕ఏᑟࢆᢚไࡋࠊࣇ࢛ࣀࢽࢵ
ࢡ⤖ᬗ࡛ไᚚ࡛ࡁࡿప࿘Ἴᩘࡢࣇ࢛ࣀࣥࡀ⇕ఏᑟࢆᢸ࠺ᮦᩱࡀᚲせ࡜࡞ࡿ[2]ࠋࡑࡇ࡛
ᡃࠎࡣࠊ࿘ᮇⓗ࡞㠃Ḟ㝗ࢆྵࡴ Magneli ┦㓟໬ࢳࢱࣥ(TiO 2-į )࡟╔┠ࡋࡓࠋMagneli ┦㓟໬ࢳࢱࣥࡣࠊ㓟⣲Ḟᦆ㔞࡟ࡼࡗ࡚㠃Ḟ㝗ࡢ࿘ᮇࢆኚ໬ࡉࡏࡿࡇ࡜ࡀྍ⬟࡛࠶ࡾࠊ᏶඲ᛶ
ࡢ㧗࠸࿘ᮇᵓ㐀ࢆ᭷ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗ࡚࠸ࡿ[3,4]ࠋᮏ◊✲࡛ࡣ㓟໬ࢳࢱࣥ࡬ࡢ࿘
ᮇⓗ࡞㠃Ḟ㝗ᑟධ࡟క࠺⇕ఏᑟ⋡ࡢᗘኚ໬࡟ࡘ࠸࡚ㄪ࡭ࡓࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ
ᐃ࡟ࡣࠊ࣋ࣝࢾ࣮࢖ἲ࡟ࡼࡾస〇ࡉࢀࡓࣝࢳࣝᆺ༢⤖ᬗ TiO 2 ࡜ࠊࡑࢀࢆ┿✵୰࡛
FZ ἲ࡟ࡼࡾస〇ࡋࡓ⤖ᬗ(Ti 6 Cr 2 O 15 )
1300Υࠊ
24 ᫬㛫ࡢ㑏ඖ⇕ฎ⌮ࢆ⾜ࡗࡓ⤖ᬗ(TiO 2-į )ࠊ
ࢆ⏝࠸ࡓࠋ㠃Ḟ㝗࿘ᮇࡣࠊTiO 2-į ࡀ 2.7 nmࠊTi 6 Cr 2 O 15 ࡀ 0.951 nm ࡜ሗ࿌ࡉࢀ࡚࠸ࡿ[3]ࠋ
ࡑࢀࡒࢀࡢ⤖ᬗ࡟ࡘ࠸࡚᫬㛫ศゎࢧ࣮ࣔࣜࣇࣞࢡࢱࣥࢫἲ࡟ࡼࡾ⇕ఏᑟ⋡ࢆ[100] rutile ࡟ࡘ࠸࡚ࡣ -150Υ ࠿ࡽ 300Υࡲ࡛ࡢ ᗘ౫Ꮡᛶࢆ

ᐃࡋࡓࠋ

ᐃࡋࡓࠋ

࣋ࣝࢾ࣮࢖ἲ࡟ࡼࡾస〇ࡉࢀࡓࣝࢳࣝᆺ TiO 2 ༢⤖ᬗ࡜ࠊ┿✵୰࡛ 1573K, 24h ࡢ㑏ඖ⇕ฎ⌮ࢆ⾜࠸ 2.65~3.05 nm ࡢ࿘ᮇ࡛㠃Ḟ㝗ࡀᑟධࡉࢀࡓ㓟໬ࢳࢱࣥ⤖ᬗ㸦TiO 2-į : į =0.036 ~ 0.038㸧ࡢ⇕ఏᑟ⋡ࢆࠊ᫬㛫ศゎࢧ࣮ࣔࣜࣇࣞࢡࢱࣥࢫἲ࡟ࡼࡾ ᐃࡋࡓࠋ[100] rutile ࡟࠾ࡅࡿ -150Υ~300Υ ࡢ⇕ఏᑟ⋡ࡢᐃࡋࡓ⤖ᯝࠊTiO 2 ࡣ ᗘୖ᪼࡟క࠸⇕ఏᑟ⋡ࡀపୗࡍࡿࡢ࡟ᑐࡋࠊTiO 2-į , Ti 6 Cr 2 O 15 ࡣᗘ౫Ꮡᛶࡀᑠࡉࡃࠊ300Υ ࡟࠾࠸࡚ TiO 2 ࡟₞㏆ࡍࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࡇࢀࡣᖹᆒ⮬⏤⾜⛬ࡢ▷࠸ࣇ࢛ࣀࣥࡀ
⇕ఏᑟ࡟ᑐࡋᨭ㓄ⓗ࡜࡞ࡾࠊ㠃Ḟ㝗ࡢᙳ㡪ࡀ⾲ࢀ࡚࠸࡞࠸ࡓࡵ࡜⪃࠼ࡽࢀࡿࠋ-100Υ࡟࠾ࡅࡿ㠃Ḟ㝗ᐦᗘ࡜⇕ఏᑟ⋡ࡢ㛵ಀࢆぢࡿ࡜ࠊ⇕ఏᑟ⋡ࡣ㠃Ḟ㝗ᐦᗘ࡟ᑐࡋ࡚ᴟᑠࢆ♧ࡍࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋࣇ࢛ࣀࣥࡢ⢏Ꮚⓗ࡞ຠᯝࡢࡳ⪃៖ࡋࠊ㠃Ḟ㝗ᐦᗘࡢቑຍ࡟క
࠸ቃ⏺ᩓ஘ࡶቑຍࡍࡿࣔࢹ࡛ࣝ࠶ࡿࠊDebye-Callaway ࣔࢹࣝ࡜ẚ㍑ࡍࡿ࡜ࠊ⇕ఏᑟ⋡ࡢィ⟬್ࡣࠊ㠃Ḟ㝗ᐦᗘ࡟ᑐࡋ࡚༢ㄪ࡟ῶᑡࡍࡿࠋࡇࢀࡽࡢ⤖ᯝ࠿ࡽࠊ㠃Ḟ㝗ࡢ࿘ᮇ㓄ิ

