2C-a01

MOD 線材・ピンニング㻮㼍㻹㻻㻟 䝘䝜⢏Ꮚᑟධ䛻䜘䜛 㼀㻲㻭㻙㻹㻻㻰㻌㻔㼅㻜㻚㻣㻣㻳㼐㻜㻚㻞㻟㻕㻮㼍㻞㻯㼡㻟㻻㼥 ⥺ᮦ䛾㧗≉ᛶ໬㻌
Strongly enhanced flux pinning in TFA-MOD (Y,Gd)BCO CCs with BaMO3 nanoparticles
୕ᾆṇᚿ, 㔠஭ᇶᶞ, బ⸨㏔ኵ䠄ᡂ㋣኱䠅䠗୰ᒸ᫭୍, ࿴Ἠ㍤㑻䠄ISTEC&iSTERA䠅MIURA Masashi, Motoki Kanai, Sato Michio (Seikei Univ.); NAKAOKA Koichi, IZUMI Teruo (ISTEC&iSTERA)
E-mail: masashi-m@st.seikei.ac.jp㻝䠊䛿䛨䜑䛻㻌

㻌(a)

77 K

TFA-MOD ἲ REBa2Cu3Oy(REBCO)⥺ᮦ䛿䚸ప䝁䝇䝖໬䛜ᮇᚅ䛥䜜䚸㧗䛔㉸ఏᑟ≉ᛶ䜢᭷䛩䜛䛯䜑ᶵჾᛂ⏝䛜ᮇᚅ䛥䜜䛶䛔䜛䚹䛣䜜䜎䛷ᡃ䚻䛿䚸☢⏺୰⮫⏺㟁ὶᐦᗘ(Jc)ྥୖ䜢┠ⓗ䛻䚸☢᮰䝢䞁䝙䞁䜾Ⅼ䛸䛧䛶 BaMO3 䝘䝜⢏Ꮚ䜢㑅ᐃ䛧䚸䛭䛾䝃䜲䝈䜔ᐦᗘ䛾ไᚚ䛻ᡂຌ䛧䚸㧗䛔☢⏺୰ Jc ≉ᛶ䜢ᚓ䜛䛣䛸䛻ᡂຌ䛧䛶䛝䛯[1-3]䚹䛧䛛䛧䚸☢Ẽඹ㬆⏬ീデ᩿(MRI)⿦
⨨䜔་⒪⏝ຍ㏿ჾ⏝䝬䜾䝛䝑䝖䛺䛹䛾ᛂ⏝ᶵჾ䛻䛿᭦䛺䜛☢
⏺୰ Jc ≉ᛶ䛾ྥୖ䛜ᚲせ䛷䛒䜛䚹㻌(b)䛭䛣䛷ᮏ◊✲䛷䛿䚸䝃䜲䝈䜔ᐦᗘ䛜␗䛺䜛 BaMO3 䝘䝜⢏Ꮚ䛜ྛ☢⏺䚸

ᗘ䛻䛚䛡䜛☢᮰䝢䞁䝙䞁䜾䛻ཬ䜌䛩ᙳ㡪䜢᫂䜙䛛䛻䛧䚸᭦䛺䜛≉ᛶྥୖ䜢┠ᣦ䛩䚹㻞䠊ᐇ㦂᪉ἲ㻌ᮏ◊✲࡛ࡣࠊTFA-MODἲࢆ⏝࠸㔠ᒓᇶᯈୖ࡟ῧຍ㔞(0㹼50 mol%)ࡢ␗࡞ࡿBaZrO3(BZO)ᑟධ(Y,Gd)Ba2Cu3Oy ⥺ᮦࢆస〇ࡋࡓࠋᮏ↝ᚋࡢ⭷ཌࡣࠊ0.5 [Pm]࡛࠶ࡿࠋ㉸ఏᑟ㻌Fig.
1 BZO content dependence of (a) self-field Jc
at 77 K and (b) 'I of (Y,Gd)BCO CCs.

⥺ᮦࡢ⤖ᬗᛶࠊ⾲㠃ほᐹཬࡧ㉸ఏᑟ≉ᛶࢆX⥺ᅇᢡἲࠊ㧗ゎീᗘගᏛ㢧ᚤ㙾ཬࡧᅄ➃Ꮚἲࢆ⏝࠸࡚ホ౯ࡋࡓࠋPLD+BSO rod [4]㻟䠊ᐇ㦂⤖ᯝ㻌

77 K, H||cMOD+BZO NPs [5]ᅗ1(a)࡟BZOῧຍ㔞ࡢ␗࡞ࡿ(Y,Gd)BCO⥺ᮦࡢ77K࡟
NbTi@4.2 K [6]࠾ࡅࡿ⮬ᕫ☢⏺Jc(Jcs.f.)ࢆ♧ࡍࠋᅗࡼࡾ30 mol%ࡲ࡛ࡣࠊ࡯
ࡰ୍ᐃࡢ⣙4 MA/cm2ࢆ♧ࡍࡇ࡜ࡀศ࠿ࡿࠋ୍᪉ࠊ40 mol%

30 mol% BZO NPs

௨ୖ࡛ࡣJcs.f.ࡢపୗࡀ☜ㄆࡉࢀࡓࠋࡇࡢせᅉࢆㄪ࡭ࡿࡓࡵ
࡟ྛ⥺ᮦࡢ㠃ෆ㓄ྥᛶࢆホ౯ࡋࡓࠋᅗ1(b)࡟♧ࡍࡼ࠺࡟Jcs.f.ࡢపୗࡀ☜ㄆࡉࢀࡓ40 mol%௨ୖ࡛ࡣ㠃ෆ㓄ྥᛶࡀపୗࡋ࡚࠸ࡿࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋᅗ2࡟30 mol%BZO⥺ᮦࡢ
77K࡟࠾ࡅࡿᕧどⓗࣆࣥࢽࣥࢢຊࢆ♧ࡍࠋ30 mol%BZO⥺

Fig. 2 The Fp-P0H curves of (Y,Gd)BCO +30 mol.%BZO CCs at 77 K.

ᮦࡣࠊ2T࡟࠾࠸࡚Fp,max=17.3 GN/m3࡜(YGd)BCO⥺ᮦࡢ2ಸ௨ୖࡢ㧗࠸Fp,maxࢆ♧ࡍࡇ࡜ࡀ☜ㄆࡉࢀࡓࠋ
ᙜ᪥䛾Ⓨ⾲䛷䛿䚸ᚤ⣽ᵓ㐀ほᐹ⤖ᯝ䜢䜒䛸䛻ヲ⣽䛺☢⏺
୰Jc≉ᛶ䛻䛴䛔䛶䜒㆟ㄽ䛩䜛䚹ཧ⪃ᩥ⊩㻌
1. M. Miura, et al., Appl. Phys. Express, 1 (2008) 051701
2. M. Miura, et al., SUST 23 (2010) 014013

ㅰ㎡㻌ᮏ◊✲䛿䚸㧗

3. M. Miura, et al., Phys. Rev. B 83 (2011) 184519㉸㟁ᑟ䝁䜲䝹ᇶᯈᢏ⾡㛤Ⓨ䝥䝻䝆䜵䜽䝖䛾

4. P. Mele, et al., SUST 21 (2008) 125017

୍⎔䛸䛧䛶⤒῭⏘ᴗ┬(METI)ཬ䜃᪥ᮏ་⒪◊✲㛤Ⓨᶵᵓ

5. J. Gutiérrez et al., Nature Mater. 6 (2007) 367(AMED)䛾ጤク䛻䜘䜚ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹䜎䛯䚸ᮏ◊✲䛾୍

6. C.Meingast, et al., J. Appl. Phys. 66 (1989) 5971.

㒊䛿䚸JSPS ⛉◊㈝ 26709076 䛾ຓᡂ䜢ཷ䛡䛯䜒䛾䛷䛒䜛䚹̿̿

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2015年度秋季低温工学・超電導学会

2C-a02

MOD 線材・ピンニング㓟⣲䜰䝙䞊䝹 ᗘ䛜 㼀㻲㻭㻙㻹㻻㻰㻌㻔㼅㻜㻚㻣㻣㻳㼐㻜㻚㻞㻟㻕㻮㼍㻞㻯㼡㻟㻻㻣㻙G⥺ᮦ䛾㻌⤖ᬗᛶཬ䜃☢ሙ୰㉸ఏᑟ≉ᛶ䛻ཬ䜌䛩ᙳ㡪㻵㼚㼒㼘㼡㼑㼚㼏㼑㻌㼛㼒㻌㼛㼤㼥㼓㼑㼚㻌㼍㼚㼚㼑㼍㼘㼕㼚㼓㻌㼠㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼚㻌㼠㼔㼑㻌㼏㼞㼥㼟㼠㼍㼘㼘㼕㼚㼕㼠㼥㻌㼍㼚㼐㻌㼕㼚㻙㼒㼕㼑㼘㼐㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㼀㻲㻭㻙㻹㻻㻰㻌㻔㼅㻜㻚㻣㻣㻳㼐㻜㻚㻞㻟㻕㻮㼍㻞㻯㼡㻟㻻㻣㻙䃓㻌㼏㼛㼍㼠㼑㼐㻌㼏㼛㼚㼐㼡㼏㼠㼛㼞㼟㻌㛵⩼,୹⩚ಙ༤,బ⸨㏔ኵ,୕ᾆṇᚿ(ᡂ㋣኱) ;୰ᒸ᫭୍,࿴Ἠ㍤㑻(ISTEC-SRL & iSTERA)SEKI Tsubasa, NIWA Nobuhiro, SATO Micho, MIURA Masashi ;( SEIKEI University)
NAKAOKA Koichi, IZUMI Teruo (ISTEC-SRL & iSTERA)
E-mail: dm146312@ cc.seikei.ac.jp

Jcs.f. [MA/cm2]

(b)

4.0

4.0

3.5

3.5

3.0

3.0

2.5

2.5

2.0

2.0

1.5

1.5

1.0

1.0

0.5

0.5

㻌

įȦ (005) [deg.](a)į‫( ׋‬103) [deg.]㻝䠊䛿䛨䜑䛻㻌
Trifluoroacetates Metal Organic Deposition(TFA-MOD)ἲ
䛷స〇䛧䛯 REBa2Cu3O7-G (REBCO)⥺ᮦ䛿䚸⿦⨨䝁䝇䝖䛜௚䛾䝥䝻䝉䝇䛻ẚ䜉ప䛟䚸ཎᩱ㧗཰⋡䛷䛒䜛䛯䜑ప䝁䝇䝖໬䛜ᮇᚅ䛥䜜䛶䛔䜛ᡭἲ䛾୍䛴䛷䛒䜛[1]䚹TFA-MOD 䛷స〇䛧䛯
YBa2Cu3O7-G(YBCO)⥺ᮦ䛿䚸Ᏻ౯䛺ᾮయ❅⣲(77 K)ୗ䛻䛚䛔䛶㧗䛔㉸ఏᑟ≉ᛶ䜢᭷䛩䜛䛣䛸䛛䜙䚸☢Ẽඹ㬆⏬ീデ᩿(MRI)⿦⨨䜔㉸ఏᑟ㟁ຊ㈓ⶶ⿦⨨(SMES)䛺䛹䛾ᶵჾᛂ⏝䛻䜒ᮇᚅ䛥䜜䛶䛔䜛䚹䛧䛛䛧䚸䛣䜜䜙䛾ᶵჾᛂ⏝䛻䛿᭦䛺䜛⮫⏺㟁ὶᐦᗘ(Jc)䛾ྥୖ䛜ㄢ㢟䛸䛺䛳䛶䛔䜛䚹Jc ྥୖ䛾ලయⓗ䛺ᡭἲ䛸䛧䛶 Y/RE ⨨᥮䜔䜻䝱䝸䜰ไᚚ(㓟⣲㔞䛾᭱㐺໬)䛜
ୖ䛢䜙䜜䜛䚹ᡃ䚻䛿䚸䛣䜜䜎䛷 TFA-MOD ἲ䜢⏝䛔䚸YBCO⥺ᮦ䛾 Y 䛾୍㒊䜢 Gd 䛻⨨᥮䛧䛯(Y0.77Gd0.23) Ba2Cu3O7-G((Y,Gd)BCO)⥺ᮦ䛜 YBCO ⥺ᮦ䜘䜚㧗䛔⮫⏺⮫⏺ ᗘ(Tc)䚸
㧗䛔☢ሙ୰ Jc ≉ᛶ䜢♧䛩䛣䛸䜢ሗ࿌䛧䛶䛝䛯[2]䚹䜎䛯䚸䜻䝱䝸䜰ไᚚ䛻㛵䛧䛶 REBCO 䝞䝹䜽య䛿䚸䛭䛾ᙳ㡪䛻䛴䛶◊✲䛥䜜䛶䛝䛯䛜[3]䚸TFA-MOD ἲ䛻䜘䜚స〇䛧䛯(Y,Gd)BCO ⥺ᮦ䛾㓟⣲䜰䝙䞊䝹᮲௳䛜⤖ᬗᛶ䜔☢ሙ୰㉸ఏᑟ≉ᛶ䛻ཬ䜌䛩ᙳ㡪䛻䛴䛔䛶䛿᫂䜙䛛䛻䛺䛳䛶䛔䛺䛔䚹䛭䛣䛷ᮏ◊✲䛷䛿(Y,Gd)BCO ⥺ᮦ䜢స〇䛧䚸㓟⣲䜰䝙䞊䝹 ᗘ䜢 250~500 qC 䛸ኚ໬䛥䛫䚸㓟⣲䜰䝙䞊䝹䛜⤖ᬗᛶ䜔☢ሙ୰㉸ఏᑟ≉ᛶ䛻ཬ䜌䛩ᙳ㡪䛻䛴䛔䛶᳨ウ䛧䛯䚹

5.0
4.0
3.0
2.0
1.0 @77 K(c)
11.725c-axsi [Å]11.72011.71511.71011.70511.70011.695(d)㻞䠊ᐇ㦂᪉ἲ㻌ᮏ ◊ ✲ 䛷 䛿 䚸 㔠 ᒓ ᇶ ᯈ ୖ 䛻 TFA-MOD ἲ 䜢 ⏝ 䛔(Y,Gd)BCO ⥺ᮦ䜢స〇䛧䛯䚹⤖ᬗᚋ䛾⭷ཌ䛿䚸~0.5 [Pm]䛷
䛒䜛䚹㓟⣲䜰䝙䞊䝹 ᗘ䜢 250~500 qC 䛸ኚ໬䛥䛫䚸ಖᣢ᫬㛫
䜢 3 ᫬㛫䛸䛧䛯䚹䜎䛯䚸 ᗘ䛻䜘䜛㉸ఏᑟ≉ᛶ䛾㐪䛔䜢☜ㄆ䛩䜛䛯䜑䛻䚸3 ᫬㛫ಖᣢᚋ䛿㓟⣲䜢ὶ䛥䛪ᛴ෭䜢⾜䛳䛯䚹స〇䛧䛯㉸ఏᑟ⥺ᮦ䛾⤖ᬗᛶ䛿 X ⥺ᅇᢡἲ䚸⾲㠃ほᐹ䜢㧗ゎീᗘගᏛ㢧ᚤ㙾䚸㉸ఏᑟ≉ᛶ䛿ᅄ➃Ꮚἲ䜢⏝䛔䛶⾜䛳䛯䚹㻟䠊ᐇ㦂⤖ᯝ㻌Fig.1 䛻␗䛺䜛㓟⣲䜰䝙䞊䝹 ᗘ䛻䜘䜛ㅖ≉ᛶ䜢♧䛩䚹
Fig.1(a)䜘䜚䚸㓟⣲䜰䝙䞊䝹 ᗘ䛾㐪䛔䛻䜘䜛⤖ᬗᛶ䜈䛾ᙳ㡪䛿䜋䛸䜣䛹↓䛔䛣䛸䛜☜ㄆ䛥䜜䛯䚹ḟ䛻 77 K 䛻䛚䛡䜛 Jcs.f.
䜢 Fig.1(b)♧䛩䚹ᅗ䜘䜚䚸500 qC 䛛䜙 ᗘ䛜పୗ䛩䜛䛻䛴䜜䛶Jcs.f.䛜ྥୖ䛧䚸300 qC 䛻䛚䛔䛶᭱䜒㧗䛔 Jcs.f.䜢♧䛩䛣䛸䛜☜ㄆ䛥䜜䛯䚹䜎䛯䚸Fig.1(c)䜘䜚䚸㧗䛔 Jcs.f.䜢♧䛧䛯 300 qC 䛻䛚䛔䛶䚸᭱䜒▷䛔 c ㍈㛗䜢♧䛩䛣䛸䛜☜ㄆ䛥䜜䛯䚹䛣䛾䛣䛸䜘䜚 300 qC䛷䛿᭱䜒㓟⣲㔞䛜ከ䛔䛸⪃䛘䜙䜜䜛䚹᭦䛻䚸Fig.1(d)䜘䜚䚸300
qC 䛿௚䛾⥺ᮦ䜘䜚 Tc 䛜ప䛔䛣䛸䛜☜ㄆ䛥䜜䛯䚹䛣䜜䜙䛾䛣䛸䛛䜙 300 qC 䛿㓟⣲㔞䛜ከ䛟 Tc 䛜ప䛔䛣䛸䛛䜙䜸䞊䝞䞊䝗䞊䝥≧ែ䛻䛺䛳䛶䛔䜛ྍ⬟ᛶ䛜䛒䜛䚹ᙜ᪥䛾Ⓨ⾲䛷䛿䚸☢ሙ୰ Jc ≉ᛶ䜔୙ྍ㏫☢ሙ䚸㓟⣲䜰䝙䞊䝹䛻䜘䜛䝢䞁䝙䞁䜾䛻䛴䛔䛶䜒㆟ㄽ䛩䜛䚹

94.0

Tc [K]

92.0
90.0
88.0
86.0
250

300

350

400

450

500

Annealing temperature [ºC]Fig.1 Annealing temperature dependence of (a) crystallinity,(b)Jcs.f.,(c) c-axis and (d) Tc in TFA-MOD (Y,Gd)BCO CCs.
ㅰ㎡㻌ᮏ◊✲䛿䚸㧗 ㉸㟁ᑟ䝁䜲䝹ᇶᯈᢏ⾡㛤Ⓨ䝥䝻䝆䜵䜽䝖䛾୍⎔䛸䛧䛶⤒῭⏘ᴗ┬(METI)ཬ䜃᪥ᮏ་⒪◊✲㛤Ⓨᶵᵓ
(AMED)䛾ጤク䛻䜘䜚ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹䜎䛯䚸ᮏ◊✲䛾୍㒊䛿䚸JSPS ⛉◊㈝ 26709076 䛾ຓᡂ䜢ཷ䛡䛯䜒䛾䛷䛩䚹ཧ⪃ᩥ⊩㻌[1] Y. Shiohara, et al.: Jpn. J. Appl. Phys. 51 (2012) 01007[2] M. Miura, et al.: APEX 2 (2009) 023002[3] J. Shiomoyama, et al.: Mat. Res. Soc. Symp. Proc. 689(2002) 3236

