㊀ὐ↥ᬺ೑↪⺖㗴ႎ๔ᦠԘ ታᣉ⺖㗴⇟ภ㧦 㧞㧜㧜㧣㧭㧝㧥㧜㧞ԙ ታᣉ⺖㗴ฬ㧦 Nd-Fe-B ♽὾⚿⏛⍹ߦᓸ㊂ᷝടߒߚ Ag ߩⰯశ EXAFSԚ ታ㛎⽿છ⠪ᚲዻᯏ㑐෸߮᳁ฬ㧦ᣣ┙㊄ዻᩣᑼળ␠⏛ᕈ᧚ᢱ⎇ⓥᚲ ᐢᴛ ື ‫ޔ‬ᷓᎹᥓᯏ‫ޔ‬ዊ㜞ᥓ❱ችၔᎿᬺ㜞╬ኾ㐷ቇᩞ✚ว⑼ቇ♽ℂᢙ⑼ ᧻ᶆ ⌀‫੹ޔ‬㊁৻ᒎԛ ૶↪ࡆ࡯ࡓ࡜ࠗࡦ㧦 㧮㧸㧜㧝㧮㧝‫ޣ‬ታ㛎⚿ᨐ᭎ⷐ‫ޤ‬☳ᧃಃ㊄ࡊࡠ࠮ࠬߦࠃࠅ 31Nd-1B-0.17Ag-0.04Al-ᱷㇱ Fe(wt%)ߩ὾⚿⏛⍹⹜ᢱࠍ⏛⇇㈩ะ᦭ή߅ࠃ߮὾⚿ᓟᾲಣℂ᦭ήߩว⸘ 4 ⒳ߩ⁁ᘒߦ૞⵾ߒߚ‫ޕ‬ᾲಣℂ᷷ᐲߪ 620͠‫ᤨޔ‬㑆ߪ 2 ᤨ㑆ߣߒߚ‫ޕ‬EXAFS ᷹ቯߪ BL01B1 ߩ EXAFS ᷹ቯⵝ⟎ߣࠢ࡜ࠗࠝࠬ࠲࠶࠻ࠍ↪
޿ߡ 20K ߢⰯశᴺߦࠃࠅታᣉߒߚ‫ޕ‬ోߡߩ⹜ᢱߦߟ޿ߡ᣿⍎ߥ EXAFS ߇ kmax= 20 ƒ-1 ㄭற߹ߢⷰኤߐࠇߚ‫ޕ‬ᾲಣℂߩ᦭ήߦ㑐ଥߠߌࠄࠇࠆࠃ߁ߥ kǿ(k)߅ࠃ߮ F(r)ߩ㆑޿ߪ߶ߣࠎߤ⹺߼ࠄࠇߥ޿‫ޕ‬F(r)ߩၮᧄ⊛ࡊࡠࡈࠔࠗ࡞ߪ CxCl ဳߩ NdAg(ⓨ㑆⟲ Pm3m, a0 = 0.3714 nm)ߦ৻⥌ߔࠆߎߣ߆ࠄ‫ޔ‬ᷝടߒߚ Ag ߩᄢㇱಽߪ NdAg ൻว‛ߣߒߡሽ࿷ߒ‫ޔ‬ᾲಣℂߦࠃߞߡᄌൻߒߥ޿ⅣႺਅߦ޽ࠆߎߣ߇ಽ߆ߞߚ‫ޕ‬ᾲಣℂߦࠃࠆ F(r)ߩᄌൻࠍᒝ޿ߡ⹺߼ࠆߣߔࠇ߫‫ޔ‬ᾲಣℂᓟߩࡔࠗࡦࡇ࡯ࠢߩฝ⵿‫ޔ‬r = 0.325 nm ߩ૏⟎ߦዊߐߥ⢋߇⹜ᢱᚑᒻᤨߩ⏛⇇㈩ะߩ᦭ήߦ㑐ࠊࠄߕ౒ㅢߔࠆ․ᓽߣߒߡ᜼ߍࠄࠇࠆ߇‫ߩߎޔ‬ᄌൻ߇᷹ቯ♖ᐲߩⷰὐ߆ࠄ᦭ᗧ߆ߤ߁߆