167

࡟ࡼࡾࠊ⢏Ꮚⓗ࡞ᥥീ࡜ࡣ␗࡞ࡿࠊἼືⓗ࡞ຠᯝࡀ㢧ᅾ໬ࡋ࡚࠸ࡿࡇ࡜ࡀ♧၀ࡉࢀࡓࠋཧ⪃ᩥ⊩[1] J. Maire et al., Sci. Adv., 3 (2017) e1700027.
[2] M. Maldovan, Phys. Rev. Lett., 110 (2013) 025902.
[3] S. Harada. et al., The 65th JSAP spring meeting (2018) 20a-C304-5.
[4] S. Harada et al., J. Appl. Phys., 108 (2010) 083703.
[5] J. Callaway, Phys. Rev., 113 (1956) 1046.

࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜ㝿࣭ᅜෆ఍㆟㸼
“Thermal Conduction in Titanium Oxide with an Ordered Arrangement of Planar Faults in
Nanoscale”,
Shunta Harada, Naoki Kosaka, Takashi Yagi, Katsushi Tanaka, Haruyuki Inui, Toru Ujihara
MRS Spring Meeting & Exhibit (2019), QN04.12.03.
“Thermal Conduction in Magneli Phase Titanium Oxides with an Ordered Arrangement of
Planar Faults in Nanoscale”,
Shunta Harada, Naoki Kosaka, Takashi Yagi, Katsushi Tanaka, Haruyuki Inui, Toru Ujihara
ICMaSS2019 (2019), A3-II-7.
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භ᪉ᬗ⣔䛾 㻿㼕㻯 䜔 㻳㼍㻺 ⤖ᬗ䛿 㼏 㠃䛷䛾䝇䝔䝑䝥䛾✚䜏㔜䛺䜚䛷ᡂ㛗䛩䜛䚹
D䛭䛾䝇䝔䝑䝥䛿༢ศᏊ䛛䜙ከᒙ䛾䝇䝔䝑䝥䛷ᵓᡂ䛥䜜䛶䛔䜛䚹䠏ḟඖⓗ䛺䝞䝹䜽䛾⤖ᬗ䛾ᑐ⛠䠄㻳㼍㻺㻦㻌 ✵㛫⩌㻌 㻼㻢㻟㼙㼏䠅䛿䠒ᅇᑐ⛠䛷䛒䜛䛜䚸ಶ䚻䛾༢ศᏊ䝇䝔䝑䝥䛾ᑐ⛠䛿୕ᅇᑐ⛠䛷䛒䜛䛣䛸䛻ὀព䜢ᡶ䛖ᚲせ䛜䛒䜛䚹䛭䛾䛯䜑䚸㻳㼍㻺 䜔㻿㼕㻯 ⤖ᬗ䛾 㼏 㠃ୖ䛷䛾ᡂ㛗䝇䝔䝑䝥䛿 㻟 ᅇᅇ㌿ᑐ⛠䛾⤌䜏ྜ䜟䛫䛾ᙧែ䛜⌧䜜䜛㼇㻝㼉䚸ᅗ䠍䚹䛣䛾ᙧែ䛿䜲䞁䝍䞊䝺䞊䝅䞁䜾䠄⥤⧊ᶍᵝ䠅䛸䛧䛶▱䜙䜜䛶䛚䜚䚸ᅗ䛛䜙ศ䛛䜛䜘䛖䛻䚸᪉ྥ䛻䜘䛳䛶༢ศᏊ䝇䝔䝑䝥䛸䛧䛶ᡂ㛗䛩䜛᪉ྥ䠄㻿䠅䛸ᅗ 1 ࢖ࣥࢱ࣮࣮ࣞࢩࣥࢢ㻞 ᯛ㔜䛺䛳䛶ᡂ㛗䛩䜛᪉ྥ㻔㻰㻕䛻ศ䛛䜜䜛䚹䛭䛾䛯䜑䚸䛭䛾᪉ྥ䛻䜘䛳䛶䝇䝔䝑䝥䝣䝻䞁䝖䛾ᵓ㐀䛜␗䛺䜚⤖ᬗ䛾୙ᆒ୍ᛶ䛻ᙳ㡪䜢୚䛘䜛䚹㻌 ᫖ᖺᗘ䛻 㻿㼕㻯 ヨᩱ䜢฼⏝䛧䛶 㼄㻙⥺䝖䝫䜾䝷䝣䛸᪂䛧䛟㛤Ⓨ䛧䛯ගᏛ⿦⨨䠄ගᏛ୺㍈ศᕸ⿦⨨䠅䛾ẚ㍑䜢⾜䛳䛯䚹௒ᖺᗘ䛿ྠᵝ䛾᪉ἲ䜢䝣䝷䝑䜽䝇䜔䜰䝰䝜䝃䞊䝬䝹ἲ䛷ᡂ㛗䛧䛯 㻳㼍㻺 ⤖ᬗ㻌 䛻㐺⏝䛧䛶䚸ᡂ㛗䛻㉳ᅉ䛩䜛⤖ᬗ䛾୙ᆒ୍ᛶᅗ 2 GaN ࡢᡂ㛗ୣ