̿̿

第92回

2015年度秋季低温工学・超電導学会

2C-a03

MOD 線材・ピンニングప↝ᡂ䛻䜘䜛䝣䝑⣲䝣䝸䞊MOD ἲ YBCO 㓄ྥ⭷䛾స〇Preparation of textured fluorine-free MOD YBCO films
by applying low temperature sinteringඖᮌ㈗๎ ᮾ኱  ୗᒣ῟୍ 㟷Ꮫ኱ Ⲷ㔝ᣅ, ᓊᑿග஧ᗄཎ㞝୍ ᮾ኱ ᮏ⏣ඖẼỌ▼❳㉳ ఫ཭㟁ᕤ 
MOTOKI Takanori (Univ. of Tokyo), SHIMOYAMA Jun-ichi (Aoyama Gakuin Univ.), OGINO Hiraku,
KISHIO Kohji, IKUHARA Yuichi (Univ. of Tokyo), HONDA Genki, NAGAISHI Tatsuoki (Sumitomo Electric Industries, Ltd.)E-mail: 3064622801@mail.ecc.u-tokyo.ac.jp
1. ࡣࡌࡵ࡟
REBa2Cu3Oy (REBCO) ㉸ఏᑟయⷧ⭷ࡢస〇ἲࡢ࡞࠿࡛ࠊ
ࣇࢵ⣲ࣇ࣮ࣜMOD ἲࡣ༢⣧࡞ᅛ┦཯ᛂ࡟ࡼࡾࠊᆒ㉁࡞
REBCO ┦ࡀ▷᫬㛫࡛⏕ᡂࡍࡿ࡜࠸࠺≉ᚩࡀ࠶ࡿ[1]ࠋࡋ࠿
ࡋࠊᮦᩱ㛤Ⓨ࡟ྥࡅࡓ◊✲౛ࡣᑡ࡞ࡃ㧗 Ic ࢆ♧ࡍⷧ⭷ࡣᚓࡽࢀ࡚࠸࡞࠸ࠋࡇࢀࡲ࡛ᡃࠎࡣཎᩱ⁐ᾮ࡬ࡢ Cl ࢻ࣮ࣉ࡟ࡼࡾ c ㍈㓄ྥࡋࡓ Ba2Cu3O4Cl2 (Ba2342)㓟ሷ໬≀ࡀ⭷୰࡟ᯒฟࡍࡿࡇ࡜ࢆሗ࿌ࡋ࡚ࡁࡓࠋࡇࡢ㓟ሷ໬≀ࡣ YBCO ࡢ 2㍈㓄ྥࢆಁ㐍ࡋ☢ሙ୰ࡢ Jc ≉ᛶࢆᨵၿࡍࡿࡇ࡜ࡀࢃ࠿ࡗ
࡚࠸ࡿ[2]ࠋ
Fig. 1 Cross-sectional STEM image of Ba2342/YBCO/SrTiO3
ᮏ◊✲࡛ࡣࠊBa2342 ࡢ⏕ᡂᶵᵓࡢゎ᫂ࢆ┠ᣦࡋࡓ᩿㠃interface of the Cl-doped YBCO film.
⤌⧊ほᐹࢆ⾜ࡗࡓࠋࡲࡓࠊ㛗ᑻ໬ࡀྍ⬟࡞㔠ᒓ Clad ᇶᯈୖ࡬ࡢ㧗≉ᛶ Cl ࢻ࣮ࣉ YBCO ⷧ⭷ࡢᡂ⭷ࢆ┠ⓗ࡟↝ᡂ᮲௳ࢆ⣔⤫ⓗ࡟ኚ໬ࡉࡏ࡚ⷧ⭷ࢆస〇ࡋ㏻㟁≉ᛶࢆㄪ࡭ࡓࠋ
2. ᐇ㦂᪉ἲ
Y, Ba, Cu ࡢࣉࣟࣆ࢜ࣥ㓟ሷ⁐ᾮ࡟ሷ㓟ࢆΰྜࡋࠊ௙㎸⤌ᡂࡀ YBa2+2xCu3+3xOyCl2x (x = 0, 0.05)࡜࡞ࡿࡼ࠺࡟⁐ᾮࢆㄪ〇ࡋࡓࠋSrTiO3(100)༢⤖ᬗᇶᯈࡶࡋࡃࡣ㔠ᒓࢡࣛࢵࢻᇶ
ᯈୖ࡟⁐ᾮࢆሬᕸᚋࠊ㓟⣲Ẽὶ୰~500qC ࡛௬↝ࡋ࡚᭷ᶵ≀ࢆศゎࡋࡓࠋࡇࡢ᧯సࢆ 3 ᅇ⧞ࡾ㏉ࡋ࡚௬↝⭷ࢆస〇ࡋࠊ⥆࠸࡚ O2(3, 10 Pa) / Ar ࣇ࣮ࣟ୰, 740-800°C, 1-1080 min ࡢ᮲௳ୗ࡛↝ᡂࡋࡓᚋࠊ㓟⣲Ẽὶ୰ 450qC ࡛ࡢ࢔ࢽ࣮ࣝ࡟ࡼ
ࡗ࡚࢟ࣕࣜ࢔⃰ᗘࢆㄪ⠇ࡋࡓࠋ⭷ཌࡣ~0.5 Pm ࡛࠶ࡿࠋࡇ
ࢀࡽࡢⷧ⭷࡟ᑐࡋ࡚ࠊSTEM ࡟ࡼࡿᚤ⣽⤌⧊ほᐹࠊㄏᑟἲ
࡟ࡼࡿ Ic ≉ᛶࡢホ౯ࢆ⾜ࡗࡓࠋ
3. ⤖ᯝࡣࡌࡵ࡟ࠊCl ࢻ࣮ࣉ࡟ࡼࡿ Ba2342 ࡢ⏕ᡂᶵᵓ࡟㛵ࡋ࡚⪃ᐹࡋࡓࠋBa2342 ࡣ↝ᡂࣉࣟࢭࢫ୰࡟~550°C ࠿ࡽ c ㍈㓄ྥࡋ࡚⏕ᡂࡍࡿࡇ࡜ࡀศ࠿ࡗ࡚࠸ࡿࠋSrTiO3 ᇶᯈୖ࡟800°C ↝ᡂ࡛ᡂ⭷ࡋࡓ Cl ࢻ࣮ࣉ YBCO ⷧ⭷ࡢᇶᯈ⏺㠃ࡢ᩿㠃 STEM ീࢆ Fig. 1 ࡟♧ࡍࠋࡇࢀࡲ࡛ࠊᇶᯈ࠿ࡽ┤᥋
Ba2342 ࡀ࢚ࣆࢱ࢟ࢩࣕࣝᡂ㛗ࡋ࡚࠸ࡿ࡜⪃࠼࡚࠸ࡓࡀࠊ
Fig. 2 ࡟♧ࡍࡼ࠺࡟ᇶᯈ࡜ Ba2342 ࡢ㛫࡟ 1 ᒙࡢ c ㍈㓄ྥࡋࡓ YBCO ࡀ⏕ᡂࡋ࡚࠸ࡿࡇ࡜ࡀ㧗ಸ⋡ࡢ᩿㠃ほᐹ࠾ࡼࡧඖ⣲ศᯒ࠿ࡽ᫂ࡽ࠿࡟࡞ࡗࡓࠋ
⥆࠸࡚ࠊ㔠ᒓ Clad ᇶᯈୖ࡟㓟⣲ศᅽ࣭↝ᡂ ᗘ࣭↝ᡂ᫬㛫ࢆኚ໬ࡉࡏ࡚ Cl ࢻ࣮ࣉ YBCO ⷧ⭷ࢆస〇ࡋࡓࠋFig. 2࡟ࡑࢀࡒࢀࡢ᮲௳࡟࠾ࡅࡿ Ic ࢆࡲ࡜ࡵࡓࠋࣀࣥࢻ࣮ࣉࡢሙ
Fig. 2 Ic (77 K, 0 T) dependence of Cl-doped YBCO films sinྜࠊ㓟⣲ศᅽ 10 Pa ࡟࠾࠸࡚ 780°C ௨ୗࡢ↝ᡂ࡛ࡣ㓄ྥ⭷
tered under various conditions. Ic values are shown beside theࡀᚓࡽࢀ࡞࠸ࠋ୍᪉ࠊCl ࢻ࣮ࣉࢆ⾜࠺ࡇ࡜࡟ࡼࡾ㓟⣲ศ
respective data points and “” marks represent Ic = 0.
ᅽ 10 Pa, 780°C, 30 min ↝ᡂ࡛ Ic ࡀ㧗࠸ⷧ⭷ࡀᚓࡽࢀࠊᚑ
᮶ࡼࡾࡶప࠸ ᗘ࡛ࡢ㓄ྥ⭷ࡢస〇ࡀྍ⬟࡛࠶ࡿࡇ࡜ࡀ
ཧ⪃ᩥ⊩
᫂ࡽ࠿࡟࡞ࡗࡓࠋࡉࡽ࡟㓟⣲ศᅽࢆ 3 Pa ࡟ୗࡆࡿ࡜ࠊ740°C[1] Y. Ishiwata et al., IEEE Trans. Appl. Supercond. 23 (2013)࡜࠸࠺ప ↝ᡂ࡟ࡼࡗ࡚ 90 A/cm-w ㏆࠸ Ic ࢆ♧ࡍ㧗≉ᛶ࡞
7500804.
ⷧ⭷ࡀᚓࡽࢀࡓࠋᙜ᪥ࡣࠊཌ⭷໬࡟ࡼࡿࡉࡽ࡞ࡿ㧗 Ic ໬ࡢ[2] T. Motoki et al., Supercond. Sci. Technol. 27 (2014)
ヨࡳ࡟ࡘ࠸࡚ࡶⓎ⾲ࡍࡿணᐃ࡛࠶ࡿࠋ
095017.

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第92回

2015年度秋季低温工学・超電導学会

2C-a04

MOD 線材・ピンニング

YBCO 䝘䝜䝁䞁䝫䝆䝑䝖ⷧ⭷䛻䛚䛡䜛 Tc ᶵᵓ䛾ゎ᫂
Tc mechanism in YBCO nanocomposite films

Normalizedintensityᇼฟ㻌 ᭸ဢ㻔஑ᕞᕤᴗ኱Ꮫ㻕; ྜྷᒸ㻌 ⫄㻔஑ᕞ኱Ꮫ㻕;㻌 ໭ᮧ㻌 ㈗඾,㻌 ᯇᮏ㻌 せ㻔஑ᕞᕤᴗ኱Ꮫ㻕㻌
HORIDE Tomoya (Kyushu Institute of Technology); YOSHIOKA Satoru (Kyushu University);
KITAMURA Takanori, MATSUMOTO Kaname (Kyushu Institute of Technology)
E-mail: horide@post.matsc.kyutech.ac.jp㻌ᐇ 㦂 ⤖ ᯝ 䜢 䝅䝭 䝳 䝺 䞊 䝅䝵 䞁䜢 ⏝ 䛔 䛶 ㆟ ㄽ䛧 䛯䚹YBCO䠇㻝䠊䛿䛨䜑䛻㻌
BMO ⷧ⭷䛾䜂䛪䜏ᣲື䜢㆟ㄽ䛩䜛䛯䜑䛻᭷㝈せ⣲ἲᙎᛶ
YBa2Cu3O7(YBCO)㉸ఏᑟ⥺ᮦ䛿㧗䛔㉸ఏᑟ≉ᛶ䛜ᐇ⌧䜂䛪䜏ィ⟬䜢⾜䛳䛯䚹䜂䛪䜏䛜㓟⣲✵Ꮝ㔞䛻ཬ䜌䛩ᙳ㡪䜢䛷䛝䜛䛣䛸䛛䜙䚸䜿䞊䝤䝹䚸䝬䜾䝛䝑䝖➼䜈䛾ᛂ⏝䛜ᮇᚅ䛥䜜䛶㆟ㄽ䛩䜛䛯䜑䛻䚸䛥䜎䛦䜎䛺䜂䛪䜏≧ែୗ䛷䛾㓟⣲✵Ꮝᙧᡂ
䛔䜛䚹YBCO ⥺ᮦ䛷䛿䝘䝜䝻䝑䝗䜔䝘䝜⢏Ꮚ䜢ᑟධ䛩䜛䛣䛸䛻䜶䝛䝹䜼䞊䜢ィ⟬䛧䛯䚹䛺䛚㓟⣲✵Ꮝᙧᡂ䜶䝛䝹䜼䞊䛾ィ䜘䜚㧗䛔⮫⏺㟁ὶᐦᗘ(Jc)䛜ᐇ⌧䛧䛶䛝䛯䚹⌧ᅾ䜎䛷䛾◊✲䛷⟬䛻䛿 VASP(Vienna Ab initio Simulation Package)䜢⏝䛔䝘䝜䝻䝑䝗䜔䝘䝜⢏Ꮚ䜢ᑟධ䛩䜛䛣䛸䛻䜘䜚㧗䛔≉ᛶ䛜ᐇド䛥䛯䚹䜜䛶䛿䛝䛯䛜䚸䛭䛾≉ᛶ䜢ᨭ㓄䛩䜛ᅉᏊ䛻䛴䛔䛶䛿᫂䜙䛛䛷䛿䛺䛔䚹㏆ᖺ≉ᛶྥୖ䛜㣬࿴䛧䛴䛴䛒䜚䚸䛥䜙䛺䜛㉸ఏᑟ≉㻟䠊⤖ᯝ㻌ᛶྥୖ䛻䛿≉ᛶỴᐃᅉᏊ䜢ゎ᫂䛧䛯䛖䛘䛷䚸YBCO ⷧ⭷䜔
XRD 䛸 TEM ⤖ᯝ䛛䜙 YBCO+BMO ⷧ⭷䛻䛚䛔䛶 BMO⥺ᮦ䛾ᵓ㐀䜢タィ䚸ไᚚ䛧䛶䛔䛟ᚲせ䛜䛒䜛䚹䝘䝜䝻䝑䝗䛜ᙧᡂ䛥䜜䛶䛔䜛䛣䛸䛜ศ䛛䛳䛯䚹䜎䛯 XRD ⤖ᯝ䛛
Jc 䜢ᨭ㓄䛩䜛ᅉᏊ䛸䛧䛶䚸⮫⏺ ᗘ(Tc)䛸☢᮰䝢䞁䝙䞁䜾䛜䜙 BMO 䝘䝜䝻䝑䝗䛻䜘䜚 YBCO ⷧ⭷䛻䜂䛪䜏䛜ᑟධ䛥䜜䛶䛔䛒䛢䜙䜜䜛䚹䝬䝖䝸䝑䜽䝇䛾 Tc 䛜䝬䝖䝸䝑䜽䝇䛾㉸ఏᑟ≧ែ䜢Ỵ䜛䛣䛸䛜䜟䛛䛳䛯䚹䜂䛪䜏䛿 YBCO 䛾㓟⣲✵Ꮝᙧᡂ䜶䝛䝹䜼ᐃ䛩䜛䛸䛸䜒䛻䚸䝢䞁䝙䞁䜾䝉䞁䝍䞊࿘㎶䛾ᒁᡤⓗ䛺 Tc ศᕸ䛿䞊䜢ኚ໬䛥䛫䜛䛣䛸䜢䛩䛷䛻ሗ࿌䛧䛶䛔䜛 [1]䚹䜎䛯≉ᛶホ౯せ⣲䝢䞁ຊ(fp)䜢Ỵᐃ䛩䜛䚹Tc 䛸 fp 䜢⌮ゎ䛩䜛䛖䛘䛷㟁Ꮚ䝇䜿ᐇ㦂䛾⤖ᯝ䛛䜙 Tc 䛿 BMO ῧຍ㔞䛸䛸䜒䛻ῶᑡ䛩䜛䛣䛸䛜ศ䞊䝹䚸ཎᏊ䝇䜿䞊䝹䛾⌧㇟䛜㔜せ䛷䛒䜛䚹୍᪉䚸☢᮰ᣲື䛾䛛䛳䛯䚹䛣䜜䜙䛾⤖ᯝ䛿䝘䝜䝻䝑䝗ᑟධ䛻䜘䜚㓟⣲✵Ꮝ䛜ᑟධ㆟ㄽ䛾ẁ㝵䛻䛺䜛䛸䚸䝢䞁䝙䞁䜾䝉䞁䝍䞊ᐦᗘ䜔䝢䞁䝙䞁䜾䝉䛥䜜䚸䛭䜜䛻䜘䛳䛶 Tc 䛜ῶᑡ䛧䛶䛔䜛䛣䛸䜢♧၀䛧䛶䛔䜛䚹䞁䝍䞊ศᕸ䛺䛹䛾䝘䝜䝇䜿䞊䝹䛾ᗄఱᏛⓗᅉᏊ䛜୺せ䝟䝷䝯
YBCO+BMO ⷧ⭷䛻䛚䛡䜛㓟⣲✵Ꮝᑟධ䜢㆟ㄽ䛩䜛䛯䜑䞊䝍䛷䛒䜛䚹䛣䛾䜘䛖䛻 Tc 䛸☢᮰䝢䞁䝙䞁䜾䛾୧ᅉᏊ䜢᫂䜙䛛䛻
XANESᐃ䜢⾜䛳䛯䚹ᅗ 1 䛻 XANES 䝇䝨䜽䝖䝹䜢♧䛩䚹䛻䛩䜛ᚲせ䛜䛒䜛䛜䚸䛭䜜䛮䜜␗䛺䜛䜰䝥䝻䞊䝏䛷ᶵᵓ䜢ゎᅗ1䛷䛿㓟⣲ᑟධ(෭༷)᫬䛾㓟⣲ศᅽ䜢ῶᑡ䛥䛫䜛䛣䛸䛻䜘ᯒ䛩䜛ᚲせ䛜䛒䜛䚹䛣䜜䜎䛷䛾◊✲䛷䛿䛹䛱䜙䛾ᅉᏊ䛻㛵䛧䜚㓟⣲㔞䜢ῶᑡ䛥䛫䛯 YBCO ⷧ⭷䛸㓟⣲䜢༑ศ䛻ᑟධ䛧䛯䛶䜒ヲ⣽䛺㆟ㄽ䛜㐍䜑䜙䜜䛶䛔䜛䛸䛿ゝ䛘䛺䛔䚹
YBCO ⷧ⭷䛻䛚䛔䛶 XANES 䝇䝨䜽䝖䝹䜢ẚ㍑䛧䛶䛔䜛䚹㓟⣲ᮏ◊✲䛷䛿 Tc ᅉᏊ䜢㆟ㄽ䛩䜛䚹YBCO 䛾 Tc 䛿㓟⣲㔞䛻✵Ꮝᑟධ䛻䜘䜚䝢䞊䜽䛜ᑠ䛥䛟䛺䛳䛯䚹䛣䛾䜘䛖䛺䝇䝨䜽䝖䝹䛾኱䛝䛟౫Ꮡ䛩䜛䛣䛸䛜▱䜙䜜䛶䛔䜛䚹୍᪉䛷䚸㟼Ỉᅽୗ䛷䛾 Tc
ኚ໬䛿㓟⣲✵Ꮝᑟධ䛾≉ᚩ䛷䛒䜛䛸⪃䛘䜙䜜䚸BMO ᑟධ䛻ᐃ䛿䚸Tc 䛜䜂䛪䜏䛻䜒౫Ꮡ䛩䜛䛣䛸䜢♧䛧䛶䛔䜛䚹䛥䜙䛻䜘 䜛 YBCO ⷧ ⭷ 䛾 䝇 䝨 䜽 䝖 䝹 ኚ ໬ 䛸 ẚ ㍑ 䛩 䜛 䛣 䛸 䛷
CuO2 㠃䛾஘䜜➼䜒 Tc 䛻ᙳ㡪䜢ཬ䜌䛩ྍ⬟ᛶ䛜ᣦ᦬䛥䜜䛶䛔
YBCO+BMO ⷧ⭷䛾㓟⣲✵Ꮝᣲື䜢㆟ㄽ䛩䜛䛣䛸䛜䛷䛝䜛䚹䜛䚹䝢䞁䝙䞁䜾䝉䞁䝍䞊䜢ᑟධ䛩䜛䛸䝬䝖䝸䝑䜽䝇䛸䝢䞁䝙䞁䜾䝉ᙜ᪥䛿 YBCO+BMO ⷧ⭷䛾 XRD䚸XANES ⤖ᯝ䜢⥲ྜⓗ䞁䝍䞊ᮦᩱ䛾䝭䝇䝣䜱䝑䝖䛻㉳ᅉ䛧䛶 YBCO ෆ䛻䜂䛪䜏䛜ᑟධ䛻ゎᯒ䛧䚸䝅䝭䝳䝺䞊䝅䝵䞁⤖ᯝ䛸ẚ㍑䛩䜛䛣䛸䛻䜘䜚䚸䝘䝜䝻䝑䛥䜜䜛䚹䝢䞁䝙䞁䜾䝉䞁䝍䞊䛜䜂䛪䜏䜔⏺㠃䜢㏻䛧䛶㓟⣲㔞䝗䛜 Tc 䛻ཬ䜌䛩ᙳ㡪䜢ヲ⣽䛻㆟ㄽ䛩䜛䚹䜢ኚ໬䛥䛫䜛䛣䛸䛿༑ศ䛻⪃䛘䜙䜜䜛䚹䛣䜜䜙䛾ᶵᵓ䜢ヲ⣽䛻᳨ウ䛩䜛䛣䛸䛷 Tc Ỵᐃᶵᵓ䜢᫂䜙䛛䛻䛩䜛䛣䛸䛜䛷䛝䜛䚹
1.5ᮏ◊✲䛷䛿 BaMO3(BMO, M=Zr, Sn, Hf)䝘䝜䝻䝑䝗䜢ᑟධ
Oxygen䛧䛯 YBCO ⷧ⭷䛻╔┠䛩䜛䚹䝘䝜䝻䝑䝗䜢᭷䛩䜛 YBCO ⷧ⭷
deficient䛻䛚䛔䛶䜂䛪䜏䜔㓟⣲㔞䛜 Tc 䛻ཬ䜌䛩ᙳ㡪䜢᫂䜙䛛䛻䛩䜛䛣䛸䛜䛷䛝䜜䜀䚸䛭䛾௚䛾䝢䞁䝙䞁䜾䝉䞁䝍䞊䜢᭷䛩䜛⣔䛻䛚1䛔䛶䜒䛭䛾▱ぢ䜢㐺⏝䛷䛝䜛䛸⪃䛘䜙䜜䜛䚹YBCO+BMO ⷧ⭷
Fullyoxidized
䛾 Tc ᶵᵓ䜢᫂䜙䛛䛻䛩䜛䛯䜑䛻䚸䜂䛪䜏䚸㓟⣲㔞䚸㟁Ꮚ≧ែ䛺䛹䛾ゎᯒ䜢⾜䛖䚹ᚑ᮶䛾䝘䝜䝻䝑䝗ゎᯒ䛻䛚䛔䛶⏝䛔䜙䜜䛶
0.5
䛝䛯㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾(TEM)䚸X ⥺ᅇᢡ(XRD)䜢⾜䛔䚸䛥䜙䛻 X ⥺྾཰ᚤ⣽ᵓ㐀(XANES)ゎᯒ䜢⾜䛖䚹ᐇ㦂⤖ᯝ䜢㆟ㄽ䛩䜛䛯䜑䛻᭷㝈せ⣲ἲ䛻䜘䜛ᙎᛶゎᯒ䜔➨୍ཎ⌮ィ⟬䜢⏝䛔䛯㓟⣲✵Ꮝᙧᡂ䜶䝛䝹䜼䞊ィ⟬䜔䝞䞁䝗ィ⟬䜢⾜䛖䚹䛣䜜
0
8970
8990
9010
9030
䜙䛾⤖ᯝ䜢䜒䛸䛻䚸YBCO+BMO ⷧ⭷䛾 Tc ᶵᵓ䜢᫂䜙䛛䛻䛩
E(eV)
䜛䚹