߽฽߼ߡ‫੹ޔ‬ᓟߐࠄߦ⹦⚦ߥ⎇ⓥ߇ᔅⷐߣ⠨߃ࠄࠇࠆ‫ޕ‬㧝㧚✜⸒
Nd-Fe-B ♽὾⚿⏛⍹ߪ 1980 ᐕઍೋ㗡ߦ૒Ꮉࠄߦࠃࠅ⊒᣿ߐࠇߚ⃻࿷ᦨ㜞ᕈ⢻ߩ⏛⍹᧚ᢱߢ޽ࠆ[1]‫⊒ޕ‬᣿ᓟ 20 ᐕࠍ⚻ߡߘߩᕈ⢻ߪ㘧べ⊛ߦะ਄ߒ‫੹ޔ‬ᓟߪ߹ߔ߹ߔ㔚ሶ೙ᓮൻߐࠇࠆ⥄േゞߩ㔚േࠕࠢ࠴ࡘࠛ࡯࠲߅ࠃ߮࠮ࡦࠨߦ૶↪ߐࠇࠆߛߌߢߥߊ‫࡝ࡉࠗࡂޔ‬࠶࠼⥄േゞߩ㚟േ♽ߥߤߩᣂⷙ↪ㅜ߇᜛ᄢߒ‫ߩߘޔ‬㔛ⷐ߇᜛ᄢߔࠆߣ੍᷹ߐࠇߡ޿ࠆ‫ޕ‬ߣߎࠈ߇‫⥄ߩࠄࠇߎޔ‬േゞ↪ㅜߢߪ⏛⍹᷷ᐲ߇਄᣹ߒߡ߽⏛ജࠍ⛽ᜬߔࠆߎߣ߇⵬ఘߐࠇߨ߫ߥࠄߕ‫ߦ߼ߚߩߘޔ‬ర⚛ߩࠢ࡜࡯ࠢᢙ߆ࠄߺࠇ߫ࡃ࡜ࡦࠬࠍᰳ޿ߚ㊂ߩ㊀Ꮧ࿯㘃ర⚛ࠍᷝടߒߡ଻⏛ജࠍჇᒝߔࠆߣ޿߁ᚻᴺ߇ߣࠄࠇߡ޿ࠆ[2]‫੹ޕ‬ᓟ‫⏛ޔ‬⍹ߩᄢ㊂ᶖ⾌ᤨઍࠍㄫ߃ࠆߦᒰߚࠅ‫ߥ߁ࠃߩߎޔ‬੐ᘒ߆ࠄ⣕ළߒߡ‫ޔ‬ᄢ㊂ᶖ⾌ߦ⠴߃ࠆ⏛⍹⚵ᚑࠍ᦭ߒߥ߇ࠄ߽‫ޔ‬㜞᷷ߢߩ૶↪ߦ⠴߃ࠆ⏛⍹᧚ᢱߩ㐿⊒߇᳞߼ࠄࠇߡ޿ࠆ[3]‫ޕ‬Nd-Fe-B ♽὾⚿⏛⍹ߩ଻⏛ജ߇὾⚿ᓟߩᾲಣℂߦࠃࠅᡷༀߐࠇࠆߎߣߪฎߊ߆ࠄ⍮ࠄࠇߡ޿ࠆ߇[1]‫ߦ⽎⃻ߩߘޔ‬ᓸ㊂ߩ Cu ߿ Al ߩሽ࿷߇ᄢ߈ߊ㑐ࠊߞߡ޿ࠆߎߣ߇ߘߩᓟߩ
⎇ⓥߦࠃࠅ᣿ࠄ߆ߦߥߞߡ޿ࠆ[4]‫੹ޕ‬࿁‫ޔ‬ᚒ‫ߪޘ‬ᾲಣℂߦ߅ߌࠆᓸ㊂ᷝടర⚛ߩᓎഀࠍ⸃᣿ߔࠆ⋡⊛ߢ‫ޔ‬Cu ߣหዻߢ⏛⍹᭴ᚑర⚛ߩๆ෼┵ߣߩᐓᷤ߇ዋߥ޿ Ag ࠍ↪޿ߡ‫ޔ‬ᾲಣℂߦ઻߁ Ag ේሶ๟࿐ߩዪᚲ᭴ㅧߩᄌൻࠍᝒ߃ࠆߎߣࠍ⹜ߺߚ‫ޕ‬㧞㧚ታ㛎ᣇᴺ☳ᧃಃ㊄ࡊࡠ࠮ࠬߦࠃࠅ 31Nd-1B-0.17Ag-0.04Al-ᱷㇱ Fe(wt%)ߩ὾⚿⏛⍹⹜ᢱࠍ⏛⇇㈩ะ᦭ή߅ࠃ߮὾⚿ᓟᾲಣℂ᦭ήߩว⸘ 