ᅗ 3 AFM ࡟ࡼࡿ࢖ࣥࢱ࣮ 䛾ཎᅉ䜢᥈䜛䛣䛸䛻䛧䛯䚹≉䛻䚸㓟⣲䛾ᯒฟ䛸ᛮ࣮ࣞࢩࣥࢢࡋࡓࢫࢸࢵࣉ [2]169

䜟䜜䜛䜹䝋䞊䝗䝹䝭䝛䝑䝉䞁䝇ീ䚸⤖ᬗ⾲㠃䛾ᡂ㛗䝇䝔䝑䝥䝎䜲䝘䝭䝑䜽䝇䚸⤖ᬗෆ㒊䛾ගᏛ୺㍈ศᕸ䛸䛾㛵ಀ䜢୺║䛻䛚䛔䛯䚹㻌ᅗ 㻞 䛿䝬䜽䝻䛺ගᏛほᐹ䛻䜘䜛ᡂ㛗ୣ䚸ᅗ 㻟 䛻䛿䛭䛾୰ᚰ㒊䜢ᣑ኱䛧䛯 㻭㻲㻹ീ䠄ྠ୍⤖ᬗ䛷䛿䛺䛔䠅䜢♧䛧䛯䚹䝬䜽䝻䛺ほᐹ䛻䜘䜛ᡂ㛗䝇䝔䝑䝥䛿䚸୍ぢ䚸⤖ᬗ䛾✵㛫⩌䛛䜙ᮇᚅ䛷䛝䜛䠒ᅇᑐ⛠䜢♧䛧䛶䛔䜛䜘䛖䛷䛒䜛䛜䚸ᣑ኱䛩䜛䛸 㻢㻜㼻ᅇ㌿䛧䛯 㻟 ᅇᑐ⛠䛾䝇䝔䝑䝥䛜 㻞 ᯛ㔜䛺䛳䛶䛔䜛䛾䛜ศ䛛䜛䚹䛣䜜䛿ᅗ䠍䛷ㄝ᫂䛧䛯䜲䞁䝍䞊䝺䞊䝅䞁䜾䛷䛒䜛䚹ᅗ䠐䛻䛿᪂䛯䛻ほᐹᅗ 4 ⤖ᬗ୺㍈᪉఩ศᕸ

䛧䛯ගᏛ୺㍈ศᕸീ䜢♧䛧䚸䝉䜽䝍䞊ᵓ㐀䛤䛸䛻⤖ᬗ㍈᪉఩䛜␗䛺䛳䛶䛔䜛䛣䛸䜢♧䛧䛶䛔䜛䚹㻌䛣䛾䝇䝔䝑䝥䛾㧗䛥䛾㐪䛔䛻㉳ᅉ䛩䜛䛸ᛮ䜟䜜䜛⤖ᬗ䛾䝉䜽䝍䞊ᵓ㐀䛿⯆࿡῝䛔䚹ᅗ 㻡 䛻䛿䝉䜽䝍䞊≧䛻⌧䜜䜛㓟⣲䚸䛒䜛䛔䛿䛭䜜䛻௜㝶䛧䛯ⅬḞ㝗䛾ศᕸ䜢♧䛧䛯䚹䛣䛾䝟䝍䞊䞁䛿ᅗ 㻝 䛻♧䛧䛯䜲䞁
ᅗ 5 㓟⣲୙⣧≀ศᕸ㸦㜰኱ࠊ௒すࡽ࡟ࡼࡿ㸧䝍䞊䝺䞊䝅䞁䜾䛾 㻿 ᪉ྥ䛸 㻰 ᪉ྥ䛻㉳ᅉ䛩䜛䝟䝍䞊䞁䛻ṇ☜䛻ᑐᛂ䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹㻌⤖ㄽ䠖⤖ᬗ䛾ෆ㒊ᵓ㐀䛾୙ᆒ୍ᛶ䛜䚸㼏 㠃䛷䛾ᡂ㛗䝇䝔䝑䝥䛾㧗䛥䛻㉳ᅉ䛩䜛䛸䛔䛖᪂䛧䛔⤖ᯝ䛜ᚓ䜙䜜䛯䚹䛣䜜䛿ᡂ㛗䝇䝔䝑䝥䝣䝻䞁䝖䛾ཎᏊ䝺䝧䝹䛷䛾䇾Ⲩ䜜䇿䛾㐪䛔䛻䜘䛳䛶୙⣧≀䜔ⅬḞ㝗䛾ྲྀ䜚㎸䜏䛛䛯䛜㐪䛖䛯䜑䛸⪃䛘䜙䜜䚸௒ᚋ䚸䝇䝔䝑䝥䛾䝎䜲䝘䝭䜽䝇䛾◊✲䛜ᚲせ䛷䛒䜛䚹᭦䛻䚸ⅬḞ㝗䛾ศᕸ䛾ཎᅉ䛜䜟䛛䛳䛯䛾䛷䚸䛣䛾✀䛾䝉䜽䝍䞊ᵓ㐀䜢ᢚ䛘㎸䜐᪉ἲ䜒ணぢ䛷䛝䜛䚹㻌㼇㻝㼉㻌 㻌 9DQ GHU KRHN % 9DQGHUHHUGHQ - 3  7VXNDPRWR .   ,17(535(7$7,21 2) '28%/( 63,5$/6 21
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171

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6%(35>NMkChmQ9  4 +**'+ )Ő¶$Ÿ÷¨ş$ 6%9ń ) ēƁo(Þé7  AbWGL)ÍƎ5Ƙ·Ơ5ơįæ*¹
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EmQQekHIL(ŭ476 Ƙ·)GYQ (Ïå# 6 $ÖŴú) 5 įæ(*Â'XIOfGI3+®ġöõŭ47ƟÎÚ)ķƙĩ|È¸6%9ń²6Ŕč9ânû >NMkC$ÖŴ
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9śèū )  ) AbWGL  įæ(! #Ìƞ%ıźů
ŏ9ĝžŔč ÖŴú$*ķƙĩ|ÎÚƤďzo¾Â# 6%ń²7ķƙĩ|)ĲéŬµ%#ķƙ$)ŔĀqƂŘæ4VkR)Ɨq ('6%ZiKIÿ)Öñ (35ĹĲŋœŉÇŎĘƓĩ|%#,6/ %'&ï476 Ö(35Öƙ)Ūƙa\iHm)
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Mƙ(Þé  AbWGL)Ƙğĺįæ9þ4(6ůĶ$ 6


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(!'172ู⣬ᵝᘧ㸰㸫㸰ከගᏊບ㉳㐣⛬ࢆ⏝࠸ࡓ GaN ⤖ᬗࡢ㠀◚ቯほᐹ࣭ゎᯒᢏ⾡
Nondestructive Characterization of GaN Crystals Based on Multiple-Excitation process㇂ᕝᬛஅ࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭෸ᩍᤵ∦ᒣ❳஧࣭኱㜰኱Ꮫ࣭኱Ꮫ㝔ᕤᏛ◊✲⛉࣭ᩍᤵᑠᓥ୍ಙ࣭ᮾ໭኱Ꮫ࣭ከඖ≀㉁⛉Ꮫ◊✲ᡤ࣭෸ᩍᤵ
ሯ㉺┿ᝆᏊ࣭኱㜰኱Ꮫ࣭ᕤᏛ㒊࣭Ꮫ㒊⏕ฟ᮶┿ᩯ࣭ྡྂᒇ኱Ꮫ࣭ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ࣭ຓᩍ㸯㸬◊✲┠ⓗ GaN ࢆ⏝࠸ࡓపⅣ⣲♫఍ᐇ⌧࡟ྥࡅ࡚㸪ప࢜ࣥ᢬ᢠ࠿ࡘ㧗⪏ᅽࡢ GaN ⦪ᆺࢺࣛࣥࢪ
ࢫࢱࡸ㸪ศᴟࡢᛶ㉁ࢆά࠿ࡋࡓᨃఝ఩┦ᩚྜᆺ GaN Ἴ㛗ኚ᥮⣲Ꮚࡢ㛤Ⓨࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬ࡇࢀࡽࡢࢹࣂ࢖ࢫࢆᐇ⌧ࡍࡿࡓࡵ࡟ࡣ㸪ࢹࣂ࢖ࢫෆ㒊ࡢ⏺㠃ࡸḞ㝗࡞࡝ࡢᛶ㉁ࢆ
ࡼࡃ⌮ゎࡋ㸪ࢹࣂ࢖ࢫᛶ⬟ࢆ⬣࠿ࡍḞ㝗ࢆ≉ᐃࡋ࡞ࡀࡽࢹࣂ࢖ࢫస〇ࢆ㐍ࡵࡿᚲせࡀ࠶ࡿ㸬ᮏ◊✲࡛ࡣ㸪⏦ㄳ⪅ࡀࡇࢀࡲ࡛࡟ᵓ⠏ࡋࡓከගᏊບ㉳ࣇ࢛ࢺ࣑ࣝࢿࢵࢭࣥࢫࢆᛂ⏝ࡋ࡚㸪ࢹࣂ࢖ࢫ῝㒊ࡢ PL ᑑ࿨ࡸග㟁ὶ≉ᛶࢆホ౯ࡋࡓ㸬㸰㸬◊✲ෆᐜ࡜ᡂᯝ
 ㈏㏻㌿఩ࡀⓎගᑑ࿨࡟ཬࡰࡍᙳ㡪ࢆㄪ࡭ࡿࡓࡵ࡟ࠊከගᏊບ㉳㐣⛬ࢆ฼⏝ࡋࡓ᫬㛫ศゎᐃࢆ⾜ࡗࡓࠋヨᩱࡣ HVPE ᡂ㛗ࡋࡓ c 㠃 GaN ᇶᯈࢆ⏝࠸ࡓࠋࡲࡎࠊࣂࣥࢻ➃㏆ഐ