㻞䠊ᐇ㦂ཬ䜃ィ⟬᪉ἲ㻌䝟䝹䝇䝺䞊䝄䞊⵨╔(PLD)䜢⏝䛔䛶 YBCO+BMO ⷧ⭷䛿
SrTiO3 ᇶᯈୖ䛻స〇䛧䛯䚹PLD 䛷䛿 YBCO+BaZrO3(BZO)䚸
YBCO+BaSnO3(BSO)䚸YBCO+BaHfO3(BHO)ΰྜ䝍䞊䝀䝑䝖䜢⏝䛔䚸BMO ῧຍ㔞䜢 3䠉8wt%䛸䛧䛯䚹XRD(㻞T䠉Z䝇䜻䝱䞁䚸㏫᱁Ꮚ䝬䝑䝢䞁䜾(RSM))䚸TEM 䜢⏝䛔䛶ⷧ⭷ᵓ㐀䜢ホ౯䛧䛯䚹䛥䜙䛻 Cu ྾཰➃䛻䛚䛔䛶 XANES 䜢⾜䛳䛯䚹㓟⣲㔞䛾ຠᯝ䛿䜻䝱䝸䜰䜢㏻䛧䛶 Cu ౯ᩘ䛻ᙳ㡪䛩䜛䚹䛣䛣䛷䛿 Cu ౯ᩘ䜢䜒䛸䛻㓟 ⣲㔞 䜢㆟ ㄽ䛩䜛䚹 Physical Property Measurement
System(PPMS)䜢⏝䛔䛶᢬ᢠ䇲 ᗘ᭤⥺䜢 ᐃ䛧 Tc 䜢ồ䜑䛯䚹

Fig.1 XANES spectrum in fully oxidized and oxygen
deficient YBCO films.
ཧ⪃ᩥ⊩㻌
1. T. Horide et al: Supercond. Sci. Technol. Vol. 27(2014) p.
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MOD 線材・ピンニング

㻌
YBCO+BMO ⷧ⭷䛻䛚䛡䜛☢᮰䝢䞁䝙䞁䜾ᶵᵓゎᯒ
Vortex pinning mechanism in YBCO+BMO films

Fp/Fp,maxᇼฟ㻌 ᭸ဢ䠈⏣ཱྀ㻌 ೺ኴ䠈ᯇᮏ㻌 せ㻌 㻔஑ᕞᕤᴗ኱Ꮫ㻕㻌
HORIDE Tomoya, TAGUCHI Kenta, MATSUMOTO Kaname (Kyushu Institute of Technology)
E-mail: horide@post.matsc.kyutech.ac.jp㻌㻝䠊䛿䛨䜑䛻㻌
㻟䠊⤖ᯝ㻌䜿䞊䝤䝹䜔䝬䜾䝛䝑䝖ᛂ⏝䛻ྥ䛡䛶 YBa2Cu3O7(YBCO)㉸
YBCO+BSO (3 wt%)ⷧ⭷䛷䛿ప☢ሙ䛻䛚䛔䛶 Jc 䛜኱䛝䛟ఏᑟ⥺ᮦ䛾⮫⏺㟁ὶᐦᗘ(Jc)䛾ྥୖ䛜ồ䜑䜙䜜䛶䛔䜛䚹ேᕤྥ ୖ 䛧 䛯 䚹 ୍ ᪉ 䚸 YBCO+BZO (4 wt%) 䚸 YBCO+BHO (6wt%)䛻䛚䛔䛶䛿ప☢ሙ䛷䛿 Jc 䛾ྥୖ䛿ᑠ䛥䛛䛳䛯䛜䚸㧗☢
䝢䞁䝙䞁䜾䝉䞁䝍䞊(APC)䛸䛧䛶䚸᱁ᏊḞ㝗䞉䝘䝜䝻䝑䝗䞉䝘䝜⢏Ꮚ䛜ᑟධ䛥䜜䚸Jc 䛜ྥୖ䛧䛶䛝䛯䚹䛧䛛䛧௒ᚋ䛥䜙䛻㧗 Jc ໬䜢ሙ䛷 Jc 䛜኱䛝䛟ྥୖ䛧䛯䚹ᅗ 1 䛻 YBCO+BZO (4 wt%)䚸
┠ᣦ䛩䛻䛿䚸Jc ᶵᵓ䜢⌮ゎ䛧䛯䛖䛘䛷 APC ᵓ㐀䜢タィ䚸ไᚚ
YBCO+BSO (3 wt%)䚸YBCO+BHO (6 wt%)ⷧ⭷䛻䛚䛡䜛 77
K 䛾 Fp/Fp,max䇲B ≉ᛶ䜢♧䛩䚹䛺䛚 Fp䚸Fp,max 䛿ᕧどⓗ䝢䞁ຊ䛧䛶䛔䛟ᚲせ䛜䛒䜛䚹Tc 䛸☢᮰䝢䞁䝙䞁䜾䛜 Jc 䛻኱䛝䛺ᙳ㡪䜢ཬ䜌䛩䛸⪃䛘䜙䜜䜛䛜䚸䛹䛱䜙䛾䝯䜹䝙䝈䝮䜒䜘䛟⌮ゎ䛥䜜䛶䛔䛚䜘䜃䛭䛾᭱኱್䛷䛒䜛䚹Fp,max 䛿 YBCO+BSO (3 wt%)䚸
䜛䛸䛿ゝ䛘䛺䛔䚹ᮏ◊✲䛷䛿䛣䜜䜙䛾ᅉᏊ䛾䛖䛱䚸☢᮰䝢䞁䝙
YBCO+BZO (4 wt%)䚸YBCO+BHO (6 wt%)䛾㡰䛻㧗☢ሙ䛻䞁䜾䛜 Jc 䛻䛚䜘䜌䛩ᙳ㡪䜢᫂䜙䛛䛻䛩䜛䛣䛸䜢┠ⓗ䛸䛩䜛䚹䝅䝣䝖䛧䛯䚹Tirr䇲B ᭤⥺䛻䛚䛔䛶䜻䞁䜽䛜ほᐹ䛥䜜䛯䚹䜻䞁䜽䛿☢᮰䝢䞁䝙䞁䜾ᶵᵓ䛿 APC 䛾ᗄఱᏛⓗᙧ≧䛻኱䛝䛟౫Ꮡ䝬䝑䝏䞁䜾☢ሙ(䠙nI0; n 䛿䝘䝜䝻䝑䝗ᐦᗘ䠗I0 䛿☢᮰㔞Ꮚ)䛷
䛩䜛䛯䜑䚸APC 䛾✀㢮䛤䛸䛻ヲ⣽䛺㆟ㄽ䜢⾜䛖ᚲせ䛜䛒䜛䚹⌧䜜䜛䛣䛸䛜▱䜙䜜䛶䛔䜛䚹䜻䞁䜽䛛䜙ồ䜑䜙䜜䜛䝬䝑䝏䞁䜾☢
ᮏ◊✲䛷䛿䝘䝜䝻䝑䝗䜢ᑟධ䛧䛯 YBCO ⷧ⭷䛾☢᮰䝢䞁䝙䞁ሙ 䛿 YBCO+BZO(4wt%) 䚸 YBCO+BSO(3wt%) 䚸䜾䛻䛴䛔䛶㆟ㄽ䛩䜛䚹䝘䝜䝻䝑䝗䛿 c ㍈┦㛵䝢䞁䛷䛒䜚䚸c ㍈┦
YBCO+BHO (6wt%)ⷧ⭷䛻䛚䛔䛶 3.8 T䚸1.5 T䚸4 T 䛸䛺䛳䛯䚹㛵䝢䞁䛻㛵䛩䜛◊✲䛿ከ䛟䛾◊✲⪅䛻䜘䛳䛶䛺䛥䜜䛶䛝䛯䚹⌮
YBCO+BZO (4wt%) 䚸 YBCO+BSO (3wt%) 䚸 YBCO+BHOㄽ㠃䛷䛿 Nelson 䜙䛻䜘䛳䛶 Bose glass ⌮ㄽ䛜ᥦ᱌䛥䜜[1]䚸䛣
(6wt%)ⷧ⭷䛻䛚䛡䜛 Jc ᣲື䛿䝬䝑䝏䞁䜾☢ሙ䛻኱䛝䛟౫Ꮡ䛧䚸䜜䜢⏝䛔䛶 c ㍈┦㛵䝢䞁䝙䞁䜾䛻㛵䛩䜛䛥䜎䛦䜎䛺⌧㇟䛜㆟䝬䝑䝏䞁䜾☢ሙ䛜ᑠ䛥䛔 YBCO+BSO(3 wt%)䛷䛿ప☢ሙ䛷ㄽ䛥䜜䛯䚹䜎䛯㔜䜲䜸䞁↷ᑕ䛻䜘䜚ᰕ≧Ḟ㝗䜢 YBCO 䛻ᑟධ㧗 Jc 䛜 ほ ᐹ 䛥 䜜 䛯 䛾 䛻 ᑐ 䛧 䚸 䝬 䝑 䝏 䞁 䜾 ☢ ሙ 䛜 ኱ 䛝 䛔
䛧䚸c ㍈┦㛵䝢䞁䝙䞁䜾䛜ᐇ㦂ⓗ䛻ホ౯䛥䜜䛶䛝䛯䚹䛣䛣䛷䛿
YBCO+BZO (4wt%)䚸YBCO+BHO (6wt%)ⷧ⭷䛷䛿㧗☢ሙ
Jc 䜔䜾䝷䝇ᾮయ㌿఩ ᗘ䛜 ᐃ䛥䜜䚸c ㍈┦㛵䝢䞁䛻≉ᚩⓗJc 䛜኱䛝䛟ྥୖ䛧䛯䚹䜎䛯 Fp,max 䛜ほᐹ䛥䜜䛯☢ሙ䜒䝬䝑䝏䞁䛺 Jc 䛾☢ሙ౫Ꮡᛶ䜔┦㌿⛣⮫⏺ᣦᩘ䛜ほᐹ䛥䜜䛯䚹䜎䛯䜾☢ሙ䛸䛸䜒䛻ቑຍ䛧䛯䚹ᙜ᪥䛿䝬䝑䝏䞁䜾☢ሙ䛸せ⣲䝢䞁ຊ䜢䜒䛸䛻 Jc 䛚䜘䜃୙ྍ
YBCO ⷧ⭷䛻 APC 䛷䛒䜛 BaMO3(BMO; M=Zr, Sn, Hf etc.)䝘䝜䝻䝑䝗䜢ᑟධ䛩䜛䛸ᙉ䛔 c ㍈┦㛵䝢䞁䛸䛧䛶ᶵ⬟䛩䜛䛣䛸䛜㏫☢ሙ䛾Ỵᐃ䝯䜹䝙䝈䝮䜢ヲ⣽䛻㆟ㄽ䛩䜛䚹᫂䜙䛛䛻䛥䜜䛯䚹YBCO ⷧ⭷䛻䛚䛔䛶䝢䞁䝙䞁䜾䛻ᨭ㓄ⓗ䛺㌿఩䛸ẚ䜉䛶䝃䜲䝈䛜኱䛝䛟䚸ᐦᗘ䜒 1 䜿䝍௨ୖ኱䛝䛔䛯䜑䚸
1.2☢ሙ୰ Jc 䛜኱䛝䛟ྥୖ䛩䜛䚹Jc 䛾☢ሙゅᗘ౫Ꮡᛶ䛻䛚䛡䜛 c
BSO(3wt%)
BHO(6wt%)㍈䝢䞊䜽䜔 Jc 䜔୙ྍ㏫☢ሙ᭤⥺䛻䛚䛡䜛䝬䝑䝏䞁䜾☢ሙ㏆1ഐ䛷䛾␗ᖖ䛺᣺䜛⯙䛔䛜ほᐹ䛥䜜䛶䛚䜚䚸ᙉ䛔 c ㍈┦㛵䝢䞁ຠᯝ䜢♧䛧䛶䛔䜛䚹䛧䛛䛧⌧᫬Ⅼ䛷䛿 c ㍈┦㛵䝢䞁ᶵᵓ䛾ゎ
0.8
᫂䛻䛿⮳䛳䛶䛚䜙䛪䚸YBCO+BMO ⷧ⭷䛻䛚䛔䛶☢᮰䝢䞁䝙䞁䜾≉ᛶ䜢ヲ⣽䛻㆟ㄽ䛧䛶䛔䛟ᚲせ䛜䛒䜛䚹
0.6ᮏ◊✲䛷䛿 YBCO+BMO ⷧ⭷䛾 Jc ≉ᛶ䛚䜘䜃୙ྍ㏫☢
ሙ≉ᛶ䜢㆟ㄽ䛩䜛䚹BMO ᮦᩱ䜔 BMO ῧຍ㔞䜢ኚ໬䛥䛫䜛䛣
0.4
䛸䛻䜘䜚䚸䝘䝜䝻䝑䝗䛾䝃䜲䝈䞉ᐦᗘ䞉⏺㠃≧ែ䛜ኚ໬䛩䜛䚹䛥䜎
0.2
䛦䜎䛺 BMO ᮦᩱ䜔 BMO ῧຍ㔞䜢⏝䛔䛶 YBCO+BMO ⷧ⭷䜢స〇䛩䜛䛣䛸䛻䜘䜚䚸BMO 䝘䝜䝻䝑䝗䛾ᵓ㐀䝟䝷䝯䞊䝍䜢0ኚ໬䛥䛫䜛䚹䛣䛾䜘䛖䛻䛧䛶స〇䛧䛯ヨᩱ䛾 Jc 䜔୙ྍ㏫☢ሙ䜢ᐃ䛩䜛䛣䛸䛻䜘䜚ᐦᗘ䞉䝃䜲䝈䞉⏺㠃≧ែ䛾ຠᯝ䜢ほᐹ䛩䜛
0
2
4
6
8
10
䛣䛸䛜䛷䛝䜛䚹⤖ᯝ䜢䜒䛸䛻 BMO 䝘䝜䝻䝑䝗䛾 c ㍈┦㛵䝢䞁䝙
Magneticfield(T)䞁䜾䝯䜹䝙䝈䝮䜢㆟ㄽ䛩䜛䚹㻞䠊ᐇ㦂᪉ἲ
YBCO+BMO ⷧ⭷స〇䛻䛿䝟䝹䝇䝺䞊䝄䞊⵨╔(PLD)䜢
⏝䛔䛯䚹ᇶᯈ䛻 SrTiO3(100)༢⤖ᬗ䜢⏝䛔䚸YBCO+BaZrO3(BZO)䚸YBCO+BaSnO3 㻌 (BSO)䚸YBCO+BaHfO3(BHO)ΰྜ
䝍䞊䝀䝑䝖䛻䜘䜚 BMO 䝘䝜䝻䝑䝗䜢ᑟධ䛧䛯䚹䛺䛚ῧຍ㔞䛿 3
䠉8 wt%䛸䛧䛯䚹㏱㐣ᆺ㟁Ꮚ㢧ᚤ㙾䜔 X ⥺ᅇᢡ䛻䜘䜚ⷧ⭷䛾ᵓ 㐀 䜢 ホ ౯ 䛧 䛯 䚹 䛥 䜙 䛻 Physical Property Measurement
System(PPMS)䜢⏝䛔䛶ⷧ⭷䛾㉸ఏᑟ≉ᛶ䛾ホ౯䜢⾜䛳䛯䚹
20-77 K 䛻䛚䛡䜛 Jc䇲B ≉ᛶ䚸77 K 䛻䛚䛡䜛 Jc 䛾☢ሙゅᗘ౫Ꮡᛶ䚸B//c 䛻䛚䛡䜛୙ྍ㏫ ᗘ(Tirr)䜢 ᐃ䛧䚸䛭䜜䜙䜢䜒䛸䛻☢᮰䝢䞁䝙䞁䜾䝯䜹䝙䝈䝮䜢㆟ㄽ䛧䛯䚹

Fig.1 Fp/Fp,max-B curves in the YBCO+BSO (3 wt%),
YBCO+BZO (4 wt%), and YBCO+BHO (6 wt%) films.
ཧ⪃ᩥ⊩㻌
1. D. R. Nelson, V. M. Vinokur: Phys. Rev. B Vol. 48(1993) p.
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2C-a06