4 ⒳ߩ⁁ᘒߦ૞⵾ߒߚ‫ޕ‬ᾲಣℂ᷷ᐲߪ 620͠‫ᤨޔ‬㑆ߪ 2 ᤨ㑆ߣߒߚ‫ ࠄࠇߎޕ‬4 ⹜ᢱߩᱷ⇐⏛᧤ኒᐲ(Br)ߣ଻⏛ജ(HcJ)ࠍ⴫ 1 ߦ␜ߔ‫ޕ‬⹜ᢱߪ࠳ࠗࠕࡕࡦ࠼⎎⍹ࠍ↪޿ߡࠨ࡯ࡈࠚࠬࠣ࡜ࠗࡦ࠳ߦࠃࠅ 3mm5mm12mm
ߩ⋥ᣇ૕ߦടᎿߒߚ‫⇇⏛ޕ‬㈩ะߒߚ⹜ᢱߩ㈩ะᣇะߪ 5mm ߩ⒫ߦᐔⴕߢ‫ޔ‬X ✢ߪ 3mm
12mm ߩ㕙ߦᾖ኿ߒߚ‫ޕ‬EXAFS ᷹ቯߪ BL01B1 ߩ EXAFS ᷹ቯⵝ⟎ߣࠢ࡜ࠗࠝࠬ࠲
࠶࠻ࠍ↪޿ߡ 20K ߢⰯశᴺߦࠃࠅታᣉߒߚ‫ޕ‬ᬌ಴ེߪ 20 ⚛ሶߩᄙ⚛ሶඨዉ૕ᬌ಴ེࠍ↪޿ߚ‫ޕ‬㧟㧚ታ㛎⚿ᨐోߡߩ⹜ᢱߦߟ޿ߡ᣿⍎ߥ EXAFS ߇ kmax= 20 ƒ-1 ㄭற߹ߢⷰኤߐࠇߚ‫ޕ‬Ag ߩ K ๆ෼┵ߦ߅ߌࠆ EXAFS 㑐ᢙ kǿ(k)߅ࠃ߮ߘࠇࠄߩߘߩࡈ࡯࡝ࠛᄌ឵㧔േᓘಽᏓ㑐ᢙ㧕F(r)ࠍ࿑㧝ߦ␜ߔ‫ޕ‬ᾲಣℂߩ᦭ήߦ㑐ଥߠߌࠄࠇࠆࠃ߁ߥ kǿ(k)߅ࠃ߮ F(r)ߩ㆑޿ߪ߶ߣࠎ
ߤ⹺߼ࠄࠇߥ޿‫ⷰޕ‬ኤߐࠇߚ F(r)ࠍࡈࠖ࠶࠹ࠖࡦࠣߔࠆ୥⵬ߣߒߡ CsCl ဳ NdAg‫ޔ‬AlB2
ဳ NdAg2‫ޔ߮ࠃ߅ޔ‬ᶧ⋧὾⚿ᤨߦ↢ᚑߔࠆ Nd-rich ᶧ⋧߇ಝ࿕ߔࠆ㓙ߦ↢ᚑߔࠆߣ⠨߃
ࠄࠇࠆ Nd ㉄ൻ‛ߦ࿕ṁߒߚ႐วࠍᗐቯߒߡ NdO2(fluorite)‫ޔ‬C ࠲ࠗࡊ Nd2O3(Mn2O3 ဳ)ߩ㉄⚛ࠨࠗ࠻ߦ Ag ߇౉ߞߚ႐ว‫ޔߦࠄߐޔ‬Ag ࡔ࠲࡞න૕ߩ F(r)㑐ᢙࠍ⸘▚ߒߚ⚿ᨐࠍ࿑㧞ߦ␜ߔ‫ߩߎޕ‬࿑ߦ␜ߔࠃ߁ߦ‫ޔ‬F(r)ߩၮᧄ⊛ࡊࡠࡈࠔࠗ࡞ߪ CsCl ဳߩ NdAg(ⓨ㑆⟲Pm3m, a0 = 0.3714 nm)ߦ৻⥌ߔࠆߎߣ߆ࠄ‫ޔ‬ᷝടߒߚ Ag ߩᄢㇱಽߪ NdAg ൻว‛ߣߒߡሽ࿷ߒ‫ޔ‬ᾲಣℂߦࠃߞߡᄌൻߒߥ޿ⅣႺਅߦ޽ࠆߎߣ߇ಽ߆ߞߚ‫ޕ‬࿑㧟ߦ‫ⷰޔ‬ኤߒߚోߡߩ⹜ᢱߦߟ޿ߡ‫ޔ‬CsCl ဳ NdAg(a0 = 0.3716 nm)ࠍ઒ቯߒߡ▚಴ߒߚ kǿ(k)㑐ᢙ߅ࠃ߮ F(r)㑐ᢙߣታ᷹ߐࠇߚ㑐ᢙߣࠍ㊀ߨߡ␜ߔ‫ޕ‬ਔ⠪ߪᭂ߼ߡࠃ޿৻⥌ࠍ␜ߔ߇‫⚿▚⸘ޔ‬ᨐߣታ᷹⚿ᨐߣߩᏅ߇ kǿ(k)㑐ᢙߦ߅޿ߡߪ߅ࠃߘ 100nm-1 એ਄ߩ㜞 k 㗔ၞߢታ᷹୯ߩᣇ߇ᝄേᝄ᏷߇ᄢ߈ߊᱷߞߡ޿ࠆὐߣ‫ޔ‬F(r)㑐ᢙߦ߅޿ߡߪਥࡇ࡯ࠢ(ᦨㄭធ Nd-Ag ߦኻᔕ)ࠃࠅ߽╙ੑㄭធ(ᦨㄭធ Ag-Ag ߦኻᔕ)߇ᒙ޿ὐߦ޽ࠆ‫ߪࠄࠇߎޕ‬NdAg ߇㕖Ᏹߦዊߐ޿ࠢ࡜ࠬ࠲࡯ߣߒߡሽ࿷ߔࠆߎߣࠍ␜ໂߔࠆ‫ޕ‬
ᾲಣℂߦࠃࠆ F(r)ߩᄌൻࠍᒝ޿ߡ⹺߼ࠆߣߔࠇ߫‫ޔ‬ᾲಣℂ೨ߩ߶߁߇╙ੑㄭធࡇ࡯ࠢ
(ᦨㄭធ Ag-Ag)߇ૐ޿ߎߣߣ‫ޔ‬ᾲಣℂᓟߩࡔࠗࡦࡇ࡯ࠢߩฝ⵿‫ޔ‬r = 0.325 nm ߩ૏⟎ߦዊߐߥ⢋߇⹜ᢱᚑᒻᤨߩ⏛⇇㈩ะߩ᦭ήߦ㑐ࠊࠄߕ౒ㅢߔࠆ․ᓽߣߒߡ᜼ߍࠄࠇࠆ‫ޕ‬೨⠪ߪᦨㄭធ Ag ේሶߩᢙ߇ᾲಣℂ೨ߩ߶߁߇ᾲಣℂᓟߣᲧセߒߡዋߥ޿ߎߣࠍ␜ߒߡ߅
ࠅ‫ޔ‬ᾲಣℂߦࠃߞߡ Ag ߩ๟࿐ߩේሶ㈩೉߇ࠃࠅ CsCl ဳߩⷙೣ㈩⟎ߦㄭߠ޿ߚߎߣࠍ␜
ໂߒߡ޿ࠆ‫ޕ‬ᓟ⠪ߩᄌൻߦߟ޿ߡߪ᷹ቯ♖ᐲߩⷰὐ߆ࠄ᦭ᗧ߆ߤ߁߆߽฽߼ߡ‫੹ޔ‬ᓟߐࠄߦ⹦⚦ߥ⎇ⓥ߇ᔅⷐߣ⠨߃ࠄࠇࠆ‫ޕ‬㧠㧚⠨ኤ