Ⓨගࡢ୕ḟඖ࣐ࢵࣉ

ᐃࢆ⾜࠸ࠊ㌿఩ࡢ୕ḟඖ఩⨨ࢆ≉ᐃࡋࡓࠋḟ࡟↔Ⅼ఩⨨ࢆ῝ࡉ

40 μm ࡜ࡋࠊᬯⅬ୰ᚰ࡜ᬯⅬ࠿ࡽ༑ศ࡟㞳ࢀࡓ↓㌿఩㡿ᇦࡢ PL ᑑ࿨ࢆ ᐃࡋࡓࠋ⤖ᯝ
ࢆᅗ 1 ࡟♧ࡍࠋⓎගᙉᗘࡀ 1/e ࡟ῶ⾶ࡍࡿࡲ࡛ࡢ᫬㛫ࢆᑑ࿨࡜ᐃ⩏ࡍࡿ࡜ࠊᬯⅬ୰ᚰ࡛
ࡣ 2.0 ns ࡛↓㌿఩㡿ᇦ࡛ࡣ 4.8 ns ࡔࡗࡓࠋࡇࡢ㐪࠸ࡣࠊ㈏㏻㌿఩ࡀ㠀㍽ᑕ෌⤖ྜࡢᛶ㉁ࢆ♧ࡍࡇ࡜࡟㉳ᅉࡍࡿࠋ῝㒊ࡢ ᐃࡀ࡛ࡁࡿࡇ࡜࠿ࡽࠊከගᏊບ㉳ࣇ࢛ࢺ࣑ࣝࢿࢵࢭࣥ
ࢫἲ࡛ࡣ⾲㠃෌⤖ྜࡢᙳ㡪ࢆཷࡅࡎ࡟ᑑ࿨ࡢホ౯ࡀ࡛ࡁࡿぢ㏻ࡋࡀᚓࡽࢀࡓࠋ
ࡲࡓࠊGaN pn ⦪ᆺࢲ࢖࣮࢜ࢻ࡟ p ᆺ GaN ഃ࠿ࡽ࣮ࣞࢨࢆ㞟ග↷ᑕࡋࠊ✵ஈᒙࢆྵࡴ
㡿ᇦࢆከගᏊບ㉳ࡉࡏࠊⓎ⏕ࡍࡿග㟁ὶࢆᐃࡋࡓࠋࡲࡎࠊ㏫ࣂ࢖࢔ࢫ㟁ᅽࢆ༳ຍࡋ࡞ࡀࡽບ㉳῝ࡉ࡜ග㟁ὶࡢ㛵ಀࢆㄪ࡭ࡓࠋᅗ 2(a)࡟ග㟁ὶࡢບ㉳῝ࡉ౫Ꮡᛶࢆ♧ࡍࠋ✵ஈᒙ࡜ᛮࢃࢀࡿ㡿ᇦ࡛ග㟁ὶࡀⓎ⏕ࡋࡓࠋ㏫ࣂ࢖࢔ࢫ㟁ᅽࡢቑຍ࡜࡜ࡶ࡟✵ஈᒙࡀ῝ࡉ᪉ྥ࡟ఙ

↓㌿఩㡿ᇦ㻌
㌿఩୰ᚰ㻌ࡧࠊࡑࢀ࡟࡜ࡶ࡞࠸ග㟁ὶࡀⓎ⏕ࡍࡿ㡿ᇦࡀᣑ኱ࡍࡿ⤖ᯝࡀᚓࡽࢀࡓࠋḟ࡟ࠊࢮࣟࣂ࢖࢔
ࢫୗ࡛ບ㉳఩⨨ࢆ୕ḟඖ㉮ᰝࡋࠊග㟁ὶࡢ୕ḟඖ࣐ࢵࣉᐃࢆ⾜ࡗࡓࠋග㟁ὶಙྕࡢ yz ീ173ᅗ 㻝㻌 ㌿఩୰ᚰ䛸㌿఩䛛䜙༑ศ㞳䜜䛯㡿ᇦ䛾 㻼㻸 ᫬㛫ῶ⾶≉ᛶ㻌ࢆᅗ 2(b)࡟♧ࡍࠋᒁᡤⓗ࡟ග㟁ὶࡀቑຍࡋࡓ㡿ᇦ࡜ῶᑡࡋࡓ㡿ᇦࡀࡳࡽࢀࡓࠋග㟁ὶࡀῶᑡࡋࡓ㡿ᇦࡣ㌿఩ࡢ఩⨨࡟ᑐᛂࡋ࡚࠾ࡾࠊගບ㉳࢟ࣕࣜ࢔ࡀ㌿఩࡟ᤕ⋓ࡉࢀࡿࡇ࡜࡟
ࡼࡾ㟁ὶ࡜ࡋ࡚ྲྀࡾฟࡉࢀ࡞࠿ࡗࡓࡇ࡜࡟㉳ᅉࡍࡿ࡜ᛮࢃࢀࡿࠋ
௨ୖࡢ⤖ᯝࡼࡾࠊከගᏊບ㉳ࣇ࢛ࢺ࣑ࣝࢿࢵࢭࣥࢫἲࢆᛂ⏝ࡍࡿࡇ࡜࡟ࡼࡾ⤖ᬗෆ㒊ࡢ㠀㍽ᑕ෌⤖ྜᑑ࿨ࡸ✵ஈᒙࡢᛶ㉁ࢆホ౯࡛ࡁࡿࡇ࡜ࡀ♧ࡉࢀࡓࠋ
㻔㼎㻕㻌
㻔㼍㻕㻌
㼂㼎㼕㻌㻔㼂㻕㻌
䌦㻝㻥㻟
䌦㻠㻡
䌦㻥
㻜