MgB2 (2)㻹㼓㻮㻞 ⥺䛾⮫⏺㟁ὶ≉ᛶ䛻ᙳ㡪䛩䜛᧍䜚⥺ຍᕤ䛻క䛖ῶ㠃ຠᯝ䛾ᐃ㻌㻹㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌㼛㼒㻌㼐㼞㼍㼣㼕㼚㼓㻌㼑㼒㼒㼑㼏㼠㻌㼕㼚㻌㼠㼣㼕㼟㼠㻌㼜㼞㼛㼏㼑㼟㼟㻌㼍㼚㼐㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼐㼑㼚㼟㼕㼠㼥㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼛㼒㻌㻹㼓㻮㻞㻌㼣㼕㼞㼑㻌ⴱ㻌 㞞ᚿ䠈Ᏻ⸨㻌 ᠇அ௓䠈Ỉⴠ㻌 ✵䠈㧗ᑿ㻌 ᬛ᫂䠈㇂㈅㻌 ๛䠄ୖᬛ኱䠅䠗᪂෠㻌 Ꮥ࿴䠈ᵞ⏣㻌 ᗣ༤䠄㻷㻱㻷䠅䠗℈ᓥ㻌 㧗ኴ㑻䠈ὠ⏣㻌 ⌮䠈ᐑᇛ㻌 ኱㍜䠄ᮾ໭኱䠅䠗ⰼ⏣㻌 ୍☻䠄ඵᡞᕤ኱䠅䠗ᒾᇛ㻌 ຾ஓ䠄ᒾ㇂⏘ᴗ䠅䠗㥖㎸㻌 ᩄᘯ䠄๓ᕝ〇సᡤ䠅㻌㻷㻭㼀㻿㼁㻾㻭㻌㻹㼍㼟㼍㼟㼔㼕䠈㻭㻺㻰㻻㻌㻷㼑㼚㼚㼛㼟㼡㼗㼑㻘㻌㻹㻵㼆㼁㻻㻯㻴㻵㻌㻿㼛㼞㼍䠈㼀㻭㻷㻭㻻㻌㼀㼛㼙㼛㼍㼗㼕䠈㼅㻭㻳㻭㻵㻌㼀㼟㼡㼥㼛㼟㼔㼕㻌㻔㻿㼛㼜㼔㼕㼍㻌㼁㼚㼕㼢㻚㻕㻧㻌 㻌㻿㻴㻵㻺㼀㻻㻹㻵㻌㼀㼍㼗㼍㼗㼍㼦㼡䠈㻹㻭㻷㻵㻰㻭㻌㼅㼍㼟㼡㼔㼕㼞㼛㻌㻔㻷㻱㻷㻕㻧㻌㻴㻭㻹㻭㻶㻵㻹㻭㻌㼀㼍㼗㼍㼠㼍㼞㼛䠈㼀㻿㼁㻰㻭㻌㻹㼍㼗㼛㼠㼛䠈㻹㻵㼅㻭㻳㻵㻌㻰㼍㼕㼟㼡㼗㼑㻌㻔㼀㼛㼔㼛㼗㼡㻌㼁㼚㼕㼢㻚㻕㻧㻌㻴㻭㻺㻭㻰㻭㻌㻷㼍㼦㼡㼙㼍㻌㻔㻴㻵㼀㻌㼁㼚㼕㼢㻚㻕㻧㻌㻵㼃㻭㻷㻵㻌㻷㼍㼠㼟㼡㼥㼍㻌㻔㻵㼣㼍㼠㼍㼚㼕㻕㻧㻌㻷㻻㻹㻭㻳㻻㻹㻱㻌㼀㼛㼟㼔㼕㼔㼕㼞㼛㻌㻔㻹㼍㼥㼑㼗㼍㼣㼍㻕㻱㻙㼙㼍㼕㼘㻦㻌㼟㼡㼠㼘㼍㻚㼗㼍㼠㼟㼡㼞㼍㻬㼓㼙㼍㼕㼘㻚㼏㼛㼙㻌㻝䠊䛿䛨䜑䛻㻌
ᡃ䚻䛿෌⏕ྍ⬟䜶䝛䝹䜼䞊䜢᭷ຠ฼⏝䛩䜛䛯䜑䛾䝅䝇䝔䝮䛸䛧䛶䚸ඛ➃㉸ఏᑟ㟁ຊኚ᥮䝅䝇䝔䝮㻔㻭㻿㻼㻯㻿䠖㻭㼐㼢㼍㼚㼏㼑㼐㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㻼㼛㼣㼑㼞㻌 㻯㼛㼚㼐㼕㼠㼕㼛㼚㼕㼚㼓㻌 㻿㼥㼟㼠㼑㼙㻕䜢ᥦ᱌䛧䛶䛔䜛䚹㻭㻿㻼㻯㻿 䛿 㻿㻹㻱㻿䚸⇞ᩱ㟁ụ䚸㟁Ẽศゎ⿦⨨䛛䜙ᵓᡂ䛥䜜䚸䛣䜜䜙䛾⤌䜏ྜ䜟䛫䛻䜘䜚ኴ㝧ගⓎ㟁䛺䛹䛾෌⏕ྍ⬟䜶䝛䝹䜼䞊※䛾ኚືฟຊ䜢ไᚚ䛩䜛㼇㻝㼉䚹㻭㻿㻼㻯㻿 䛻⏝䛔䜛 㻿㻹㻱㻿 䝁䜲䝹䛾⥺ᮦ䛻䛿䚸Ᏻ౯䛷ᑗ᮶ᛶ䛜ぢ㎸䜎䜜䛶䛔䜛 㻹㼓㻮㻞 ⥺ᮦ䜢᳨ウ䛧䛶䛔䜛䛜䚸㻹㼓㻮㻞 ⥺ᮦ䜢 㻿㻹㻱㻿 䝁䜲䝹䛻ᛂ⏝䛩䜛䛻䛿኱ᐜ㔞໬䛜ᚲ㡲䛷䛒䜚䠈䛭䛾䛯䜑᧍⥺ຍᕤ䛜㔜せ䛸䛺䜛䚹䛭䛣䛷䠈㻹㼓㻮㻞 ᧍⥺䛾ῶ㠃ຍᕤ䛻䜘䜛 㻶㼏 䜈䛾ᙳ㡪䜢ㄪᰝ䛧䛯䚹㻌㻞䠊ヨ㦂᪉ἲ㻌㻴㼥㼜㼑㼞㼀㼑㼏㼔 ♫䛾 㻹㼓㻮㻞 ⥺ᮦ䠄⥺ᚄ 㻜㻚㻤㻟㻌㼙㼙䚸㻟㻜 䝣䜱䝷䝯䞁䝖䠅䜢⏝䛔䛶 㻹㼓㻮㻞 ᧍⥺䠄㻟 ᮏ᧍䜚䠅䜢సᡂ䛧䚸䝎䜲䝇䛻㏻䛧䛶ῶ㠃ຍᕤ䜢᪋䛧䛯䚹䛭䛾ᚋ᧍⥺䜢ゎ䛧䚸㻝 ᮏ䛪䛴䝞䝷䝞䝷䛾≧ែ䛷⇕ฎ⌮䛧䛯䚹䝃䞁䝥䝹䛾సᡂ᮲௳䜢 㼀㼍㼎㼘㼑㻌㻝 䛻䚸䜎䛯䝃䞁䝥䝹᩿㠃䜢◊☻䛧ほᐹ䛧䛯෗┿䜢 㻲㼕㼓㻚㻝 䛻♧䛩䚹㻌䝃䞁䝥䝹䛾 㻶㼏 䛿䚸䝠䝇䝔䝸䝅䝇䝹䞊䝥䛾᣺ᖜ䂴㻹 䛻ẚ౛䛩䜛㼇㻞㼉䚹䛭䛾䛯䜑䚸ྛ䝃䞁䝥䝹 㻭㻝䡚㻭㻢 䛾䂴㻹 䜢ẚ㍑䛩䜛䛣䛸䛷䚸㻶㼏 ≉ᛶ䛾ኚ໬䜢 ᐃ䛩䜛䛣䛸䛜䛷䛝䜛䚹䛭䛣䛷䚸䛭䜜䛮䜜䛾䝃䞁䝥䝹䜢 㻡㻌 㼙㼙 㛗䛻ษ䜚ฟ䛧䚸㻽㼡㼍㼚㼠㼡㼙㻌 㻰㼑㼟㼕㼓㼚 ♫䛾 㻼㻼㻹㻿㻌㻔㻼㼔㼥㼟㼕㼏㼍㼘㻌 㻼㼞㼛㼜㼑㼞㼠㼥㻌 㻹㼑㼍㼟㼡㼞㼑㼙㼑㼚㼠㻌 㻿㼥㼟㼠㼑㼙㻕㻌 䜢⏝䛔䛶☢໬䜢ᐃ䛧䛯䚹䛺䛚እ㒊☢⏺䛿㻙㻡䡚㻡㻌㼀 䛷䛒䜚䚸 ᐃ ᗘ䛿 㻠㻚㻞㻘㻌㻞㻜㻘㻌㻠㻡㻌㻷 䛷䛒䜛䚹㼀㼏 ௨ୖ䛷䛒䜛 㻠㻡㻌㻷 䛷 ᐃ䛧䛯⌮⏤䛿䚸䝃䞁䝥䝹䛻ྵ䜎䜜䜛䝰䝛䝹䛾☢໬䜢 ᐃ䛧䛶䚸䝃䞁䝥䝹඲య䛾☢໬䛛䜙䝰䝛䝹䛾☢໬䜢䜻䝱䞁䝉䝹䛩䜛䛯䜑䛷䛒䜛䚹㻌

㻭㻝㻌
㻭㻞㻌
㻭㻟㻌
㻭㻠㻌
㻭㻡㻌
㻭㻢㻌
A1

A2

A4

A5

A3

A6

㻟䠊

㻲㼕㼓㻚㻝㻌㼀㼔㼑㻌㼜㼔㼛㼠㼛㼓㼞㼍㼜㼔㻌㼛㼒㻌㼜㼛㼘㼕㼟㼔㼑㼐㻌㼏㼞㼛㼟㼟㻙㼟㼑㼏㼠㼕㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌㼍㼚㼍㼘㼥㼦㼑㼐㻌㻹㼓㻮㻞㻌㼣㼕㼞㼑㼟㻌ㅰ㎡㻌ᮏ◊✲䛿 㻶㻿㼀 ඛ➃ⓗపⅣ⣲໬ᢏ⾡㛤Ⓨ஦ᴗ䠄㻭㻸㻯㻭䠅䛾ຓᡂ䜢ཷ䛡䚸ᐇ᪋䛧䛯䜒䛾䛷䛒䜛䚹㻌ཧ⪃ᩥ⊩㻌㻝㻚 㼀㻚㻌 㻴㼍㼙㼍㼖㼕㼙㼍㻘㻌 㼑㼠㻌 㼍㼘㻚㻘㻌 㻭㼜㼜㼘㼕㼏㼍㼠㼕㼛㼚㻌 㼛㼒㻌 㻿㻹㻱㻿㻌 㼍㼚㼐㻌 㻲㼡㼑㼘㻌 㻯㼑㼘㼘㻿㼥㼟㼠㼑㼙㻌㻯㼛㼙㼎㼕㼚㼑㼐㻌㼣㼕㼠㼔㻌㻸㼕㼝㼡㼕㼐㻌㻴㼥㼐㼞㼛㼓㼑㼚㻌㼂㼑㼔㼕㼏㼘㼑㻌㻿㼠㼍㼠㼕㼛㼚㻌㼠㼛㻾㼑㼚㼑㼣㼍㼎㼘㼑㻌㻱㼚㼑㼞㼓㼥㻌㻯㼛㼚㼠㼞㼛㼘㻘㻌㻵㻱㻱㻱㻌㼀㼞㼍㼚㼟㻚㻌㻭㼜㼜㼘㻚㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㻚㻘㻞㻞㻌㻔㻞㻜㻝㻞㻕㻌㻡㻣㻜㻝㻣㻜㻠㻚㻞㻚 㻹㻚㻺㻚㻌 㼃㼕㼘㼟㼛㼚㻘㻌 㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌 㻹㼍㼓㼚㼑㼠㼟㻚㻌 㻻㼤㼒㼛㼞㼐㻦㻯㼘㼍㼞㼑㼚㼐㼛㼚㻌㻼㼞㼑㼟㼟㻘㻌㻝㻥㻤㻟㻚̿̿

120
A2 (4.2 K)
A3 (4.2 K)
A4 (4.2 K)
A5 (4.2 K)
A6 (4.2 K)

100'M/'MA1 [%]ᐃ⤖ᯝ䛸䜎䛸䜑㻌㻭㻝 䛾䂴㻹 䜢ᇶ‽䛸䛧䛯䚸ྛ䝃䞁䝥䝹䛾䂴㻹㻌 㻔㻶㼏㻕㻌 䛾ẚ㍑䜢㻲㼕㼓㻚㻌 㻞 䛻♧䛩䚹㻠㻚㻞㻌 㻷䚸㻌 㻙㻝㻌 㼀 䛻䛚䛔䛶䚸㻭㻝 䛸ẚ䜉䛶 㻭㻞䡚㻭㻢䛿 㻝㻜㻜㻌㻑䛛䜙 㻥㻣㻘㻌㻤㻠㻘㻌㻤㻜㻘㻌㻣㻢㻘㻌㻣㻜㻌㻑䛻ຎ໬䛧䛯䚹䛴䜎䜚䚸䝎䜲䝇ᚄ䛜䜘䜚⣽䛛䛟䛺䜚䚸䝃䞁䝥䝹᩿㠃䛜኱䛝䛟ኚᙧ䛩䜛䜋䛹䚸㟁ὶ≉ᛶ䛜ᝏ䛟䛺䜛䛣䛸䛜䜟䛛䜛䚹䜎䛯䚸㻜㻌 㼀 ௜㏆䛸㻙㻡㻌 㼀 ௜㏆䛷ഴྥ䛜஘䜜䛯䚹䛣䛾ཎᅉ䛸䛧䛶䚸๓⪅䛿䝣䝷䝑䜽䝇䝆䝱䞁䝥䛾ᙳ㡪䛻䜘䜚䚸ᚋ⪅䛿እ㒊☢ሙ䛾ቑῶ䛜㏫㌿䛧䚸㐽ⶸ㟁ὶ䛾ྥ䛝
䛜㏫㌿䛧䛯䛯䜑䚸☢໬ ᐃ䛻஘䜜䛜⏕䛨䛯䛣䛸䛜⪃䛘䜙䜜䜛䚹௒ᚋ䛿㛗ᑻ䝃䞁䝥䝹䛻ᑐ䛧䛶㏻㟁ヨ㦂䜢⾜䛳䛶ᐇ㝿䛻 㻵㼏 䜢ᐃ䛧䚸䜎䛯௒ᅇᚓ䜙䜜䛯ຎ໬⋡䛸୍⮴䛩䜛䛛☜ㄆ䛩䜛䚹㻌㻿㼍㼙㼜㼘㼑㻌
㻺㼛㻚㻌㼀㼍㼎㼘㼑㻌㻝㻌㻯㼛㼚㼐㼕㼠㼕㼛㼚㼟㻌㼛㼒㻌㻿㼍㼙㼜㼘㼑㻌㼀㼣㼕㼟㼠㼑㼐㻌㻿㼍㼙㼜㼘㼑㻌㻰㼕㼑㻌㻰㼕㼍㼙㼑㼠㼑㼞㻌㼀㼣㼕㼟㼠㻌
㻻㼡㼠㼑㼞㻌㻰㼕㼍㼙㼑㼠㼑㼞㻌㼇㼙㼙㼉㻌㻼㼕㼠㼏㼔㻌
㼇㼙㼙㼉㻌㻔㻭㼒㼠㼑㼞㻌
㻸㼑㼚㼓㼠㼔㻌
㻔㻮㼑㼒㼛㼞㼑㻌
㼇㼙㼙㼉㻌㼜㼞㼛㼏㼑㼟㼟㼕㼚㼓㻕㻌㼜㼞㼛㼏㼑㼟㼟㼕㼚㼓㻕㻌㻺㼛㻌㼀㼣㼕㼟㼠
㻜㻚㻤㻟㻌
㻜㻚㻤㻟㻌
㻔㻿㼠㼞㼍㼕㼓㼔㼠㻕
㻝㻚㻣㻣㻌
㻝㻟㻚㻡㻌
㻝㻚㻣㻣㻌
㻔㻺㼛㻌㻾㼑㼐㼡㼏㼠㼕㼛㼚㻌㻼㼞㼛㼏㼑㼟㼟㻕㻌
㻝㻟㻚㻡㻌
㻝㻚㻣㻣㻌
㻝㻚㻢㻡㻌
㻝㻟㻚㻡㻌
㻝㻚㻣㻣㻌
㻝㻚㻡㻡㻌
㻝㻟㻚㻡㻌
㻝㻚㻣㻣㻌
㻝㻚㻠㻡㻌
㻝㻟㻚㻡㻌
㻝㻚㻣㻣㻌
㻝㻚㻟㻡㻌

80

60

–4

–2

0

External Magnetic Field [T]㻲㼕㼓㻚㻞㻌㼀㼔㼑㻌㼏㼛㼙㼜㼍㼞㼕㼟㼛㼚㻌㼛㼒㻌㼠㼔㼑㻌䌚㻹㼟㻌㻔㻶㼏㻕㻌㼍㼠㻌㻠㻚㻞㻌㻷㻌

第92回

2015年度秋季低温工学・超電導学会

2C-a07

MgB2 (2)ෆ㒊 㻹㼓 ᣑᩓ㻔㻵㻹㻰㻕ἲ䛻䜘䜛 㻹㼓㻮㻞 ⥺ᮦ䛾㉸㟁ᑟ᥋⥆㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㼖㼛㼕㼚㼠㼟㻌㼙㼍㼐㼑㻌㼣㼕㼠㼔㻌㼕㼚㼠㼑㼞㼚㼍㼘㻌㻹㼓㻌㼐㼕㼒㼒㼡㼟㼕㼛㼚㻔㻵㻹㻰㻕㻌㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻹㼓㻮㻞㻌㼣㼕㼞㼑㼟

Critical current Ic(A)㻌⇃಴ᾈ᫂䠈ⴥ㻌 ⾡㌷䠄≀㉁䞉ᮦᩱ◊✲ᶵᵓ䠅䠗㰺⸨♸ு䠄Ⱚᾆᕤ኱䠅㻌
KUMAKURA Hiroaki䠈YE ShuJun(NIMS); SAITO Yusuke(Shibaura Inst. Tech.)E-mail: KUMAKURA.Hiroaki@nims.go.jp㻌㻌㻝䠊䛿䛨䜑䛻㻌
♧䛩䛣䛸䛜䜟䛛䜛䚹䛣䜜䛿㕲䝅䞊䝇䜢ྲྀ䜚㝖䛟䛸䛝䛻Bᒙ䜒๤㞳ᡃࠎࡣࠊ㧗࠸ MgB2 ࡢ඘ሸ⋡ࡀᚓࡽࢀࡿෆ㒊 Mg ᣑᩓ䛥䜜䜛䛾䛜ᙳ㡪䛧䛶䛔䜛䛸⪃䛘䜙䜜䜛䚹௒ᅇᚓ䜙䜜䛯᭱኱䛾Ic
㸦internal Mg diffusion, IMD㸧ἲࢆ㐺⏝ࡋ࡚ MgB2 ⥺ᮦࡢ㛤䛿䚸IMD⥺ᮦ⮬㌟䛾Ic 䜘䜚䜒⣙୍᱆ᑠ䛥䛔䛜䚸౛䛘䜀3T䛻䛚
Ⓨࢆ㐍ࡵ࡚࠸ࡿࠋࡇࢀࡲ࡛࡟ࠊ㧗ရ఩ࡢ࣮࢝࣎ࣥࢥ࣮ࢺ
䛡䜛᥋⥆㒊䛾Ic䛿IMD⥺ᮦ䛾10T䛻䛚䛡䜛Ic䛻䜋䜌➼䛧䛔䛣䛸
䛛䜙䚸IMD⥺ᮦ䛷స〇䛧䛯䝬䜾䝛䝑䝖䛾ሙྜ䚸䛣䛾᥋⥆㒊䜢䝬ࡉࢀࡓࢼࣀ B ⢊ᮎࡸࠊB ⢊ᮎ࡬ࡢࢥࣟࢿࣥ(C24H12)ῧຍ࡟
䜾䝛䝑䝖䛾☢⏺䛾ప䛔㒊ศ䛻ᣢ䛳䛶䛟䜜䜀䚸⌧ᅾ䛷䛾≉ᛶ䛷ࡼࡾࠊ⮫⏺㟁ὶᐦᗘ Jc ࡀ኱ᖜ࡟ྥୖࡍࡿࡇ࡜ࢆぢฟࡋࠊ䜒㉸㟁ᑟ᥋⥆䛸䛧䛶౑⏝ྍ⬟䛷䛒䜛䛸⪃䛘䜙䜜䜛䚹㻌
4.2Kࠊ10T ࡛ 10 ୓ A/cm2 ࢆ㉸࠼ࡿ Jcࠊ࡞ࡽࡧ࡟ 1 ୓ A/cm2⤌⧊ほᐹ䛾⤖ᯝ䚸஧䛴䛾ヨᩱ䛜୍య໬䛧䛶䛔䜛䛾䛜䜟䛛ࢆ㉸࠼ࡿ࢚ࣥࢪࢽ࢔ࣜࣥࢢ Jc (Je)ࢆᚓ࡚࠸ࡿࠋ
[1,2]ࠋࡲࡓࠊ
䛳䛯䛜䚸B䝸䝑䝏䛺໬ྜ≀䛜ከ䛟䜏䜙䜜䚸MgB2 䛾๭ྜ䛿ẚ㍑
ࡇࡢෆ㒊 Mg ᣑᩓἲ࡟ࡼࡗ࡚ 37 ⰺࡲ࡛ࡢ MgB2 ⥺ᮦࡢస
〇ࡸࠊJe ቑຍ࡟ຠᯝࡢ࠶ࡿ IMD ἲ࡜ PIT ἲࡢࣁ࢖ࣈࣜࢵ
ⓗᑡ䛺䛛䛳䛯䚹⌧ᅾ䚸㉸㟁ᑟ᥋⥆స〇᫬䛾䝥䝺䝇ᅽ䚸᥋⥆㒊ศ䛾㛗䛥䛺䛹䚸ᗄ䛴䛛䛾䝟䝷䝯䞊䝍䛾᭱㐺໬䜢ᅗ䛳䛶䛚䜚䚸䛣ࢺἲࡢ㛤Ⓨ࡞࡝ࡶ㐍ࡵ࡚ࡁࡓࠋ௒ᅇࡣࠊ༢ⰺࡢ IMD ⥺ᮦ䜜䛻䜘䛳䛶ᮏ㉸㟁ᑟ᥋⥆䛾Ic䛾ྥୖ䛜ᚓ䜙䜜䜛䛸⪃䛘䛶䛔䜛䚹㻌ࢆ⏝࠸࡚ࠊỌஂ㟁ὶ࣮ࣔࢻ࡛ࡢ㐠㌿࡟୙ྍḞ࡞㉸㟁ᑟ᥋⥆ࢆヨࡳࡓࡢ࡛ሗ࿌ࡍࡿࠋ㻌㻌㻞䠊ᐇ㦂᪉ἲ㻌
Fig. 1 䛻䚸௒ᅇヨ䜏䛯 IMD ἲ⥺ᮦ䛾㉸㟁ᑟ᥋⥆䛾స〇ἲ䜢♧䛩䚹ᚄ 0.8mm 䛾 IMD ἲ䛷స〇䛧䛯㕲䝅䞊䝇༢ⰺ୸⥺ᮦ䛾୍➃(㛗䛥䡚1cm)䜢ᖹ䝻䞊䝹䛻ᣳ䜣䛷䝥䝺䝇䛧䛶䝔䞊䝥≧䛸䛧䚸∦᪉䛾㠃䛾㕲䝅䞊䝇ᮦ䜢䜾䝷䜲䞁䝎䞊䛷๐䛳䛶ྲྀ䜚㝖䛝䚸B ⢊ᮎᒙ䜢㟢ฟ䛥䛫䛯䚹䛣䛾䜘䛖䛺⥺ᮦヨᩱ䜢஧ᮏ⏝ព䛧䚸஫䛔䛻 B ᒙ䛾㠃䛜ྥ䛝ྜ䛖䜘䛖䛻㔜䛽ྜ䜟䛫䛶䚸ᖹ䛯䛟䛴䜆䛧䛯㔠ᒓ⟶ෆ䛻ᤄධ䛧䚸䛣䛾㒊ศ䜢Ἔᅽ䝥䝺䝇䛷ᅽ⦰䛧䛶䚸஧ᮏ䛾⥺ᮦ䛾ඛ➃㒊ศ䛾⤖ྜ䜢ᨵၿ䛥䛫䛯䚹᭱ᚋ䛻┿✵୰䛷
670oC, 6 ᫬㛫䛾⇕ฎ⌮䜢⾜䛳䛯䚹䛣䛾⇕ฎ⌮᮲௳䛿䚸MgB2⥺ᮦ䛾⇕ฎ⌮᮲௳䛸ྠ୍䛷䛒䜛䚹ᚓ䜙䜜䛯㉸㟁ᑟ᥋⥆䛾౛䜢
Fig. 2 䛻♧䛩䚹᥋⥆㒊ศ䛻ὶ䜜䜛⮫⏺㟁ὶ Ic 䛿䚸⥺ᮦ䛾ሙྜ䛸ྠᵝ䛾᪉
Fig.2 Superconducting joints fabricated with IMD processedἲ䛻䜘䜚䚸4.2K䚸✀䚻䛾☢⏺୰䛷ᅄ➃Ꮚ᢬ᢠἲ䛷ホ౯䛧䛯䚹
MgB2 wires.
㟁ᅽ䝸䞊䝗䛿 Fig.2 䛻♧䛧䛯⥺ᮦ㒊ศ䛻䝝䞁䝎௜䛡䛧䛯䚹☢⏺
䛿䝥䝺䝇䛧䛯㠃䛻ᖹ⾜䚸㟁ὶ䛾᪉ྥ䛸䛿ᆶ┤䛻༳ຍ䛧䛯䚹᥋
100
⥆㒊䛾 I-V ≉ᛶ䛿 IMD ⥺ᮦ䛸ྠ䛨䜘䛖䛻䛒䜛㟁ὶ್䜎䛷䛿㟁ᅽ䛿ㄆ䜑䜙䜜䛪䚸㟁ὶ䛜䛒䜛್䜢㉺䛘䜛䛸㟁ᅽ䛜ほ 䛥䜜䛯䚹W ire
Ic 䜢 1 ȝV 䛾㟁ᅽ䛜Ⓨ⏕䛩䜛㟁ὶ䛷ᐃ⩏䛧䛯䚹⮫⏺㟁ὶ䜢ホ౯䛧䛯ᚋ䚸᥋⥆㒊ศ䛾⤌⧊䜢ගᏛ㢧ᚤ㙾䛷ほᐹ䛧䛯䚹10
 S.C. Joint㻌㻌