Nd-Fe-B ߩ὾⚿ㆊ⒟ߢߪ Nd ߦን߻ᶧ⋧߇↢ᚑߒ✺ኒൻ߇ㅴ߻ߎߣ߇⍮ࠄࠇߡ޿ࠆ‫ޕ‬Ag ߪ Fe ߦ࿕ṁߖߕᏗ࿯㘃ߣߩⷫ๺ᕈ߇ᒝ޿ߎߣ߆ࠄ‫ޔ‬Nd ߦን߻ᶧ⋧ਛߦỚൻߔࠆߣ⠨߃ࠄࠇ‫ޔ‬὾⚿Ꮏ⒟߆ࠄߩ಄ළಝ࿕ㆊ⒟ߢᶧ⋧߆ࠄࠦࡦࠣ࡞ࠛࡦ࠻ߦ↢ᚑߔࠆ NdAg ൻว‛߇↢ᚑߔࠆߣ⠨߃ࠄࠇࠆ‫ޕ‬Nd-Ag㧞ర♽ߢߩ NdAg ߩⲢὐߪ 952͠ߢ‫ޔ‬㊄ዻ Nd ⋧ߣߩ㑆ߦⲢὐ 640͠ߩ౒᥏෻ᔕ߇޽ࠆ‫ᧄޕ‬ታ㛎ߢ↪޿ߚ⹜ᢱߩᾲಣℂ᷷ᐲߪߎߩ౒᥏෻ᔕ⋥ਅߩ᷷ᐲߢ޽ࠅ‫ޔ‬NdAg ⋧ߪⲢ⸃ߔࠆߎߣߥߊ଻ሽߐࠇࠆߣ⠨߃ࠄࠇࠆ‫ޕ‬὾⚿Ꮏ⒟߆ࠄߩ಄ළㆊ⒟ߢߪᐔⴧಝ࿕⚵❱ߦ೔㆐ߔࠆߎߣߥߊ㕖ᐔⴧಝ࿕⚵❱߇ᒻᚑߐࠇࠆߣ⠨߃ࠆߣ‫ޔ‬ᾲಣℂᎿ⒟ߢߪ⍴〒㔌ߩේሶ⒖േߦࠃࠅ☸⇇᭴ㅧߩ✭๺ߥ޿ߒᐔⴧ
⋧ߩ↢ᚑ߇઻߁ߣᕁࠊࠇࠆ‫ޕ‬Makita ࠄߪᾲಣℂㆊ⒟ߢ Nd2Fe14B ⚿᥏☸ߣ Nd ߦን߻☸
⇇⋧ߣߩ⇇㕙ߦ Nd2Fe14B ߣኻᔕᩰሶ⇇㕙ࠍᒻᚑߔࠆ fcc ᭴ㅧߩ Nd ㉄ൻ‛߇↢ᚑߔࠆߎߣࠍႎ๔ߒߡ޿ࠆ[5]‫ߪ⋧ߩߎޕ‬㕖ᐔⴧ⋧ߢ޽ࠅ‫ᦨޔ‬ㄭ‫ޔ‬ᷓᎹࠄߦࠃࠆ Nd2Fe14B ߣ⫳⌕
Nd ㊄ዻጀߣߩ⇇㕙ߦ↢ᚑߔࠆ㉄ൻ Nd ⋧ߩⷰኤߢ߽↢ᚑ߇⹺߼ࠄࠇ‫⏛ޔ‬⍹⴫㕙ߩ
Nd2Fe14B ⚿᥏☸߇␜ߔ଻⏛ജߩᄢ߈ߐߣߩ࿃ᨐ㑐ଥ߇⏕⹺ߐࠇߡ޿ࠆ[6]‫ޕ‬ᓸ㊂ߦᷝടߒߚ Cu ߩሽ࿷ߣߎߩ fcc ⋧↢ᚑߣߩ㑐ㅪߦߟ޿ߡߪᒝ⏛⇇ਅߢߩᾲಣℂലᨐߣߩ㑐ㅪߩߥ
߆ߢ⑺ደࠄ߇☸⇇⋧ߩⲢὐૐਅߣ㑐ㅪߠߌߡ⼏⺰ߒߡ޿ࠆ[7]‫ޕ‬fcc-Nd ㉄ൻ⋧ߪ a = 0.548nm ࠍ᦭ߒ‫ޔ‬ᷓᎹࠄߦࠃࠇ߫‫ޔ‬Mn2O3 ဳ Nd2O3(ⓨ㑆⟲ Ia-3; a = 1.108 nm)ߩ㉄⚛߇ᰳ៊ߒ㐳๟ᦼ᭴ㅧ߇ᄬࠊࠇర 1/2 ๟ᦼߦ❗ᷫߒߚਇⷙೣ⋧ߣߒߡℂ⸃ߢ߈ࠆ[8]‫ޕ‬