ᅗ 2 (a) ග㟁ὶ䛾ບ㉳῝䛥౫Ꮡᛶ䚹(b) 䝊䝻䝞䜲䜰䝇᫬䛾ග㟁ὶ䛾 yz 䝬䝑䝥䚹࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚ㸺ᅜෆ఍㆟㸼
1)ሯ㉺┿ᝆᏊ, ㇂ᕝᬛஅ, ୖྥ஭ṇ⿱, ∦ᒣ❳஧, ከගᏊບ㉳ࣇ࢛ࢺ࣑ࣝࢿࢵࢭࣥࢫ
ἲ࡟ࡼࡿ HVPE-GaN ⤖ᬗ୰㈏㏻㌿఩ࡢほᐹ࡜ศ㢮, ➨ 67 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍, 12p-A307-5, ୖᬛ኱Ꮫ, 2020 ᖺ 3 ᭶ 12㹼15 ᪥.

2)ᕝᓮᬂஓ, Ᏻ⸨ᝆே, ⏣୰ᩔஅ, ሯ㉺┿ᝆᏊ, ㇂ᕝᬛஅ, ฟ᮶┿ᩯ, ஂᚿᮏ┿ᕼ, ᪂⏣ᕞ࿃, ᮏ⏣ၿኸ, ኳ㔝ᾈ, GaN ⦪ᆺ p-n ࢲ࢖࣮࢜ࢻ࡟࠾ࡅࡿ 2 ගᏊ྾཰ග㟁ὶࡢᐃ, ➨ 67 ᅇᛂ⏝≀⌮Ꮫ఍᫓ᏘᏛ⾡ㅮ₇఍, 14a-B401-7, ୖᬛ኱Ꮫ, 2020 ᖺ 3 ᭶ 12㹼
15 ᪥.

3)

ᑠᓥ୍ಙ㸪㇂ᕝᬛஅ㸪⢑㇂ᣅ⏕㸪⛛∗㔜ⱥ㸪⏣୰ᩔஅ㸪ᮏ⏣ၿኸ㸪ኳ㔝 ᾈ㸪ୖྥ஭ṇ⿱㸪∦ᒣ❳஧, ከගᏊບ㉳࡟ࡼࡿ❅໬࣒࢞ࣜ࢘⤖ᬗࡢ᫬㛫ศゎࣇ࢛ࢺ࣑ࣝࢿࢭ
ࣥࢫศග(2), ➨ 80 ᅇᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍, 19p-E310-4, ໭ᾏ㐨኱Ꮫ, 2019
ᖺ 9 ᭶ 18㹼21 ᪥.

4)㇂ᕝᬛஅ㸪ᑠᓥ୍ಙ㸪⢑㇂ᣅ⏕㸪⛛∗㔜ⱥ㸪⏣୰ᩔஅ㸪ᮏ⏣ၿኸ㸪ኳ㔝 ᾈ㸪ୖྥ஭ṇ⿱㸪∦ᒣ❳஧, ከගᏊບ㉳࡟ࡼࡿ❅໬࣒࢞ࣜ࢘⤖ᬗࡢ᫬㛫ศゎࣇ࢛ࢺ࣑ࣝࢿࢭ
ࣥࢫศග(1), ➨ 80 ᅇᛂ⏝≀⌮Ꮫ఍⛅ᏘᏛ⾡ㅮ₇఍, 19p-E310-3, ໭ᾏ㐨኱Ꮫ, 2019
ᖺ 9 ᭶ 18㹼21 ᪥.