Fig.1 Fabrication of superconducting joint for IMD processed
MgB2 wire.
㻟䠊⤖ᯝཬ䜃⪃ᐹ㻌
Fig.3䛻᥋⥆㒊䛾Ic-H≉ᛶ䜢♧䛩䚹ẚ㍑䛾䛯䜑䛻䚸᥋⥆㒊స〇䛻⏝䛔䛯IMD⥺ᮦ䛾್䜒♧䛧䛯䚹௒ᅇ䛾᥋⥆㒊䛾Ic䛿䚸⥺ᮦ䛸ྠᵝ䛾☢⏺౫Ꮡᛶ䜢♧䛩䛜䚸䛛䛺䜚኱䛝䛺䝞䝷䝒䜻䜢㻲㼕㼓㻚㻞㻌㻶㼏㻙㻮㻌㼏㼡㼞㼢㼑㼟㻌㼛㼒㻌㻵㻹㻰㻙㼜㼞㼛㼏㼑㼟㼟㼑㼐㻌㻹㼓㻮㻞㻌㼣㼕㼞㼑㼟
㻌
1
㻌
㻌
4.2K
㻌
0.1
㻌
0
2
4
6
8
10
12
Magnetic field B(T)㻌㻌
Fig.3 Ic-H properties of superconducting joints fabricated with
IMD processed MgB2 wires.
㻌ཧ⪃ᩥ⊩[1] Ye S-J et al.: Supercond. Sci. Technol. 26 (2013) 125003[2] Ye S-J et al.: Supercond. Sci. Technol. 27 (2014) 085012
ㅰ㎡䚷ᮏ◊✲䛿JSTඛ➃ⓗపⅣ⣲໬ᢏ⾡㛤Ⓨ஦ᴗ㻌(ALCA)䛾ຓᡂ䜢ཷ䛡䛯䚹

̿̿

第92回

2015年度秋季低温工学・超電導学会

2C-a08

MgB2 (2)㟁Ꮚ䝡䞊䝮⵨╔ 㻹㼓㻮㻞 ⷧ⭷䛾⮫⏺㟁ὶ≉ᛶ䛻୚䛘䜛 㻺㼕 ᑟධຠᯝ㻌㻌㻺㼕㻙㼐㼛㼜㼕㼚㼓㻌㼑㼒㼒㼑㼏㼠㼟㻌㼛㼚㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㼜㼞㼛㼜㼑㼞㼠㼕㼑㼟㻌㼕㼚㻌㼑㼘㼑㼏㼠㼞㼛㼚㻙㼎㼑㼍㼙㻙㼐㼑㼜㼛㼟㼕㼠㼑㼐㻙㻹㼓㻮㻞㻌㼠㼔㼕㼚㻌㼒㼕㼘㼙㼟㻌㻌ୗ⏣㻌 భኴ㑻䠈➉ཎ㻌 ᐶே䠈ᇼ஭㻌 ⁠䠈ᅵ஭㻌 ಇဢ䠄ி㒔኱Ꮫ䠅䠗ᴋ㻌 ᩄ᫂䠄᪥❧〇సᡤ䠅㻌㻿㻴㻵㻹㻻㻰㻭㻌㼅㼡㼠㼍㼞㼛䠈㼀㻭㻷㻱㻴㻭㻾㻭㻌㻴㼕㼞㼛㼠㼛䠈㻴㻻㻾㻵㻵㻌㻿㼔㼕㼓㼑㼞㼡䠈㻰㻻㻵㻌㼀㼛㼟㼔㼕㼥㼍㻌㻔㻷㼥㼛㼠㼛㻌㼁㼚㼕㼢㻕㻧㻌㻷㼁㻿㼁㻺㻻㻷㻵㻌㼀㼛㼟㼔㼕㼍㼗㼕㻌㻔㻴㼕㼠㼍㼏㼔㼕㻌㻸㼠㼐㻕㻌 㻌㻱㻙㼙㼍㼕㼘㻦㻌㼟㼔㼕㼙㼛㼐㼍㻚㼥㼡㼠㼍㼞㼛㻚㻢㻢㼑㻬㼟㼠㻚㼗㼥㼛㼠㼛㻙㼡㻚㼍㼏㻚㼖㼜㻌 㻌㻌㻝䠊 ᗎㄽ㻌
㼀㼏ྥୖຠᯝ㻔㼀㼍㼎㼘㼑㻌 㻝㻕䛜ᚓ䜙䜜䛯䚹䛺䛚䠈㛗᫬㛫䜰䝙䞊䝹䛻䜘㻌䜚䠈㼀㼏䛿䛥䜙䛻ᨵၿ䛧䠈䝞䝹䜽ヨᩱ䛻༉ᩛ䛩䜛㼀㼏㻔䡚㻟㻢㻌 㻷㻕䛜ᐇ㻹㼓㻮㻞 䛿䠈㔠ᒓ⣔㉸ఏᑟయ䛷᭱㧗䛾⮫⏺ ᗘ㻔㼀㼏㻩㻟㻥㻌 㻷㻕䜢⌧䛧䛯䚹䛭䛣䛷䠈㻺㼕㻙㼐㼛㼜㼑㼐㻌 㻹㼓㻮㻞 ⷧ⭷㻔㼀㼏㻌 㻩㻌 㻟㻝㻚㻠㻌 㻷㻕䛚䜘䜃᭷䛩䜛䛣䛸䛛䜙䠈ᾮయỈ⣲䜔෭෾ᶵ䜢฼⏝䛧䛯 㻞㻜㻌㻷 ㏆ഐ䛷䛾㻺㼕㻙㼘㼍㼥㼑㼞㻌㻹㼓㻮㻞ⷧ⭷㻔㼀㼏㻌㻩㻌㻟㻞㻚㻡㻌㻷㻕䛻ᑐ䛧䛶ྠᵝ䜰䝙䞊䝹䜢⾜䛳ᐇ⏝໬䛜ᮇᚅ䛥䜜䛶䛔䜛䚹ᡃ䚻䛿㟁Ꮚ䝡䞊䝮㻔㻱㻮㻕⵨╔ἲ䛷䛯䚹䛭䛾⤖ᯝ䠈䛹䛾ヨᩱ䛷䜒㻝㼔䜰䝙䞊䝹䛷䛿㢧ⴭ䛺㼀㼏ୖ᪼䜢㻭㼘 䝔䞊䝥ୖ䛻స〇䛧䛯 㻹㼓㻮㻞 ⷧ⭷䛜䠈㻠㻚㻞㻌㻷䠈㻝㻜㻌㼀 䛻䛚䛔䛶䠈♧䛧䠈㻡㻜㼔䜰䝙䞊䝹䛩䜛䛸䛭䜜䛮䜜㼀㼏䛿㻟㻠㻚㻟㻌 㻷㻔㼒㻌 㻩㻌 㻜㻚㻝㻕䠈㻟㻠㻚㻝㻌㻝㻌 㻹㻭㻛㼏㼙㻞 䜢㉸䛘䜛㧗䛔⮫⏺㟁ὶᐦᗘ㻔㻶㼏㻕䜢♧䛩䛣䛸㻔㻝㻕䜢ሗ࿌㻷㻔㻺㼕㻙㼘㼍㼥㼑㼞㻕䜎䛷ୖ᪼䛧䛯䚹㻌䛧䛯䚹䛣䛾㧗䛔 㻶㼏 䛿㉸㧗┿✵୰䞉ప 䛷䛾ⷧ⭷స〇䛻䜘䜚㻲㼕㼓㻚㻝䛻㻞㻜㻌 㻷䛻䛚䛡䜛㼍㼟㻙㼓㼞㼛㼣㼚ヨᩱ䛸㻡㻜㼔䜰䝙䞊䝹ヨᩱ䛾㻶㼏㻹㼓㻻 ┦䛾ᑡ䛺䛔⤖ᬗ⢏⏺䜔ᰕ≧⤌⧊䜢䜒䛴 㼏 ㍈㓄ྥ 㻹㼓㻮㻞䛾☢ሙ౫Ꮡᛶ䜢♧䛩䚹㻺㼕㻙㼐㼛㼜㼑㼐㻌㻹㼓㻮㻞ⷧ⭷㻔㼒㻌㻩㻌㻜㻚㻝㻕䠈㻺㼕㻙㼘㼍㼥㼑㼞㻌ⷧ⭷䛜ᚓ䜙䜜䛯䛣䛸䛻䜘䜛䚹䛧䛛䛧䠈ᛂ⏝䛜ᮇᚅ䛥䜜䜛 㻞㻜㻌 㻷 䛷㻹㼓㻮㻞ⷧ⭷䛸䜒䛻䜰䝙䞊䝹䛻䜘䜚㻶㼏䛿ྥୖ䛧䠈䛔䛪䜜䜒㻞㻜㻌㻷䞉㻡㻌㼀䛾☢ሙ୰ 㻶㼏 䛜䜎䛰༑ศ䛷䛿䛺䛔䚹䛭䛣䛷ᮏ◊✲䛷䛿㔞Ꮚ໬䛷㻶㼏㻌 䡚㻌 㻜㻚㻟㻌 㻹㻭㻛㼏㼙㻞䜢ᚓ䛯䚹䛣䛾㻶㼏ྥୖ䛿䜰䝙䞊䝹䛻䜘䜛㼀㼏☢᮰⥺䛾㐠ື䜢Ṇ䜑䜛᪉ἲ䛸䛧䛶᪂䛯䛺☢᮰䝢䞁䝙䞁䜾Ⅼ䛾ᨵၿ䛜୺䛯䜛⌮⏤䛸⪃䛘䜙䜜䜛䚹䜎䛯䠈㻶㼏䛾☢ሙ౫Ꮡᛶ䜢ẚ㍑
ᑟධ䜢┠ⓗ䛻䛧䠈䜰䞊䜽䝥䝷䝈䝬䜺䞁㻔㻭㻼㻳㻕䜢฼⏝䛧䛯 㻞 ✀㢮䛩䜛䛸䠈㻺㼕㻙㼘㼍㼥㼑㼞㻌㻹㼓㻮㻞ⷧ⭷䛷㻶㼏䛾ῶ⾶䛜㕌䛟䠈㻡㻌㼀௨ୖ䛾㧗☢
䛾 㻺㼕 ᑟධ䜢ヨ䜏䠈䛭䜜䛮䜜䛾 㻺㼕 ᑟධຠᯝ䜢᫂䜙䛛䛻䛧䛯䚹䜎ሙୗ䛷㻺㼕㻙㼐㼛㼜㼑㼐㻌 㻹㼓㻮㻞 ⷧ⭷䛾 㻶㼏 䜢ୖᅇ䛳䛯䚹䛣䛾⤖ᯝ䛿䠈ከ䛯䠈䛣䜜䜙䛾ヨᩱ䛻ᑐ䛧䛶䜰䝙䞊䝹䜢ヨ䜏䠈㻺㼕 䜢ᑟධ䛧䛯ᒙ䛻ᑟධ䛧䛯㻺㼕䛜䝢䞁䝙䞁䜾䝉䞁䝍䛸䛧䛶ᶵ⬟䛧䛶䛔䜛ྍ⬟ᛶ㻹㼓㻮㻞 ⷧ⭷䛾 㼀㼏䠈㻶㼏 䜈䛾ᙳ㡪䛻䛴䛔䛶䜒᫂䜙䛛䛻䛧䛯䚹㻌䜢♧၀䛧䛶䛔䜛䚹㻌㻌㻞䠊 ᐇ㦂᪉ἲ㻌㻌㼀㼍㼎㼘㼑㻌㻝㻌㼀㼏㻌㼢㼍㼘㼡㼑㼟㻌㼛㼒㻌㻺㼕㻙㼒㼞㼑㼑㻌㻘㻌㻺㼕㻙㼐㼛㼜㼑㼐㻌㻹㼓㻮㻞㻌㼠㼔㼕㼚㻌㼒㼕㼘㼙㼟㻌㻌㻱㻮 ⵨╔ἲ㻔ᇶᯈ㻦㻌㻿㼕䠈ᇶᯈ ᗘ㻦㻌㻞㻤㻜䉝㻕䛻䜘䜚 㻺㼕㻙㼒㼞㼑㼑㻌㻹㼓㻮㻞㻌㻌㼀㼏㻌㼇㻷㼉㻌
㻌㻌ⷧ⭷䛻ຍ䛘䛶䠈㻹㼓㻮㻞 ᡂ⭷䛸ྠ᫬䛻 㻺㼕 䜢ᑟධ䛧䛯 㻺㼕㻙㼐㼛㼜㼑㼐㻌㻿㼍㼙㼜㼘㼑 㼒㻌㼇㻴㼦㼉 㻹㼓㻦㻮㻦㻺㼕㼍㼟㻙㼓㼞㼛㼣㼚㻌 㻝㼔㻙㼍㼚㼚㼑㼍㼘㼑㼐㻌 㻡㻜㼔㻙㼍㼚㼚㼑㼍㼘㼑㼐㻹㼓㻮㻞 ⷧ⭷䠈䛚䜘䜃 㻺㼕 䛸 㻹㼓㻮㻞 䛸䜢஺஫䛻ᡂ⭷䛧䛯 㻟 ᒙ䛾㻺㼕㻙㼒㼞㼑㼑
㻌㻝㻦㻞㻚㻝㻦㻜
㻟㻡㻚㻜㻌
㻟㻡㻚㻟㻌
㻟㻢㻚㻝㻌
㻹㼓㻮㻞㻛㻺㼕 ᒙ䛛䜙䛺䜛 㻺㼕㻙㼘㼍㼥㼑㼞㻌㻹㼓㻮㻞 ⷧ⭷䜢స〇䛧䛯䚹ཎᩱ䛻䛿㻜㻚㻝㻝㻦㻝㻚㻣㻦㻜㻚㻜㻝
㻟㻝㻚㻠㻌
㻟㻞㻚㻤㻌
㻟㻠㻚㻟㻌
㻹㼓 㗪㐀ሢ䛸⤖ᬗᛶ 㻮 䜢⏝䛔䛯䚹㻺㼕 䛾ᑟධ㔞䛿 㻭㻼㻳 䛾࿘Ἴ㻜㻚㻟㻟 㻝㻦㻝㻚㻣㻦㻜㻚㻜㻞
㻞㻟㻚㻟㻌
㻞㻠㻚㻝㻌
ᩘ㻔㼒㻌 㻦㻌 㻝㻛㻝㻜㻌 㻴㼦䡚㻝㻌 㻴㼦㻕䛷ไᚚ䛧䛯䚹䜎䛯䠈୍㒊䛾ヨᩱ䛻䛴䛔㻺㼕㻙㼐㼛㼜㼑㼐
㻜㻚㻡㻝㻦㻞㻚㻟㻦㻜㻚㻜㻠
㻝㻥㻚㻡㻌
㻞㻜㻚㻡㻌
䛶䠈㉸㧗┿✵୰䛾䜰䝙䞊䝹㻔 ᗘ㻦㻠㻡㻜䉝䡚㻡㻡㻜䉝䠈᫬㛫㻦㻝㼔䡚㻝㻚㻜 㻝㻦㻞㻚㻟㻦㻜㻚㻜㻤
㻝㻟㻚㻡㻌
㻝㻡㻚㻜㻌
㻌㻌
㻡㻜㼔㻕䜢⾜䛳䛯䚹㻌㻺㼕㻙㼘㼍㼥㼑㼞
㻌㻝㻦㻞㻚㻝㻦㻜㻚㻜㻝
㻟㻞㻚㻡㻌
㻟㻠㻚㻜㻌
㻟㻠㻚㻝㻌
ᚓ䜙䜜䛯ヨᩱ䛻䛴䛔䛶 㼄 ⥺ᅇᢡ㻔㼄㻾㻰㻕 ᐃἲ䛻䜘䜚⏕ᡂ┦㻌䛾ྠᐃ䜢⾜䛔䠈໬Ꮫ⤌ᡂ䜢ㄏᑟ⤖ྜ䝥䝷䝈䝬㻔㻵㻯㻼㻕Ⓨගศග㼄㻾㻰 ᐃ䛛䜙䛔䛪䜜䛾ヨᩱ䛻䛚䛔䛶䜒䠈㻔㻜㻜㻝㻕䠈㻔㻜㻜㻞㻕䝢䞊䜽䛾䜏䛜ほ 䛥䜜䛶䛔䜛䛣䛸䛛䜙䠈㻹㼓㻮㻞 䛜㼏 ㍈㓄ྥ䛧䛶䛔䜛䛣䛸䛜☜ㄆ䛷䛝䛯䚹㻺㼕㻙㼐㼛㼜㼑㼐㻌㻹㼓㻮㻞ⷧ⭷䜒㼏㍈㓄ྥ䛜ㄆ䜑䜙䜜䛯䛜䠈㻹㼓㻮㻞┦䛾㻔㻜㻜㻞㻕䝢䞊䜽䛜㻺㼕䝗䞊䝥㔞䛾ቑຍ䛸䛸䜒䛻పゅഃ䛻䝅䝣䝖䛩䜛ᵝᏊ䛜ぢ䜙䜜䛯䚹䜎䛯䠈㼀㼍㼎㼘㼑㻌 㻝䛻ᚓ䜙䜜䛯㻹㼓㻮㻞ⷧ⭷䛾㼀㼏䜢♧䛩䚹㻺㼕㻙㼐㼛㼜㼑㼐㻔㼍㼟㻙㼓㼞㼛㼣㼚㻕ヨᩱ䛷䛿㻺㼕䝗䞊䝥㔞䛾ቑຍ䛸䛸䜒䛻 㼀㼏 䛿๻ⓗ䛻పୗ䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹 㼏 ㍈㛗䛸 㼀㼏 䛾⤖ᯝ䛿䠈ᑟධ䛧䛯㻺㼕䛜㻹㼓㻮㻞 ⤖ᬗ୰䛻ᅛ⁐䛧䛶䛔䜛ྍ⬟ᛶ䜢♧၀䛩䜛䚹㼍㼟㻙㼓㼞㼛㼣㼚ヨᩱ䛻䛚䛔䛶㻺㼕ᑟධ䛻䜘䜛㻞㻜㻌 㻷䞉㧗☢ሙ୰䛾㻶㼏ᨵၿ䛻䛿⮳䜙䛺䛛䛳䛯䚹㻌䛣䜜䜙䛾㻺㼕䜢ᑟධ䛧䛯㻹㼓㻮㻞ⷧ⭷䛻䛴䛔䛶㉸㧗┿✵୰䜰䝙䞊䝹䜢ヨ䜏䛯䚹䜎䛪䠈㻺㼕㻙㼒㼞㼑㼑㻌 㻹㼓㻮㻞ⷧ⭷㻔㻹㼓㻮㻞㻚㻝㻕䛷䛿䠈㢧ⴭ䛺