NdAg ߩ↢ᚑߣ fcc-Nd ࡝࠶࠴⋧╬ߩ଻⏛ജߦᓇ㗀ࠍਈ߃ࠆߣ⠨߃ࠄࠇߡ޿ࠆ⋧ߩ↢ᚑ޽ࠆ޿ߪ Nd2Fe14B ߣߩ⚿᥏☸⇇⇇㕙᭴ㅧߣߩ㑐ଥ߅ࠃ߮ߘߩᾲಣℂߦ઻߁ᄌൻߣߩ㑐ଥࠍ᣿⏕ߦ⼏⺰ߔࠆߎߣߪ⃻ᤨὐߢߪߢ߈ߥ޿߇‫ޔ‬fcc-Nd ㉄ൻ‛⋧ߣߩᩰሶኻᔕ⇇㕙ߩ↢ᚑ߇㊀ⷐߢ޽ࠆߣߔࠆ┙႐ߦ┙ߡ߫ Cu ߿ Ag ߩࠃ߁ߦࡂ࡯࠼⏛ᕈ⋧ Nd2Fe14B ߦ౉ࠄߕ‫ޔ‬Nd ߦን߻☸⇇⋧ߦỚ❗ߔࠆ࠲ࠗࡊߩᓸ㊂ᷝടర⚛ߪਥ⋧ߩ⏛ᕈߦ⋥ធᓇ㗀ࠍਈ߃ߕߦ‫ޔ‬Nd ߦን߻☸⇇㉄ൻ‛⋧ߣ Nd2Fe14B ਥ⋧ߣߩ⇇㕙᭴ㅧࠍ੺ߒߡ଻⏛ജߩჇᄢߦ㑐ਈߒߡ޿ࠆน⢻ᕈࠍᜰ៰ߢ߈ࠆ‫ޔߜࠊߥߔޕ‬὾⚿ㆊ⒟ߢ Nd ߦን߻ᶧ⋧ਛߦ฽᦭ߐࠇࠆ㉄⚛
߇὾⚿಄ළᓟߩᾲಣℂㆊ⒟ߢ਄⸥ Nd ㉄ൻ‛⋧ࠍ Nd2Fe14B ߣߩ⇇㕙ߦ↢ᚑߐߖࠆ෻ᔕߦ߅޿ߡ‫ߩࠄࠇߎޔ‬ᷝടర⚛߇ fcc-Nd ㉄ൻ‛⋧/Nd2Fe14B ⇇㕙ߩᢛวᕈࠍᡷༀߔࠆߥߤߩน⢻ᕈ߇⠨߃ࠄࠇࠆ‫ޕ‬㧡㧚⚿⸒ ὾⚿ Nd-Fe-B ♽⏛⍹ߦᭂᓸ㊂ᷝടߒߚ଻⏛ജჇᄢర⚛ Ag ߩ EXAFS ࠍ᷹ቯߒ‫ޔ‬Ag ߇NdAg ൻว‛ᒻᚑߒߡ޿ࠆߎߣ߇᣿⏕ߦߥߞߚ‫⏛଻ޕ‬ജ୯ࠍჇᄢߐߖࠆᾲಣℂߦࠃࠆࠬࡍࠢ࠻࡞ߩ᣿⏕ߥᏅߪ⹺߼ࠄࠇߥ߆ߞߚ‫ޕ‬NdAg ߩ↢ᚑߣ fcc-Nd ࡝࠶࠴⋧╬ߩ଻⏛ജߦᓇ㗀ࠍਈ߃ࠆߣ⠨߃ࠄࠇߡ޿ࠆ⋧ߩ↢ᚑ޽ࠆ޿ߪ Nd2Fe14B ߣߩ⚿᥏☸⇇⇇㕙᭴ㅧߣߩ㑐