174ู⣬ᵝᘧ㸰㸫㸰ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡿ㔠ᒓ/GaN ⏺㠃ไᚚ࡟㛵ࡍࡿ◊✲
Study about control of metal/GaN interface using femto-second laser irradiationᐩ⏣༟ᮁ ᚨᓥ኱Ꮫ ኱Ꮫ㝔♫఍⏘ᴗ⌮ᕤᏛ◊✲㒊 ෸ᩍᤵฟ᮶┿ᩯ ྡྂᒇ኱Ꮫ ᮍ᮶ᮦᩱࢩࢫࢸ࣒◊✲ᡤ ຓᩍ㸯㸬◊✲┠ⓗ పᾘ㈝࢚ࢿࣝࢠ࣮࠿ࡘ㧗ᶵ⬟ᛶ♫఍ࢆ඲ୡ⏺࡟Ώࡗ࡚ᐇ⌧ࡍࡿࡓࡵ࡟ࡣࠊ࣡࢖ࢻࢠࣕ
ࢵࣉ༙ᑟయࢆ⏝࠸ࡓపᦆኻࢹࣂ࢖ࢫࡢᐇ⌧ࡀᚲせ࡛࠶ࡿࠋࡋ࠿ࡋࠊ*D1 ➼ࢆ⏝࠸ࡓࣃ࣮࣡ࢹࣂ࢖ࢫࡣࠊࣉࣟࢭࢫᢏ⾡࣭పࢥࢫࢺ໬➼ࡢㄢ㢟ࢆᢪ࠼࡚࠸ࡿࠋᮏඹྠ฼⏝࡛ࡣࠊ࣡࢖ࢻࢠࣕࢵࣉ༙ᑟయࡀᢪ࠼ࡿㄢ㢟ࢆ࣮ࣞࢨ࣮ࣉࣟࢭࢵࢩࣥࢢ࡟ࡼࡗ࡚ゎỴࡍࡿࡇ࡜ࢆ
➨୍ࡢ┠ⓗ࡜ࡋ࡚࠸ࡿࠋ┤㏆࡟ゎỴࡍࡿ࡭ࡁㄢ㢟࡜ࡋ࡚ࠊ*D1026)(7 ࡢ S ᆺ࣎ࢹ࢕㡿ᇦ࡬ࡢ࣮࣑࢜ࢵࢡ᥋ゐࡀᣲࡆࡽࢀࡿࠋ᥋ゐ᢬ᢠࡢపῶ࡟ࡣࠊ㧗⃰ᗘ S ᆺᒙࢆᙧᡂࡍࡿᚲ
せࡀ࠶ࡿࡀࠊ
0J ࢖࢜ࣥὀධᢏ⾡ࡀᅔ㞴࡛࠶ࡿ *D1 ࡟ᑐࡋ࡚ᙧᡂࡍࡿࡢࡣ㠀ᖖ࡟㞴ࡋ࠸ࠋࡑࡇ࡛ᡃࠎࡣࠊ࣡࢖ࢻࢠࣕࢵࣉ༙ᑟయ➼ࡢ㏱᫂ᮦᩱࡀຍᕤྍ⬟࡞ࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ࢆ
1LS ᆺ *D1 ⏺㠃࡟↷ᑕࡍࡿࡇ࡜࡛ࠊ㔠ᒓ༙ᑟయ┦஫ᣑᩓᒙࢆᙧᡂࡋࠊ᥋ゐ᢬ᢠࢆపῶ
ࡉࡏࡿᢏ⾡ࢆᥦ᱌ࡍࡿࠋ

㸰㸬◊✲ෆᐜ࡜ᡂᯝ ᮏ◊✲࡛ࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕࢆ⏝࠸ࡓప᢬ᢠ࣮࣑࢜ࢵࢡ㟁ᴟస〇࡟ྲྀࡾ⤌ࢇࡔࠋࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮ගࢆSᆺ❅໬࣒࢞ࣜ࢘࡜㔠ᒓ㟁ᴟࡢ⏺㠃࡟↷ᑕࡋࠊᨵ㉁ࢆ
⏝࠸࡚1L$X㟁ᴟ࡜S*D1 ࡢ⏺㠃࡬ࡢ࣮࣑࢜ࢵࢡࢥࣥࢱࢡࢺᒙࡢᙧᡂࢆ≺ࡗࡓࠋࡇࡢ᪉ἲ࡛ࡣࠊ࣮ࣞࢨ࣮↷ᑕ㒊ࡢࡳࡀᒁᡤⓗ࡟ᨵ㉁ࡉࢀࡿࡇ࡜࠿ࡽࠊ୍⯡ⓗ࡞࢖࢜ࣥὀ
ධ࡜⇕ฎ⌮ࢆ⤌ࡳྜࢃࡏࡓ᪉ἲࡼࡾࡶ⤖ᬗ࡟ཬࡪࢲ࣓࣮ࢪ⠊ᅖࡀ⊃࠸Ⅼ࡛ඃ఩ᛶࡀ࠶
ࡿࠋࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕࢆ⏝࠸࡚స〇ࡋࡓ㟁ᴟ࡟ࡘ࠸࡚ࠊ㟁ὶ㟁ᅽᅗ㸯 㟁ὶ㟁ᅽ ᐃࡢࣇ࢚ࣝࣥࢫ౫Ꮡᛶ

ᐃࡸఏ㏦㛗

ἲ㸦7UDQVIHU/HQJWK0HWKRG7/0㸧ࠊ㟁Ꮚ㢧ᚤ㙾ീほᐹࢆ⾜࠸ࠊ㟁Ẽⓗ࣭⤖ᬗᏛⓗ≉ᛶࢆホ౯ࡋࡓࠋࡉࡽ࡟ࠊప࠸᥋ゐ᢬ᢠ⋡ࢆ┠ᣦࡋࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡜࢔ࢽ࣮ࣝ
ฎ⌮ࢆ⤌ࡳྜࢃࡏࡓ᪂ᡭἲ࡟ࡶྲྀࡾ⤌ࢇࡔࠋᅗ࡟ࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡗ࡚స〇ࡋࡓ㟁ᴟࡢ㟁ὶ㟁ᅽᐃ⤖ᯝࢆ♧ࡍࠋ