20 K , HAfilm surface

106

㻌

㻌

㻌

107

Jc㻌 A/cm2)

ศᯒ䛛䜙Ỵᐃ䛧䛯䚹䛺䛚䠈㼀㼍㼎㼘㼑㻌 㻝 䛻♧䛩䜘䛖䛻 㻹㼓㻮㻞㻺㼕㼤 ⷧ⭷䛾 㻺㼕 ⤌ᡂ䛿䠈䛔䛪䜜䜒 㻹㼓㻌㻦㻌㻮㻌㻦㻌㻺㼕㻌㻩㻌㻝㻌㻦㻌㻝㻚㻣䡚㻞㻚㻟㻌㻦㻌㻜㻚㻜㻝䡚㻜㻚㻜㻤䛷䛒䜚䠈࿘Ἴᩘ䛾ቑຍ䛸䛸䜒䛻ቑຍ䛩䜛䛣䛸䛜䜟䛛䛳䛯䚹ⷧ⭷䛾 㼀㼏䠈㻶㼏 䛻䛴䛔䛶䛿ᅄ➃Ꮚἲ䛛䜙Ỵᐃ䛧䛯䚹㻌㻌㻟䠊 ⤖ᯝ䛚䜘䜃⪃ᐹ㻌

105

solid : as-grown
open : 50h_annealed
MgB1.7Ni0.01(Ni-doped,f = 0.1)
MgB2.1Ni0.01(Ni-layer)

104

0

2

4

6

P0H㻌 (T)㻲㼕㼓㻚㻌 㻝㻌 䃛㻜㻴㻌 㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌 㼛㼒㻌 㻶㼏㻌 㼒㼛㼞㻌 㻺㼕㻙㼐㼛㼜㼑㼐㻌 㼍㼚㼐㻌 㻺㼕㻙㼘㼍㼥㼑㼞㻌㻌㻹㼓㻮㻞㻌㼠㼔㼕㼚㻌㼒㼕㼘㼙㼟㻌㼓㼞㼛㼣㼚㻌㼛㼚㻌㻿㼕㻌㼍㼠㻌㻞㻤㻜䉝㻌㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 ྜྷཎ䜙䠈ప ᕤᏛ䠈㻠㻣䠈㻝㻜㻟䠈㻔㻞㻜㻝㻞㻕㻌̿̿

第92回

2015年度秋季低温工学・超電導学会

㻌2C-p01

フライホイール㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨ᐇドᶵ䛾㛤Ⓨ≧ἣ㻌㻰㼑㼙㼛㼚㼟㼠㼞㼍㼠㼕㼛㼚㻌㻹㼍㼏㼔㼕㼚㼑㻌㼛㼒㻌㻲㼘㼥㼣㼔㼑㼑㼘㻌㻱㼚㼑㼞㼓㼥㻌㻿㼠㼛㼞㼍㼓㼑㻌㻿㼥㼟㼠㼑㼙㻌㼡㼟㼕㼚㼓㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻮㼑㼍㼞㼕㼚㼓㻌㻌ᑠ᪉㻌 ṇᩥ䠈ᒣୗ㻌 ▱ஂ䚸㛗ᔱ㻌 ㈼䠄㕲㐨⥲◊䠅䠗๓⏣㻌 ᛅ࿴䠄䜽䝪䝔䝑䜽䠅䠗㻌ᯇᒸ㻌 ኴ㑻䠄ྂἙ㟁ᕤ䠅䠗ΎỈ㻌 ⚽ᶞ䠄䝭䝷䝥䝻䠅䠗ᇼෆ㻌 ఙ୍䠄ᒣ᲍┴䠅㻌㻻㻳㻭㼀㻭㻌㻹㼍㼟㼍㼒㼡㼙㼕㻘㻌㼅㻭㻹㻭㻿㻴㻵㼀㻭㻌㼀㼛㼙㼛㼔㼕㼟㼍㻘㻌㻺㻭㻳㻭㻿㻴㻵㻹㻭㻌㻷㼑㼚㻌㻔㻾㼀㻾㻵㻕㻧㻌㻹㻭㻱㻰㻭㻌㼀㼍㼐㼍㼗㼍㼦㼡㻌㻔㻷㼁㻮㻻㼀㻱㻷㻕㻧㻌㻌 㻹㻭㼀㻿㼁㻻㻷㻭㻌㼀㼍㼞㼛㻌㻔㻲㼁㻾㼁㻷㻭㼃㻭㻌㻱㻸㻱㻯㼀㻾㻵㻯㻕㻧㻌㻿㻴㻵㻹㻵㼆㼁㻌㻴㼕㼐㼑㼗㼕㻌㻔㻹㻵㻾㻭㻼㻾㻻㻕㻧㻌㻴㻻㻾㻵㼁㻯㻴㻵㻌㻿㼔㼕㼚㻙㼕㼏㼔㼕㻌㻔㼅㻭㻹㻭㻺㻭㻿㻴㻵㻌㻼㼞㼑㼒㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼛㼓㼍㼠㼍㻚㼙㼍㼟㼍㼒㼡㼙㼕㻚㻡㻠㻬㼞㼠㼞㼕㻚㼛㼞㻚㼖㼜㻌㻝䠊䛿䛨䜑䛻㻌
㼀㼍㼎㼘㼑㻌㻝㻌㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㻲㻱㻿㻿㻌㼐㼑㼙㼛㼚㼟㼠㼞㼍㼠㼕㼛㼚㻌㼙㼍㼏㼔㼕㼚㼑㻌䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨䛿䚸⿦⨨䛻ෆⶶ䛧䛯኱ᚄ䛾෇┙
Output power
300 kW䠄䝣䝷䜲䝩䜲䞊䝹䠅䜢ᅇ㌿䛥䛫䜛䛣䛸䛷㟁Ẽ䜶䝛䝹䜼䞊䜢㐠ື䜶
Storage capacity
100 kWh䝛䝹䜼䞊䛻ኚ᥮䛧䛶⵳䛘䛶䛚䛝䚸ᚲせ䛻ᛂ䛨䛶䛭䛾㐠ື䜶䝛Maximumrotating
speed
6000
min-1
䝹䜼䞊䜢෌䜃㟁Ẽ䜶䝛䝹䜼䞊䛻ኚ᥮䛩䜛඘ᨺ㟁ྍ⬟䛺⵳㟁
Flywheel material / mass CFRP / 4000 kg / 2 m in diameter and 0.9 m
⿦⨨䛷䛒䜛䚹௒ᅇ㛤Ⓨ䛧䛯䝅䝇䝔䝮䛿໬Ꮫ཯ᛂ䜢క䜟䛪䚸ᙉ/ dimensions
in heightຊ䛺☢ሙ䜢Ⓨ⏕ྍ⬟䛺㉸㟁ᑟ☢Ẽ㍈ཷ䛾཯Ⓨຊ䛻䜘䜛㠀᥋
Thrust bearing
Magnetic bearing composed of RE highゐᨭᣢ䜢฼⏝䛩䜛䛯䜑䚸ᮏ㉁ⓗ䛻ຎ໬䛾䛺䛔䛂⵳㟁ụ䛃䛸䜒ゝ
temperature superconducting coils and bulks
䛘䜛䚹NEDO ຓᡂ஦ᴗ䛻䜘䜚⣔⤫Ᏻᐃ໬⏝⵳㟁⿦⨨䛸䛧䛶㉸
Radial bearing
Active magnetic bearing for assistance㟁ᑟ☢Ẽ㍈ཷ䜢⏝䛔䛯䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨䛾㛤Ⓨ䜢㐍䜑㻌㻟䠊௒ᚋ䛾ィ⏬㻌䛶䛚䜚[1]䚸䛣䛾䛯䜃ᐇドᶵ䛜᏶ᡂ䛧䛯䛾䛷ᴫせ䜢ሗ࿌䛩䜛䚹㻌ᮏᐇドᶵ䛿ᒣ᲍┴⏥ᗓᕷ䛾⡿಴ᒣᐇドヨ㦂⏝ኴ㝧ගⓎ㻞䠊ᐇドᶵ䛾ᴫせ㻌㟁ᡤ䠄ฟຊ 㻝㻌 㻹㼃䠅䛻タ⨨ᚋ䚸㉸㟁ᑟ☢Ẽ㍈ཷ䛾෭༷ヨ㦂䚸᏶ᡂ䛧䛯ᐇドᶵ䛾ᵓᡂ䛸୺せᛶ⬟䜢ᅗ 㻝 䛚䜘䜃⾲ 㻝 䛻♧䛩䚹ᾋୖᏳᐃᛶヨ㦂➼䜢᏶஢䛧䚸⣔⤫㐃⣔ヨ㦂䜢㛤ጞ䛧䛯䚹௒ᚋ෇ᙧ⼺᪕⧊≀ᢏ⾡䜢ᛂ⏝䛧䛯┤ᚄ 㻞㻌㼙䚸㉁㔞 㻠㻜㻜㻜㻌㼗㼓 䛾ୡ⏺
䛿䚸ᅇ㌿㏿ᗘྥୖヨ㦂䚸㐃⥆㐠㌿ヨ㦂䚸ಙ㢗ᛶ䞉⪏ஂᛶヨ㦂᭱኱⣭䛾 㻯㻲㻾㻼 〇኱ᚄ䝣䝷䜲䝩䜲䞊䝹䜢ᐃ᱁ᅇ㌿ᩘ 㻟㻜㻜㻜䡚➼䚸⣔⤫Ᏻᐃ໬䛻ྥ䛡䛯ᐇドヨ㦂䜢 㻞㻜㻝㻡 ᖺᗘᮎ䛻䛛䛡䛶ᐇ㻢㻜㻜㻜㻌㼙㼕㼚㻙㻝 䛷㐠㌿䛧䚸⵳㟁ᐜ㔞䛿 㻝㻜㻜㻌㼗㼃㼔 䛷䛒䜛䚹䛣䛾⦪ᅇ㌿᪋䛧䛶䛔䛟ィ⏬䛷䛒䜛䚹㻌䛩䜛䝣䝷䜲䝩䜲䞊䝹䛾㍈ୗ➃䛻㉸㟁ᑟ☢Ẽ㍈ཷ䜢㓄⨨䛧䚸㠀ᮏ㛤Ⓨ䛿䚸NEDO ຓᡂ஦ᴗ䛂ḟୡ௦䝣䝷䜲䝩䜲䞊䝹⵳㟁䝅䝇᥋ゐ䛷ୖୗ᪉ྥ䛾Ⲵ㔜䜢ᨭᣢ䛩䜛䚹䛣䛾㉸㟁ᑟ☢Ẽ㍈ཷ䛿䝔䝮䛾㛤Ⓨ䛃䛻䜘䜚㕲㐨⥲◊䚸䜽䝪䝔䝑䜽䚸ྂἙ㟁ᕤ䚸䝭䝷䝥䝻䚸㻾㻱 ⣔䛾㧗 ㉸㟁ᑟᮦᩱ䛛䜙䛺䜛䝁䜲䝹䠄ᅛᐃഃ䠅䛚䜘䜃䝞䝹ᒣ᲍┴䛜ඹྠᐇ᪋䛧䛶䛔䜛䜒䛾䛷䛒䜛䚹䜽䠄ᅇ㌿ഃ䠅䛷ᵓᡂ䛥䜜䚸Ⲵ㔜ᨭᣢ䛿㞽☢ሙ෭༷ᚋ䛾䝁䜲䝹㏻ཧ⪃ᩥ⊩㻌㟁䛻䜘䜚䝞䝹䜽䛻Ⓨ⏕䛩䜛཯Ⓨຊ䜢฼⏝䛧䛶䛔䜛䚹㉸㟁ᑟ☢
㻝㻚㻌㻴㻚㻌㻴㼍㼟㼑㼓㼍㼣㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㻚㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻥㻝㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻝Ẽ㍈ཷ䛾᥇⏝䛻䜘䜚䚸㻠㻜㻜㻜㻌㼗㼓 ᨭᣢ᫬䛷䜒 㻞㻜㻌㼙㼙 䛾䝯䜹䝙䜹䝹䜽䝸䜰䝷䞁䝇䜢ᐇ⌧䛧䛯䚹㻌㻌㻲㼕㼓㻚㻝㻌㻿㼥㼟㼠㼑㼙㻌㼏㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㻲㻱㻿㻿㻌㼐㼑㼙㼛㼚㼟㼠㼞㼍㼠㼕㼛㼚㻌㼙㼍㼏㼔㼕㼚㼑㻌㻌̿̿

第92回

2015年度秋季低温工学・超電導学会

2C-p02

フライホイール㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨⏝㉸㟁ᑟ☢Ẽ㍈ཷ䛾㛤Ⓨ䐟㻌䡚㻿㻹㻮 䛾ヨ㦂⤖ᯝ䛸ᅇ㌿ヨ㦂㏿ሗ䡚㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻮㼑㼍㼞㼕㼚㼓㻌㼒㼛㼞㻌㻴㼀㻿㻌㻲㼘㼥㼣㼔㼑㼑㼘㻌㼑㼚㼑㼞㼓㼥㻌㼟㼠㼛㼞㼍㼓㼑㻌㼟㼥㼟㼠㼑㼙㻌 㻌䇵㻿㻹㻮㻌㼀㼑㼟㼠㻌㻾㼑㼟㼡㼘㼠㼟㻌㼍㼚㼐㻌㻼㼞㼛㼙㼜㼠㻌㻾㼑㼜㼛㼞㼠㻌㼛㼒㻌㻾㼛㼠㼍㼠㼕㼛㼚㻌㼀㼑㼟㼠㻙㻌㻌୰ᑿ㻌 ೺࿃㻘㻌 ᯇᒸ㻌 ኴ㑻㻘㻌 ྂᕝ㻌 ┿䠄ྂἙ㟁ᕤ䠅䠗ᒣୗ㻌 ▱ஂ㻘㻌 ᑠ᪉㻌 ṇᩥ㻘㻌 ᐑᓮ㻌 ెᶞ䠄㕲㐨⥲◊䠅䠗㻌ΎỈ㻌 ⚽ᶞ㻘㻌 ⃝ᮧ㻌 ⚽ḟ㻘㻌 ᑠ⃝㻌 Ꮥோ䠄䝭䝷䝥䝻䠅㻌㻺㻭㻷㻭㻻㻌㻷㼑㼚㼓㼛㻘㻌㻹㻭㼀㻿㼁㻻㻷㻭㻌㼀㼍㼞㼛㻘㻌㻲㼁㻾㼁㻷㻭㼃㻭㻌㻹㼍㼗㼛㼠㼛䠄㻲㼡㼞㼡㼗㼍㼣㼍㻌㻱㼘㼑㼏㼠㼞㼕㼏䠅䠗㼅㻭㻹㻭㻿㻴㻵㼀㻭㻌㼀㼛㼙㼛㼔㼕㼟㼍㻘㻌㻻㻳㻭㼀㻭㻌㻹㼍㼟㼍㼒㼡㼙㼕㻘㻌㻹㻵㼅㻭㼆㻭㻷㻵㻌㼅㼛㼟㼔㼕㼗㼕䠄㻾㼀㻾㻵䠅䠗㻿㻴㻵㻹㻵㼆㼁㻌㻴㼕㼐㼑㼗㼕㻘㻌㻿㻭㼃㻭㻹㼁㻾㻭㻌㻴㼕㼐㼑㼠㼟㼡㼓㼡㻘㻌㻻㼆㻭㼃㻭㻌㼀㼍㼗㼍㼔㼕㼠㼛䠄㻹㼕㼞㼍㼜㼞㼛䠅㻌㻱㻙㼙㼍㼕㼘㻦㻌㼙㼞㻞㻡㻝㻣㻞㻢㻬㼙㼞㻚㼒㼡㼞㼡㼗㼍㼣㼍㻚㼏㼛㻚㼖㼜㻌㻌㻝䠊䛿䛨䜑䛻㻌
㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨䠄㻲㻱㻿㻿䠅䛿㉸㟁ᑟ☢Ẽ㍈ཷ䠄㻿㻹㻮䠅䛻䜘䛳䛶䝣䝷䜲䝩䜲䞊䝹䜢ᾋୖ䚸ᅇ㌿䛥䛫䜛䛯䜑䚸㍈ཷ㒊䛷䛾䜶䝛䝹䜼䞊ᦆኻ䛜↓䛟䚸䜎䛯䚸ᦶ⪖䛩䜛䛣䛸䜒↓䛔䛯䜑䝯䞁䝔䝘䞁䝇ᛶ䛻䜒ඃ䜜䛶䛔䜛䚹㼇㻝㼉㻌 㻿㻹㻮 䛾ᾋୖཎ⌮䛿䚸㉸㟁ᑟ䝁䜲䝹䛻㏻㟁䛧䚸Ⓨ⏕䛧䛯☢⏺䛸㉸㟁ᑟ䝞䝹䜽䛾᏶඲཯☢
ᛶ⌧㇟䛻䜘䜚ᚓ䜙䜜䜛኱䛝䛺཯Ⓨຊ䜢฼⏝䛩䜛䜒䛾䛷䛒䜛䚹㻌㻲㻱㻿㻿 䛿ᐇドヨ㦂䜢⾜䛖䛯䜑ᒣ᲍┴⡿಴ᒣ䜈タ⨨䛜᏶஢䛧䚸ᅇ㌿ヨ㦂䛸䛭䜜䛻ྜ䜟䛫䛶ಙ㢗ᛶ䛾᳨ド䜢㐍䜑䛶䛔䜛䚹㻿㻹㻮䛿኱㉁㔞䜢ᾋୖ䛥䛫䜛䛯䜑䚸㉸㟁ᑟ䝁䜲䝹䛸㉸㟁ᑟ䝞䝹䜽䛾෭༷≧ែ䛾᳨ド䛜㔜せ䛷䛒䜛䚹䛥䜙䛻䚸ᅇ㌿᫬䛻䛿 㟁ὶ䛻䜘䜛Ⓨ⇕䛸㢼ᦆ䚸⇕౵ධ≉ᛶ䛜㔜せ䛺᳨ド㡯┠䛷䛒䜛䚹㻌௒ᅇ䛾Ⓨ⾲䛷䛿ᅇ㌿ヨ㦂᫬䛾෭༷䞉ᾋୖ≧ἣ䛻䛴䛔䛶ᚓ䜙䜜䛯▱ぢ䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌㻌㻞䠊㛗᫬㛫Ᏻᐃᾋୖ䛾᳨ド≧ἣ㻌⡿಴ᒣ䜈䛾⛣タᚋ䚸㻣㻜㻜 ᫬㛫௨ୖ䛾㏻㟁ᾋୖ䜢⾜䛔䚸ᕤሙヨ㦂䛸ྜ䜟䛫䛶ᘏ䜉 㻝㻞㻜㻜 ᫬㛫௨ୖ䛾ᾋୖ䜢⾜䛖䛣䛸䛷ಙ㢗ᛶ䛾᳨ド䜢⾜䛳䛶䛔䜛䚹㻌ᅗ 㻝 䛻ᾋୖ㧗䛥䛸㏻㟁㟁ὶ䛾᫬㛫౫Ꮡᛶ䜢♧䛩䚹䜾䝷䝣䜘䜚㻟㻜㻜 ᫬㛫௨ୖ䛻䜟䛯䜛Ᏻᐃᾋୖ䛜☜ㄆ䛷䛝䛯䛸⪃䛘䛶䛔䜛䚹㏵୰䚸ᾋୖ㧗䛥䛜ኚ໬䛧䛶䛔䜛䛜䚸ບ☢㟁※⏤᮶䛾㟁ὶኚ໬䛻䜘䜛䜒䛾䛷䚸ไᚚ⠊ᅖ䛻཰䜎䛳䛶䛔䜛䛣䛸䛛䜙ᾋୖ䛾Ᏻᐃᛶ䛻ၥ㢟䛿䛺䛔䛸⪃䛘䛶䛔䜛䚹㻌㻌㻟䠊㧗㏿ᅇ㌿᫬䛾ᾋୖ㧗䛥ไᚚ≉ᛶ㻌ᅗ 㻞 䛻㧗㏿ᅇ㌿᫬䛾ᾋୖ㧗䛥䛾ไᚚ౛䛸䛧䛶 㻝㻠㻝㻜㼞㼜㼙 䛷㻝㻞㻜 ศ㛫ᅇ㌿䛥䛫䛯䝕䞊䝍䜢♧䛩䚹ᅇ㌿୰䜒኱䛝䛺ᾋୖ㧗䛥䛾ኚ໬䛿↓䛟䚸ᅇ㌿ᚋ䜒ᅇ㌿๓䛸ྠ䛨ᾋୖ㧗䛥䛷Ᏻᐃไᚚ䛷䛝䛶䛚䜚䚸䛣䜜䛿䝞䝹䜽䛜 ᗘኚ໬䛺䛟෭༷䛥䜜䛶䛔䜛䛣䛸䜒ព࿡䛧䛶䛔䜛䛸⪃䛘䜛䚹ᅇ㌿䛩䜛䛣䛸䛻䜘䜛㢼ᦆ䜔䚸᣺ື䛻䜘䜛⇕౵ධ䛜ၥ㢟䛺䛔䝺䝧䝹䛷䛒䜚䚸㉸㟁ᑟ㒊ศ䛾䜏㒊ศ෭༷䛩䜛ᮏ䠯䠩䠞ᵓᡂ䛷Ᏻᐃᾋୖ䛾┠ฎ䛜❧䛳䛯䛸⪃䛘䛶䛔䜛䚹㻌㻌㻠䠊㧗㏿ᅇ㌿᫬䛾䝁䜲䝹 ᗘୖ᪼ᗘྜ䛔ண 㻌䝻䞊䝍䞊䛜㧗㏿䛷ᅇ㌿䛧䛯ሙྜ䚸 㟁ὶ䛻䜘䜛Ⓨ⇕䛜ண᝿䛥䜜䜛䚹㼇㻞㼉㻌㼀㼍㼎㼘㼑㻌㻝 䛻 㻝㻠㻝㻜㼞㼜㼙 䛸 㻝㻣㻡㻜㼞㼜㼙 䛷㛗᫬㛫ᅇ㌿ヨ㦂䛧䛯᫬䛾䝁䜲䝹 ᗘ䛾ኚ໬䜢䜎䛸䜑䛯䜒䛾䜢♧䛩䚹㻌㻝㻠㻝㻜㼞㼜㼙 䛷 㻝㻞㻜 ศ㛫ᅇ㌿䛥䛫䛯ሙྜ䚸㻜㻚㻞㻷 䛾 ᗘୖ᪼䛜ぢ䜙䜜䛯䚹 㟁ὶ䛻䜘䜛Ⓨ⇕䛿ᅇ㌿ᩘ䛾 㻞 ஌䛷ẚ౛䛩䜛䛣䛸䛛䜙䚸ᮏ⿦⨨䛾᭱㧗ᅇ㌿ᩘ 㻢㻜㻜㻜㼞㼜㼙 䛷䛿 㻝㻠㻝㻜㼞㼜㼙 䛾⣙ 㻝㻤 ಸ䛾Ⓨ⇕䛜ண᝿䛥䜜䜛䚹 ᗘኚ໬䛜ᑠ䛥䛔䛾䛷෭෾ᶵ⬟ຊ䛿ᗘኚ໬䛸ẚ౛䛧ྛ㒊䛾≀ᛶ್䛜ኚ໬䛧䛺䛔䛸௬ᐃ䛩䜜䜀䚸䝁䜲䝹䛾 ᗘୖ᪼䛿⣙ 㻟㻚㻢㻷 䛸ヨ⟬䛥䜜䚸䛭䛾᫬䛾䝁䜲䝹 ᗘ䛿⣙ 㻞㻞㻷 䛸᥎ᐃ䛥䜜䜛䛜䚸㐠⏝ ᗘୖ㝈䛾 㻟㻜㻷 ௨ୗ䜢‶䛯䛩䛾䛷䚸᭱㧗ᅇ㌿ᩘ 㻢㻜㻜㻜㼞㼜㼙 䛷䜒Ᏻᐃᾋୖྍ⬟䛸⪃䛘䛶䛔䜛䚹㻌㻌㻡䠊䜎䛸䜑㻌
㻲㻱㻿㻿 䜢ᐇドヨ㦂᪋タ䛾䛒䜛⡿಴ᒣ䜈䛾⛣タ䛜᏶஢䛧䚸㛗᫬㛫䛾ᾋୖヨ㦂䛸㧗㏿ᅇ㌿ヨ㦂䜢㐍䜑䛶䛔䜛䚹䛣䜜䜎䛷ྜィ㻝㻞㻜㻜 ᫬㛫䜢㉺䛘䜛ᾋୖ䜢⾜䛔䚸ಙ㢗ᛶ᳨ド䛻ྲྀ⤌䜣䛷䛔䜛䚹㻌䛣䜜䜎䛷䛾ᅇ㌿ᩘྥୖヨ㦂⤖ᯝ䛛䜙Ᏻᐃᾋୖ䛜ྍ⬟䛺䛣䛸䜔䝞䝹䜽 ᗘ䜔䝁䜲䝹 ᗘ䛻㢧ⴭ䛺ኚ໬䛜↓䛟䚸෭༷䛻ၥ㢟䛺䛔䛣䛸䛜☜ㄆ䛷䛝䛶䛔䜛䚹≉䛻䚸㻝㻠㻝㻜㼞㼜㼙 䛷䛾ᅇ㌿ヨ㦂᫬䛾ᗘୖ᪼≉ᛶ䛛䜙䚸ᮏ⿦⨨䛾᭱㧗ᅇ㌿ᩘ 㻢㻜㻜㻜㼞㼜㼙 䛾 ᗘୖ᪼䜒㐠⏝ୖ䛾チᐜ⠊ᅖෆ䛻䛺䜛䝯䝗❧䛶䛷䛝䛯䛸⪃䛘䛶䛔䜛䚹㻌㻌㻢䠊ㅰ㎡㻌ᮏ◊✲䛿䚸ᅜ❧◊✲㛤Ⓨἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ䠄㻺㻱㻰㻻䠅䛾ຓᡂ஦ᴗ䛸䛧䛶ᐇ᪋䛧䛶䛔䜛䚹㻌ᮏ㉸㟁ᑟ䝁䜲䝹䛾タィ䛿୰㒊㟁ຊ䠄ᰴ䠅䛾䛂㼅㻻㻾㻻㻵 䝁䜲䝹䛃ᵓ㐀䜢᥇⏝䛧䛶䛔䜛䚹㻌㻲㼕㼓㻚㻌㻝㻌㼀㼕㼙㼑㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼏㼡㼞㼞㼑㼚㼠㻌㼍㼚㼐㻌㼘㼑㼢㼕㼠㼍㼠㼕㼛㼚㻌㼘㼑㼢㼑㼘㻌㻲㼕㼓㻚㻌㻞㻌㻸㼑㼢㼕㼠㼍㼠㼕㼛㼚㻌㼘㼑㼢㼑㼘㻌㼐㼡㼞㼕㼚㼓㻌㼞㼛㼠㼍㼠㼕㼛㼚㻌㼠㼑㼟㼠㻌㼀㼍㼎㼘㼑㻌㻝㻌 㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼏㼔㼍㼚㼓㼑㻌㼎㼥㻌㼞㼛㼠㼍㼠㼕㼛㼚㻌㻌㻝㻠㻝㻜㻌㼞㼜㼙㻌㻝㻣㻡㻜㻌㼞㼜㼙㻌䠄㻝㻞㻜㻌㼙㼕㼚䠅㻌䠄㻢㻜㻌㼙㼕㼚䠅㻌㻮㼑㼒㼛㼞㼑㻌㼞㼛㼠㼍㼠㼕㼛㼚㻌㻝㻤㻚㻡㻌㻷㻌
㻝㻤㻚㻡㻌㻷㻌
㻾㼛㼠㼍㼠㼕㼚㼓㻌㻝㻤㻚㻣㻌㻷㻌
㻝㻤㻚㻣㻌㻷㻌
㻰㼕㼒㼒㼑㼞㼑㼚㼏㼑㻌㻗㻌㻜㻚㻞㻌㻷㻌
㻗㻌㻜㻚㻞㻌㻷㻌ཧ⪃ᩥ⊩㻌㻝㻚㻌 㻴㻚㻴㼍㼟㼑㼓㼍㼣㼍㻘㻌㼑㼠㻌㼍㼘㻚㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㼏㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼢㼛㼘㻚㻌㻥㻝㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻝㻌㻞㻚㻌 㼅㻚㻌㻹㼕㼥㼍㼦㼍㼗㼕㻘㻌㼑㼠㻌㼍㼘㻚㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㼏㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼢㼛㼘㻚㻌㻥㻝㻌㻔㻞㻜㻝㻡㻕㻌㼜㻝㻡㻌̿̿