ଥ߅ࠃ߮ߘߩᾲಣℂߦ઻߁ᄌൻߣߩ㑐ଥߦߟ޿ߡߪ‫੹ޔ‬ᓟ‫ߥ⚦⹦ߦࠄߐޔ‬ዪᚲ᭴ㅧ⸃ᨆ߇ᔅⷐߣ⠨߃ࠄࠇࠆ‫ޕ‬㧢㧚ෳ⠨ᢥ₂=?/5CICYC5(WLKOWTC06QICYC*;COCOQVQCPF;/CVUWWTC̌0GYOCVGTKCNHQTRGTOCPGPVOCIPGVUQPCDCUKUQH0FCPF(G̍,#RRN2J[U  =?/5CICYC5(WLKOWTC*;COCOQVQ;/CVUWWTCCPF-*KTCIC̌2GTOCPGPVOCIPGVOCVGTKCNUDCUGFQPVJGTCTGGCTVJKTQPDQTQPVGVTCIQPCNEQORQWPFU̍+'''6TCPU/CIP/#)   =? ଀߃߫‫ᧄ⮮ޔ‬ᘕม‫ޔ‬‫ޟ‬Ꮧዋ⾗Ḯ࡮ర⚛ᚢ⇛ߦኻᔕߔࠆ⎇ⓥࡊࡠࠫࠚࠢ࠻ߩ଀‫ߡ߹ޔޠ‬ࠅ޽‫  ޔ‬=? ଀߃߫‫*ޔ‬-CVQ6/K[C\CMK/5CICYCCPF--Q[COC%QGTEKXKV[GPJCPEGOGPVUD[JKIJOCIPGVKEHKGNFCPPGCNKPIKPUKPVGTGF0F(G$OCIPGVU#RRN2J[U.GVV  =?-/CMKVCCPF1;COCUJKVC̌2JCUGDQWPFCT[UVTWEVWTGKP0F̄(Ḡ$UKPVGTGFOCIPGVU̍#RRN2J[U.GVV  =? ᷓᎹᥓᯏ‫ޔ‬ᐢᴛື‫ ࠲࠶ࡄࠬޟޔ‬0F⤑0F(G$⴫㕙☸⇇㕙ߦ߅ߌࠆ⇇㕙⚵❱ߣ଻⏛ജ⊒⃻ߣߩ㑐ଥ‫ޔޠ‬ᣣᧄ㊄ዻቇળ⻠Ṷ᭎ⷐ㓸‫ ޔ‬ᐕᤐቄᄢળ‫  ޔ‬R
=? ⑺ደ⾆ඳ‫ޔ‬ട⮮ብᦶ‫ޔ‬૒Ꮉ⋿ੱ‫ޔ‬ዊጊ૫৻‫ޔ‬ችፒᾖት‫ޟޔ‬0F&[(G$ ♽὾⚿⏛⍹ߩᒝ⏛႐ਛᾲಣℂߣ଻⏛ജ‫ޔޠ‬ᣣᧄᔕ↪⏛᳇ቇળ⹹‫  ޔ‬=?6(WMCICYCCPF5*KTQUCYC̌+PHNWGPEGQH0F0F(G$KPVGTHCEGOKETQUVTWEVWTGQPEQGTEKXKV[QHUWTHCEG0F(G$ITCKPUKP0FURWVVGTGF0F(G$UKPVGTGFOCIPGVU̍UWDOKVVGFVQ#EVC/CVGTKCNKC࿑⴫ߩ⺑᣿⴫㧝㧚⏛⍹⹜ᢱߩ⏛᳇․ᕈ