ࡇࡢ⤖ᯝ࠿ࡽࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡗ࡚㔠ᒓ㟁ᴟࡢప᢬ᢠ໬࡜࣮࣑࢜ࢵࢡ໬ࡀ

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☜ㄆࡉࢀࠊ㟁ὶ㟁ᅽ≉ᛶࡀ↷ᑕࣇ࢚ࣝࣥࢫࡢ
ୖ᪼࡜࡜ࡶ࡟ᨵၿࡉࢀࡿࡇ࡜ࡀ᫂ࡽ࠿࡜࡞ࡗࡓࠋస〇ࡋࡓ㟁ᴟࡢࢥࣥࢱࢡࢺ᢬ᢠ⋡ࡣࠊ
7/0ᐃ⤖ᯝ࠿ࡽࠊȐ࣭FP࣮࢜ࢲ࣮࡛࠶ ࡿ ࡇ ࡜ ࡀ ᫂ ࡽ ࠿ ࡟ ࡞ ࡾ ࠊ ࢩ ࣮ ࢺ ᢬ ᢠ ࡣȐ‫ࢡࢵ࣮࣋ࢮࠋࡓࡗ࠶࡛ڧ‬ຠᯝࢆ⏝࠸ࡓከᩘ࢟ࣕࣜ࢔ุᐃ࡛ࡣSᆺఏᑟࡀ☜ㄆࡉ
ࢀࡓࡀࠊYDQGHU3DXZἲࢆ⏝࠸ࡓ࣮࣍ࣝ
ᐃ࡛ࡣࠊ࢟ࣕࣜ࢔ࡢᴟᛶࡀQᆺࢆ♧ࡋࡓࠋ
㏱㐣㟁Ꮚ㢧ᚤ㙾ࡢ࢚ࢿࣝࢠ࣮ศᩓᆺ;⥺ศᯒほᐹീ㸦ᅗ㸰㸧ཬࡧไ㝈ど㔝ᅇᢡࣃࢱ࣮
ࣥ࠿ࡽࡣࠊࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ㒊࡟࠾࠸ᅗ㸰 7(0('6 ࡟ࡼࡿ࣐ࢵࣆࣥࢢ

࡚ࠊ㔠ᒓ㟁ᴟᮦᩱࡢ㔠࡜ࢽࢵࢣࣝࡢྜ㔠໬ࡀ☜ㄆࡉࢀࡓࠋ㔠̿ࢽࢵࢣࣝ⣔ྜ㔠ࡢ≧ែᅗ࠿ࡽࠊ࣮ࣞࢨ࣮↷ᑕ㒊ࡀ▐㛫ⓗ࡟Υ௨ୖ࡟┦ᙜࡍࡿ࢚ࢿࣝࢠ࣮≧ែ࡟࡞ࡾࠊࢡ
࢚ࣥࢳࡉࢀ࡚࠸ࡿࡇ࡜ࡀ᥎ࡉࢀࡓࠋ  ࣃ ࣝ ࢫ ࠶ ࡓ ࡾ ࡢ ࢚ ࢿ ࣝ ࢠ ࣮ Q-SXOVHࠊ㉮ᰝ㏿ᗘ PPV ࡢ↷ᑕ᮲௳࡛స〇ࡉࢀࡓ㟁ᴟࡢ㟁ὶ㟁ᅽ≉ᛶࢆᅗ㸱࡟♧ࡍࠋࣇ࢙࣒ࢺ⛊࣮ࣞࢨ࣮↷ᑕ࡟ࡼࡗ࡚࢜
࣮࣑ࢵࢡ≉ᛶࡀᚓࡽࢀࠊࡑࡢᚋࡢ Υ኱Ẽ୰࢔ࢽ࣮ࣝ࡟ࡼࡾࠊ᢬ᢠࡢపୗࡀ☜ㄆࡉࢀࡓࠋ࠙◊✲ᡂᯝࡢබ⾲≧ἣࠚᅗ㸱 ↷ᑕ㟁ᴟࡢ㟁ὶ㟁ᅽᐃ⤖ᯝ㸺ཎⴭㄽᩥ㸼
࣭ Tatsuya Okada, Takuro Tomita, Hiroyuki Katayama, Yuki Fuchikami, Tomoyuki Ueki,
Hiromu Hisazawa and Yasuhiro Tanaka: Local melting of Au/Ni thin films irradiated byfemtosecond laser through GaN, Applied Physics. A, Materials Science & Processing,Vol.125, No.10, 690 (1-6), 2019㸺ᅜ㝿࣭ᅜෆ఍㆟㸼࣭Tatsuya Okada, Takuro Tomita, Yuki Fuchikami, Yusaku Mizuo, Hiromu Hisazawa andYasuhiro Tanaka: Formation of Ohmic Contact at Ni/SiC Interface with the Assistance ofFemtosecond-Laser-Induced Modifications, International Conference on Materials andSystems for Sustainability 2019, A3-P-8-(1040), Nagoya, Nov. 2019.
࣭ Takuro Tomita, Hiroki Kawakami and Yoshiki Naoi: Femtosecond laser irradiation aided
low-temperature thermal anneal of Ni electrode on SiC, The 8th International Congress on
Laser Advanced Materials Processing, We2-L8, Hiroshima, May 2019.

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