第92回

2015年度秋季低温工学・超電導学会

2C-p03

フライホイール㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨⏝㉸㟁ᑟ☢Ẽ㍈ཷ䛾㛤Ⓨ䐠㻌㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䛯 㻿㻹㻮 タィཬ䜃㧗 㻵㼏 ⥺ᮦ䝁䜲䝹䛾ᛶ⬟㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻮㼑㼍㼞㼕㼚㼓㻌㼒㼛㼞㻌㻴㼀㻿㻌㻲㼘㼥㼣㼔㼑㼑㼘㻌㼑㼚㼑㼞㼓㼥㻌㼟㼠㼛㼞㼍㼓㼑㻌㼟㼥㼟㼠㼑㼙㻌 㻌㻙㼀㼔㼑㻌㼐㼑㼟㼕㼓㼚㻌㼛㼒㻌㻿㻹㻮㻌㼣㼕㼠㼔㻌㼔㼕㼓㼔㻌㼏㼞㼕㼠㼕㼏㼍㼘㻌㼏㼡㼞㼞㼑㼚㼠㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌㼍㼚㼐㻌㼠㼔㼑㻌㼜㼑㼞㼒㼛㼞㼙㼍㼚㼏㼑㻌㼛㼒㻌㼠㼔㼑㻌㻴㼀㻿㻌㼏㼛㼕㼘㻌䇵㻌㻌ྂᕝ┿ᯇᒸኴ㑻୰ᑿ೺࿃㸦ྂἙ㟁ᕤ㸧ᒣୗ▱ஂᑠ᪉ṇᩥỈ㔝ඞಇ㸦㕲㐨⥲◊㸧
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㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨⏝㉸㟁ᑟ☢Ẽ㍈ཷ㻔㻿㻹㻮㻕䛷䛿䚸䝎䝤䝹䝟䞁䜿䞊䜻ᆺ㉸㟁ᑟ䝁䜲䝹䠄㻰㻼㻯䠅䛻䜘䛳䛶Ⓨ⏕䛥䛫䜛☢ሙ䛻䜘䜚䚸㉸㟁ᑟ䝞䝹䜽䜢ྵ䜐 㻠㻘㻜㻜㻜㻌㼗㼓 䛾䝻䞊䝍䜢ᾋୖ䛥䛫䜛䚹㻰㻼㻯 䛿⵳㟁⿦⨨඲య䛻༨䜑䜛䝁䝇䝖๭ྜ䛜኱䛝䛔䛯䜑䚸㉸㟁ᑟ⥺ᮦ䛾౑⏝䜢䛷䛝䜛䛰䛡๐ῶ䛩䜛䛣䛸䜢┠ⓗ䛸䛧䛶᪂䛯䛻 㻿㻹㻮 䜢タィ䚸〇స䚸ホ౯䛧䛯䚹㻿㼡㼜㼑㼞㻌 㻼㼛㼣㼑㼞 ♫〇䛾㧗䠥䠿⥺ᮦ䜢౑⏝䛩䜛䛣䛸䛻䜘䜚䚸㉸㟁ᑟ⥺ᮦ䛾౑⏝㔞䜢ᚑ᮶ရ䛸ẚ㍑䛧䛶኱ᖜ䛻๐ῶ䛩䜛䛣䛸䛻ᡂຌ䛧䛯䚹௒ᅇ䚸㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䛯 㻿㻹㻮 タィ䛸䚸ᐇ㦂䛻䜘䜛タィጇᙜᛶ䛾ホ౯䛻䛴䛔䛶ሗ࿌䛩䜛䚹㻌
㻌㻞䠊㧗 㻵㼏 ⥺ᮦ䛾ᛶ⬟㻌ᅗ 㻝 䛻 㻿㼡㼜㼑㼞㻌㻼㼛㼣㼑㼞 ♫〇㉸㟁ᑟ⥺ᮦ䛾☢ሙ୰ 㻵㼏 ≉ᛶ䜢♧䛩䠄⥺ᮦᖜ㻦㻢㼙㼙䠅䚹Ⅼ⥺䛿ᚑ᮶⥺ᮦ䚸ᐇ⥺䛿㧗 㻵㼏 ⥺ᮦ䛾 ᐃ⤖ᯝ䛷䛒䜛䚹㻟㻜㻷㻘㻡㻜㻷 ඹ䛻ᚑ᮶ရ䛸ẚ䜉䛶䚸☢ሙ୰ 㻵㼏 䛜⣙㻝㻚㻡 ಸ䛻ྥୖ䛧䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹ᅗ୰䛾┤⥺䛿 㻰㻼㻯 ᯛᩘ䛜 㻡 ᯛ䠄㻡㻰㻼㻯䠅䛸 㻟 ᯛ㻔㻟㻰㻼㻯㻕䛾ሙྜ䛻䛚䛡䜛᭱኱⤒㦂☢ሙ䛸
㏻ 㟁 㟁 ὶ 㻵㼛㼜 䛾 㛵 ಀ 䜢 ⾲ 䛧 䛯 䜒 䛾 䛷 䛒 䜛 䚹 䛯 䛸 䛘 䜀 䚸㻟㻰㻼㻯㻬㻟㻜㻷 䛾ሙྜ䚸ᚑ᮶⥺䛷䛾䝁䜲䝹 㻵㼏 䛜 㻝㻣㻜㻭䚸㧗 㻵㼏 ⥺䛷䛾䝁䜲䝹 㻵㼏 䛜 㻞㻟㻡㻭 䛷䛒䜚䚸㻿㻹㻮 䛻⤌㎸䜣䛰ሙྜ䛷䜒⣙ 㻝㻚㻠ಸྥୖ䛧䛶䛔䜛䛣䛸䛜ศ䛛䜛䚹㻿㻹㻮 䛾ᾋୖຊ䛿 㻵㼛㼜 䛾 㻞 ஌䛻ẚ౛䛩䜛䛯䜑䚸㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䜛䛣䛸䛷⵳㟁⿦⨨䛾኱ᐜ㔞໬䛜ྍ⬟䛸䛺䜛䚹䜎䛯䚸ྠ䛨䛾ᾋୖຊ䛻ᑐ䛧䛶䛿㈇Ⲵ⋡㻔㻵㼛㼜㻛㻵㼏㻕䛜పῶ䛷䛝䜛䛯䜑䚸⿱ᗘ䜢ᣢ䛳䛯ᶵჾ㐠⏝䜔䚸㻰㻼㻯 䛾ᯛᩘ๐ῶ䛻䜘䜛 㻿㻹㻮 䛾䝁䝇䝖๐ῶ䜒ྍ⬟䛻䛺䜛䛸⪃䛘䛶䛔䜛䚹㻌㻌㻟䠊㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䛯 㻿㻹㻮 タィ㻌 㻌ᅗ 㻞 䛾ᐇ⥺䛿 㻡㻰㻼㻯 䛸 㻟㻰㻼㻯 䛻䛚䛡䜛 㻵㼛㼜 䛸ᾋୖຊ䛾ゎᯒ⤖ᯝ䜢⾲䛧䛶䛔䜛䚹㻠㻘㻜㻜㻜㻌 㼗㼓 ᾋୖ䛻ᚲせ䛺㏻㟁㟁ὶ䛿 㻰㻼㻯䛜 㻡 ᯛ䛾ሙྜ䠄㻡㻰㻼㻯䠅䛿 㻣㻠㻭䚸㻟㻰㻼㻯 䛾ሙྜ䛿 㻝 ᯛᙜ䛯䜚䛾ᚲせ☢ሙ䛜ቑຍ䛩䜛䛯䜑 㻝㻜㻝㻭 䛸䛺䛳䛯䚹㻰㻼㻯 䛾 㻵㼏 䛿ኚ໬䛧䛺䛔䛯䜑䚸㻟㻰㻼㻯 䛾᪉䛜኱䛝䛺㈇Ⲵ⋡䛸䛺䜛䚹⾲ 㻝 䛻⥺ᮦ䛾✀㢮䛸 㻰㻼㻯 ᯛᩘ䛤䛸䛾 㻡㻜㻷 䛻䛚䛡䜛㈇Ⲵ⋡䜢♧䛩䚹㻿㻹㻮 䛿㈇Ⲵ⋡ 㻜㻚㻤 ௨ୗ䛷タィ䛥䜜䛶䛔䜛䛜䚸ᚑ᮶⥺ᮦ䜢⏝䛔䛯 㻟㻰㻼㻯䛾ሙྜ䛿㈇Ⲵ⋡䛜 㻜㻚㻥㻟 䛸䛺䛳䛶䛧䜎䛖䚹䛭䛾䛯䜑䚸ᐇドヨ㦂ᶵ䛷䛿 㻰㻼㻯 䜢 㻡 ᯛ⏝䛔䜛ᚲせ䛜䛒䛳䛯䠄㈇Ⲵ⋡䠖㻜㻚㻣㻢䠅䚹୍᪉䛷㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䛯ሙྜ䚸㻟 ᯛ䛷䛒䛳䛶䜒㈇Ⲵ⋡䛿 㻜㻚㻣㻝 䛸䛺䜚䚸ᚑ᮶䛸ẚ䜉 㻰㻼㻯 ᯛᩘ䜢 㻟㻛㻡 䛻๐ῶ䛩䜛䛣䛸䛜ྍ⬟䛷䛒䜛䚹㻌㻌㻠䠊㻟㻰㻼㻯 䛷䛾 㻠㻘㻜㻜㻜㻌㼗㼓 ᾋୖᐇ㦂㻌タィ䛾ጇᙜᛶ䜢♧䛩䛯䜑䚸㧗 㻵㼏 ⥺ᮦ 㻰㻼㻯㻞 ᯛ䛸ᚑ᮶⥺ᮦ㻰㻼㻯㻝 ᯛ䛾ィ 㻟 ᯛ䜢⏝䛔䛶 㻠㻘㻜㻜㻜㻌㼗㼓 ᾋୖᐇ㦂䜢⾜䛳䛯䚹㧗 㻵㼏⥺ᮦ 㻰㻼㻯 䛿㉸㟁ᑟ䝞䝹䜽௜㏆䛷䛒䜚⤒㦂☢ሙ䛜኱䛝䛔 㻿㻹㻮ୖ㒊ഃ䛻㓄⨨䛧䛯䚹ᅗ 㻞 䛾Ⅼ䛜ᾋୖᐇ㦂⤖ᯝ䜢♧䛧䛯䜒䛾䛷䚸ゎᯒ⤖ᯝ䛸Ⰻ䛟୍⮴䛧䛶䛔䜛䛣䛸䛛䜙䚸㧗 㻵㼏 ⥺ᮦ 㻰㻼㻯 䛾ඃ఩ᛶ䛸 㻿㻹㻮 タィ䛾ጇᙜᛶ䛜ᐇド䛷䛝䛯䛸⪃䛘䛶䛔䜛䚹㻌㻌㻡䠊䜎䛸䜑䛸௒ᚋ䛾ணᐃ㻌㻌 㻿㼡㼜㼑㼞㻌㻼㼛㼣㼑㼞 ♫〇䛾㧗 㻵㼏 ⥺ᮦ䜢⏝䛔䛯 㻿㻹㻮 䛾タィ䛚䜘䜃䚸㧗 㻵㼏 ⥺ᮦ䝁䜲䝹䜢ྵ䜐 㻟㻰㻼㻯 䛻䜘䜛ᾋୖᐇ㦂䜢ᐇ᪋䛧䚸㧗 㻵㼏⥺ᮦ䝁䜲䝹䜢⏝䛔䛯 㻿㻹㻮 タィ䛾ጇᙜᛶ䛾ᐇド䛸 㻰㻼㻯 䛾䝁䝇䝖䜢 㻟㻛㻡 䛻๐ῶ䛩䜛ぢ㏻䛧䛜❧䛶䜙䜜䛯䚹㻌௒ᚋ䛿䚸ᒣ᲍┴⡿಴ᒣ䛾䝯䜺䝋䞊䝷Ⓨ㟁ᡤ䛷ᐇドヨ㦂䜢
㏻䛧䛶䚸஦ᴗ໬䛻ྥ䛡䛯 㻿㻹㻮 タィ䛾ලయ໬䛻ὀຊ䛧䛶䛔䛟䚹㻌㻌㻢䠊ㅰ㎡㻌ᮏ◊✲䛿䚸ᅜ❧◊✲㛤Ⓨἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡⥲ྜ㛤Ⓨᶵᵓ㻔㻺㻱㻰㻻㻕䛾ຓᡂ஦ᴗ䛸䛧䛶ᐇ᪋䛧䛶䛔䜛䚹㻌ᮏ㉸㟁ᑟ䝁䜲䝹䛾タィ䛿୰㒊㟁ຊ㻔ᰴ㻕䛾䛂㼅㻻㻾㻻㻵 䝁䜲䝹䛃ᵓ㐀䜢᥇⏝䛧䛶䛔䜛䚹㻌㻲㼕㼓㻚㻝㻌㻵㼏㻙㻮㻌㼏㼔㼍㼞㼍㼏㼠㼑㼞㼕㼟㼠㼕㼏㼟㻌㻔㼣㼕㼞㼑㻌㼣㼕㼐㼠㼔㻦㻌㻢㻌㼙㼙㻕㻌㻲㼕㼓㻚㻞㻌㻯㼡㼞㼞㼑㼚㼠㻌㼐㼑㼜㼑㼚㼐㼑㼚㼏㼑㻌㼛㼒㻌㼘㼕㼒㼠㼕㼚㼓㻌㼜㼛㼣㼑㼞㻌㻌㼀㼍㼎㼘㼑㻚㻝㻌㻸㼛㼍㼐㻌㼒㼍㼏㼠㼛㼞㻌㼒㼛㼞㻌㻰㻼㻯㻌㻸㼛㼍㼐㻌㼒㼍㼏㼠㼛㼞㻌㻬㻡㻜㻷㻌㻔㻵㼛㼜㻛㻵㼏㻕㻌㻺㼡㼙㼎㼑㼞㻌㼛㼒㻰㻼㻯㻌㻯㼛㼚㼢㼑㼚㼠㼕㼛㼚㼍㼘㻌㻴㼀㻿㻌㼣㼕㼞㼑㻌 㻴㼕㼓㼔㻌㻵㼏㻌㻴㼀㻿㻌㼣㼕㼞㼑㻡㻌㻟㻌㻜㻚㻣㻢㻌 㻌㻜㻚㻡㻤㻌㻜㻚㻥㻟㻌 㻌

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第92回

2015年度秋季低温工学・超電導学会

2C-p04

フライホイール㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨⏝㉸㟁ᑟ☢Ẽ㍈ཷ䛾㛤Ⓨ䐡㻌ྞ䜚ୖ䛢᪉ᘧ㧗㏿ᅇ㌿Ⲵ㔜ᨭᣢయ䛾ヨタィ㻌㻰㼑㼢㼑㼘㼛㼜㼙㼑㼚㼠㻌㼛㼒㻌㻿㼡㼜㼑㼞㼏㼛㼚㼐㼡㼏㼠㼕㼚㼓㻌㻹㼍㼓㼚㼑㼠㼕㼏㻌㻮㼑㼍㼞㼕㼚㼓㻌㼒㼛㼞㻌㼒㼘㼥㼣㼔㼑㼑㼘㻌㼑㼚㼑㼞㼓㼥㻌㼟㼠㼛㼞㼍㼓㼑㻌㼟㼥㼟㼠㼑㼙䐡㻌㻙㻌㼀㼞㼕㼍㼘㻌㼐㼑㼟㼕㼓㼚㻌㼒㼛㼞㻌㼘㼕㼒㼠㼕㼚㼓㻌㼍㼚㼐㻌㼘㼑㼢㼕㼠㼍㼠㼑㼐㻌㼠㼥㼜㼑㻌㼛㼒㻌㻿㻹㻮㻌㼔㼕㼓㼔㻌㼟㼜㼑㼑㼐㻌㼞㼛㼠㼛㼞㻌㼟㼡㼜㼜㼛㼞㼠㻌㻙㻌㻌㻌ᒣୗ㻌 ▱ஂ䠈ᐑᓮ㻌 ెᶞ䠈ᯇỤ㻌 ோ䠄㕲㐨⥲◊䠅䠗ᯇᒸ㻌 ኴ㑻䠈୰ᑿ㻌 ೺࿃䠄ྂἙ㟁ᕤ䠅㻌ΎỈ㻌 ⚽ᶞ䠈⃝ᮧ㻌 ⚽ḟ䠈ᑠ⃝㻌 Ꮥோ䠄䝭䝷䝥䝻䠅䠗ᯇ஭㻌 ⩏䠈ᅵ⫧㻌 ဴஓ䠄ᯇ஭㗰ᮦ䠅䠗ୖᓥ㻌 ྐ⏕䠄䝇䝔䞁䝺䝇䝥䝻䝎䜽䝖䠅㻌᳃ᮏ㻌 ᐩ἞䠈ᚨỌ㻌 ᏹ䠈㢼㛫㻌 ❳ஓ䠈ὸ㔝㻌 ᖾ㞝䠄୕ᫍᕤᴗ䠅㻌㼅㻭㻹㻭㻿㻴㻵㼀㻭㻌㼀㼛㼙㼛㼔㼕㼟㼍㻘㻌㻹㻵㼅㻭㼆㻭㻷㻵㻌㼅䡋䡏䡄䡅䡇䡅䠈㻹㻭㼀㻿㼁㻱㻌㻴㼕㼠㼛㼟㼔㼕㻌㻔㻾㼀㻾㻵㻕㻌㻹㻭㼀㻿㼁㻻㻷㻭㻌㼀㼍㼞㼛㻘㻌㻺㻭㻷㻭㻻㻌㻷㼑㼚㼓㼛㻌㻔㻲㼡㼞㼡㼗㼍㼣㼍㻌㻱㼞㼑㼏㼠㼞㼕㼏㻌㻯㼛㻚㻘㻸㼠㼐㻚㻕㻌㻿㻵㻹㻵㼆㼁㻌㻴㼕㼐㼑㼗㼕䠈㻿㻭㼃㻭㻹㼁㻾㻭㻌㻿㼔㼡㼖㼕䠈㻻㼆㻭㼃㻭㻌㼀㼍㼗㼍㼔㼕㼠㼛㻌㻔㻹㼕㼞㼍㼜㼞㼛㻌㻯㼛㻚㻘㻸㼠㼐㻕㻌㻹㻭㼀㻿㼁㻵㻌㼅㼛㼟㼔㼕㻘㻌㻰㻻㻴㻵㻌㼀㼑㼠㼟㼡㼥㼍㻌㻔㻹㼍㼠㼟㼡㼕㼗㼛㼦㼍㼕㻌㻯㼛㻚㻘㻸㼠㼐㻚㻕㻧㻌㼁㻱㻶㻵㻹㻭㻌㻲㼡㼙㼕㼛㻌㻔㻿㼠㼍㼕㼚㼘㼑㼟㼟㻙㼜㼞㼛㼐㼡㼏㼠㻌㻯㼛㻚㻘㻌㻸㼠㼐㻚㻕㻌㻹㻻㻾㻵㻹㻵㼀㻻㻌㼀㼛㼙㼕㼖㼕㻘㻌㼀㻻㻷㼁㻺㻭㻳㻭㻌㻴㼕㼞㼛㼟㼔㼕㻘㻌㻷㻭㼆㻭㻹㻭㻌㼀㼍㼠㼟㼡㼥㼍㻘㻌㻭㻿㻭㻺㻻㻌㼅㼡㼗㼕㼛㻌㻔㻹㼕㼠㼟㼡㼎㼛㼟㼔㼕㻙㼗㼛㼓㼥㼛㻌㻯㼛㻚㻘㻌㻸㼠㼐㻚㻕㻌㻱㻙㼙㼍㼕㼘㻦㻌㼥㼍㼙㼍㼟㼔㼕㼠㼍㻚㼠㼛㼙㼛㼔㼕㼟㼍㻚㻥㻝㻬㼞㼠㼞㼕㻚㼛㼞㻚㼖㼜㻌
㻌䛺䛚๓㏙䛾 㻭㻲㻾㻼 䝻䝑䝗䛾㍈ᚄ䛿䚸᪤Ꮡ䛾ᐇドᶵ⏝䠯䠩䠞䝁㻝䠊䛿䛨䜑䛻㻌
䜲䝹ෆᵴ⏝Ⲵ㔜ᨭᣢᮦ䛾ᙉᗘ≉ᛶ䛛䜙᥮⟬䛧䛶タᐃ䛧䛯䚹㻌㕲㐨⥲◊䛿 㻾㻱㻮㻯㻻 㧗 ㉸㟁ᑟ䝁䜲䝹䛸 㻾㻱㻮㻯㻻 㧗 ㉸㟁௒ᅇ䛾ヨタィ䛻䛒䛯䜚䚸せ⣲ヨస䛧䛯ⷧ⫗ 㻳㻲㻾㻼 䝟䜲䝥䛾ᑟ䝞䝹䜽య䠄㻴㼀㻿 䝞䝹䜽䠅䜢⤌ྜ䛫䛯㉸㟁ᑟ☢Ẽ㍈ཷ䠄䠯䠩䠞䠅ᅽ⦰ᙉᗘヨ㦂➼䛾ヲ䛧䛔⤖ᯝ䛻䛴䛔䛶䛿ᙜ᪥ሗ࿌䛩䜛䚹㻌䛷䚸኱㉁㔞䝣䝷䜲䝩䜲䞊䝹䜢㠀᥋ゐᨭᣢ䛩䜛䛣䛸䜢≉ᚩ䛸䛧䛯㻌㧗 ㉸㟁ᑟ䝣䝷䜲䝩䜲䞊䝹⵳㟁⿦⨨䜢ᥦၐ䛧䚸⌧ᅾ䠪䠡䠠䠫㻡䠊ㅰ㎡㻌䛾ຓᡂ䜢ཷ䛡䛶 㻝㻜㻜㻌 㼗㼃㼔 䛾ᐇドᶵ䜢㛤Ⓨ䚸ᒣ᲍┴⡿಴ᒣ䛾ኴ㝧ගⓎ㟁ᡤ䛾ᐇドヨ㦂᪋タ䛷᳨ドヨ㦂䜢㐍䜑䛶䛔䜛䠷㻝䠹䚹㻌 㻌 㻌 㻌 ௒ᅇࡢヨタィ࡟㝿ࡋ࡚ 㻴㼀㻿 䝞䝹䜽䛻┤ᚄ 㻟㻜㼙㼙 䛾㈏㏻✰
タ⨨䛻ᑐ䛧䛶䚸᪂᪥㚩ఫ㔠Ẋ䜘䜚☢᮰䛾⿵㊊≉ᛶ䜈䛾㈏㏻
௒ᅇ㛤Ⓨ䛧䛯ᐇドᶵ䛿䚸ᕼⷧ䜺䝇䝦䝸䜴䝮୰䛷┤ᚄ 㻞㻜㻜㻜㼙㼙䚸✰䛾ᙳ㡪ᗘྜ䛔䜔ලయⓗ䛺〇సἲ䛻㛵䛧䛶᭷┈䛺䛤ຓゝ䛸㉁㔞 㻠㻜㻜㻜㻌 㼗㼓 䛾኱㉁㔞䝣䝷䜲䝩䜲䞊䝹䜢 㻟㻜㻜㻜䋽㻢㻜㻜㻜㼙㼕㼚㻙㻝 䛷ᩘከ䛟䛾᝟ሗᥦ౪䜢㡬䛝䜎䛧䛯䚹䛣䛣䛻῝ㅰ⏦䛧ୖ䛢䜎䛩䚹㻌ᅇ㌿䠄ຍ㏿䞉ῶ㏿䠅䛥䛫⵳㟁䞉ᨺ㟁ྍ⬟䛺タィ䛷䛒䜛䚹⿦⨨ෆ㒊䜢⣙ 㻝㻜㻼㼍 䛾䜺䝇䝦䝸䜴䝮䛷‶䛯䛩䛾䛿䚸኱㉁㔞䝣䝷䜲䝩䜲ᮏ◊✲䛿ᅜ❧◊✲㛤Ⓨἲே᪂䜶䝛䝹䜼䞊䞉⏘ᴗᢏ⾡⥲ྜ䞊䝹䛾㢼ᦆపῶ䛚䜘䜃 㻴㼀㻿 䝞䝹䜽䜢෭༷䛩䜛䛯䜑䛷䛒䜛䚹㻌㛤Ⓨᶵᵓ䠄㻺㻱㻰㻻䠅䛾ຓᡂ஦ᴗ䛸䛧䛶ᐇ᪋䛧䛶䛔䜛䚹㻌⡿಴ᒣ䜐䛡ᐇドᶵ䛷䛿䠯䠩䠞䜢⿦⨨ୗ㒊䛻タ⨨䚸㻠㻜㻜㻜㻌 㼗㼓㻌㻌䛾኱㉁㔞䝣䝷䜲䝩䜲䞊䝹䛾Ⲵ㔜䜢ᅽ⦰᪉ྥ䛻స⏝䛥䛫䜛䛣䛸䜢๓ᥦ䛻㧗㏿ᅇ㌿ྍ⬟䛺Ⲵ㔜ᨭᣢయ䜢タィ䛧䛶䛝䛯䠷㻞䠹䚹㻌௒ᅇ䚸᪤Ꮡ䛾䠯䠩䠞䝴䝙䝑䝖䜢ኳᆅ㏫㌿䛥䛫䛶䜒㒊ศ෭༷ἲ䛜⥔ᣢ䛥䜜䚸ྞ䜚ୖ䛢᪉ᘧ䠯䠩䠞䛜ᡂ❧䛩䜛䛣䛸䜢ᐇ㦂ⓗ䛻☜ㄆ䛷䛝䛯▱ぢ䜢㋃䜎䛘䚸㻝㻜㻘㻜㻜㻜㻌㼗㼓㻌 䛾኱㉁㔞䝣䝷䜲䝩䜲䞊䝹䜢⿦⨨ୖ㒊䛛䜙ྞ䜚ୖ䛢ྍ⬟䛺䠯䠩䠞䛾ヨタィ䜢ᐇ᪋䛧䛯䚹㻌㻌㻞䠊㛤Ⓨ䝁䞁䝉䝥䝖㻌ྞ䜚ୖ䛢᪉ᘧ䠯䠩䠞䛜‶㊊䛩䜉䛝᮲௳䛿௨ୗ䛾䛸䛚䜚㻌䐟኱ᚄ䝣䝷䜲䝩䜲䞊䝹䛾Ⲵ㔜䜢ྞ䜚ୖ䛢Ᏻᐃᾋୖ䛷䛝䜛䛣䛸㻌䐠㧗䛔ྠᚰᛶ䜢᭷䛧䚸㧗㏿ᅇ㌿䛻ᑐᛂ䛷䛝䜛䛣䛸㻌䐡෭෾⬟ຊ䛻ᑐ䛧䛶䚸ప⇕౵ධ໬䜢ᐇ⌧䛷䛝䜛䛣䛸㻌㻌 㻌㻌㻌㻌㻲㼕㼓㻚㻝㻌㻯㼛㼛㼘㼕㼚㼓㻌㼜㼞㼛㼜㼑㼞㼠㼥㻌㼛㼒㻌㻿㻹㻮㻌㼡㼚㼕㼠㻌㼕㼚㻌㼡㼜㼟㼕㼐㼑㻌㼐㼛㼣㼚㻌㼟㼠㼍㼠㼑㻌㻟䠊䠯䠩䠞䝴䝙䝑䝖䛾ኳᆅ㏫㌿ヨ㦂㻌㻌๓㏙䛾㛤Ⓨ䝁䞁䝉䝥䝖䐡䛾ప⇕౵ධ≉ᛶ䛾஦๓᳨ド䛸䛧䛶㼀㼍㼎㼘㼑㻌㻝㻌 㻿㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㼟㻌㼛㼒㻌㻿㻹㻮㻌㼔㼕㼓㼔㻌㼟㼜㼑㼑㼐㻌㼞㼛㼠㼛㼞㻌㼟㼡㼜㼜㼛㼞㼠㻌᪤Ꮡ䛾䠯䠩䠞䝴䝙䝑䝖䜢ヨ㦂య䛸䛧䛶ኳᆅ䜢㏫㌿䛧෭෾ᶵ෭༷
㻹㼍㼤㼕㼙㼡㼙㻌㼘㼛㼍㼐㻌㻝㻜㻘㻜㻜㻜㻌㼗㼓㻌
ヨ㦂䜢ᐇ᪋䛧䛯䚹㻲㼕㼓㻚㻝 䛻䛭䛾෭༷≉ᛶ䜢♧䛩䚹䜾䝷䝣䜘䜚 㻤㻼㼍㻹㼍㼤㼕㼙㼡㼙㻌㼟㼜㼑㼑㼐㻌㻣㻘㻜㻜㻜㻌㼙㼕㼚㻙㻝㻌䛷䛾᭱ప฿㐩 ᗘ䛿䚸㻴㼀㻿 䝁䜲䝹䠘㻝㻤㻷䠈㻴㼀㻿 䝞䝹䜽䠘㻞㻟㻷㻸㼑㼢㼕㼠㼍㼠㼑㼐㻌㼓㼍㼜㻌㻞㻜㻌㼙㼙㻌
䛷䠯䠩䠞䝴䝙䝑䝖䛾ኳᆅ㏫㌿䛾㢧ⴭ䛺ᙳ㡪䛿ぢ䜙䜜䛺䛛䛳䛯䚹㻌㻴㼀㻿㻌㼎㼡㼘㼗㻌㼒㼛㼞㻌㼘㼑㼢㼕㼠㼍㼠㼕㼛㼚㻌㼐㼕㼍㻚㻌㻝㻞㻜㽢㼠㻞㻜㻌㼙㼙䚸㻝㻌㼜㼑㼍㼏㼑䛣䛾⤖ᯝ䛛䜙䚸ᕼⷧ䜺䝇䝦䝸䜴䝮䛻䜘䜛㒊ศ෭༷ἲ䛜ྞ䜚ୖ㻴㼀㻿㻌㼎㼡㼘㼗㻌㼒㼛㼞㻌㼓㼡㼕㼐㼍㼚㼏㼑㻌㻌 㼐㼕㼍㻚㻌㻥㻜㽢㼠㻞㻜㻌㼙㼙䚸㻞㻌㼜㼑㼍㼏㼑䛢᪉ᘧ䠯䠩䠞䛻䜒㐺⏝䛷䛝䜛䛸⪃䛘䚸䛭䛾ヨタィ䛻╔ᡭ䛧䛯䚹㻌㻌㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㼛㼒㻌㻴㼀㻿㻌㼎㼡㼘㼗㻌㻸㼑㼟㼟㻌㼠㼔㼍㼚㻌㻢㻡㻷㻌㻠䠊ྞ䜚ୖ䛢᪉ᘧ䠯䠩䠞䛾ヨタィ㻌㻴㼑㼍㼠㻌㼘㼛㼍㼐㻌㻸㼑㼟㼟㻌㼠㼔㼍㼚㻌㻟㼃㻌㼀㼍㼎㼘㼑㻌㻝 䛻௒ᅇ᳨ウ䛧䛯Ⲵ㔜ᨭᣢయ䛾タィㅖඖ䜢♧䛩䚹㻌㻭㻲㻾㻼㻌㼞㼛㼐㻌㼐㼕㼍㻚㻌㻞㻠㻌㼙㼙㻌ྞ䜚ୖ䛢᪉ᘧ䠯䠩䠞䝻䞊䝍Ⲵ㔜ᨭᣢయ䛿䚸㧗ᙉᗘ䞉㧗᩿⇕䠝䠢㻳㻲㻾㻼㻌㼜㼕㼜㼑㻌㼐㼕㼍㻚㻌㻝㻜㻜㻌㼙㼙㻌䠮䠬䝻䝑䝗䜢௓䛧䛶ప 㒊䛾䠤䠰䠯䝞䝹䜽䠷㻞䠹䜢཰⣡䛩䜛䠣䠢䠮䠬㻸㼑㼚㼓㼠㼔㻌
㻭㼞㼛㼡㼚㼐㻌㻟㻤㻡㻌㼙㼙㻌䝩䝹䝎䞊䛸 㻿㼁㻿 〇䛾ᖖ ഃ䝣䝷䞁䝆䜢⤌ྜ䛫䛶኱ᚄ䝣䝷䜲䝩㻌䜲䞊䝹䛾Ⲵ㔜䛻ᑐᛂ䛧䚸┤ᚄ 㻝㻜㻜㼙㼙 ⫗ཌ 㻞㼙㼙 䛾ⷧ⫗ 㻳㻲㻾㻼ཧ⪃ᩥ⊩㻌䝟䜲䝥䛷ప ഃ䝩䝹䝎䞊䛸ᖖ ഃ䝣䝷䞁䝆䜢┤⤖䛩䜛䛣䛸䛷㻝㻚㻌㻴㻚㻌㻴㼍㼟㼑㼓㼍㼣㼍㻘㻌㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻥㻝㻌㧗㏿ᅇ㌿䛻ᑐᛂ䛩䜛タィ䛸䛧䛯䚹䛺䛚㧗ᙉᗘ䞉㧗᩿⇕䠝䠢䠮䠬㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻝㻌䝻䝑䝗䛿䚸䛣䛾㛤Ⓨ䛾᭱⤊┠ᶆ䛾௙ᵝ䠄᭱኱Ⲵ㔜 㻝㻜㻘㻜㻜㻜㻌 㼗㼓䠅㻞㻚㻌 㼀㻚㼅㼍㼙㼍㼟㼔㼕㼠㼍㻘㼑㼠㻌㼍㼘㻚㻦㻌㻭㼎㼟㼠㼞㼍㼏㼠㼟㻌㼛㼒㻌㻯㻿㻿㻶㻌㻯㼛㼚㼒㼑㼞㼑㼚㼏㼑㻘㻌㼂㼛㼘㻚㻌㻥㻝㻌䛻ᑐᛂྍ⬟䛺タィ䛸䛩䜛䛯䜑䚸㍈ᚄ䜢┤ᚄ 㻞㻠㻌㼙㼙 䛸䛧䛯䚹㻌㻔㻞㻜㻝㻡㻕㻌㼜㻚㻝㻠㻌̿̿

第92回

2015年度秋季低温工学・超電導学会