࿑㧝㧚ฦ⹜ᢱߩ #I-GFIG ߦ߅ߌࠆ᷹ⷰ⚿ᨐ‫ޕ‬Ꮐ࿑㧦Mǿ M ‫ޔ‬ฝ࿑㧦ߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ( T ‫ޕ‬࿑ਛߩᢙሼߪ⹜ᢱ⇟ภ‫ޕ‬࿑㧞㧚᷹ⷰ⚿ᨐ  ߣฦ᭴ㅧߦ߅ߌࠆ #I-GFIG ߩ⸘▚⚿ᨐ‫ޕ‬Ꮐ࿑ߪ ME M ࠬࡍࠢ࠻࡞‫ޔ‬ฝ࿑ߪߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ‫ޕ‬࿑㧟㧚ฦ⹜ᢱߩ᷹ⷰ⚿ᨐߣ 0F#I %U%N ဳ᭴ㅧ ߣߩࡈࠖ࠶࠹ࠖࡦࠣ⚿ᨐ‫ޕ‬Ꮐ࿑ߪ ME M ࠬࡍࠢ࠻࡞‫ޔ‬ฝ࿑ߪߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ‫ޕ‬⴫㧝㧚⏛⍹⹜ᢱߩ⏛᳇․ᕈ
⇟ภ⏛⇇㈩ะ᦭ήᾲಣℂ᦭ήBr (T)

HcJ (kA/m)

1޽ࠅߥߒ

1.390

6712޽ࠅ޽ࠅ

1.378

9663ߥߒߥߒ0.9168474

ߥߒ

޽ࠅ

0.941

1168



07082222.GPR

07082232.GPR

1.2

1.0

Nd30Fe68.9Ag0.1B

Nd30Fe68.9Ag0.1B

Ag K-edge
20K

Ag K-edge
20K

1.00.8
4

4
0.6

3F(r)

kF (k)

0.8

0.6

3
0.4

2
0.4

2
10.2

0.2

1
0.0

050

100

0.0

150

-1

00.2

k (nm )

0.4

0.6r(nm)࿑㧝㧚ฦ⹜ᢱߩ #I-GFIG ߦ߅ߌࠆ᷹ⷰ⚿ᨐ‫ޕ‬Ꮐ࿑㧦Mǿ M ‫ޔ‬ฝ࿑㧦ߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ( T ‫ޕ‬࿑ਛߩᢙሼߪ⹜ᢱ⇟ภ‫ޕ‬
07082201.GPR



1.4

Nd30Fe68.9Ag0.1B

7



NdAg2(AlB2)Ag K-edge
20K

1.2

NdAg2(AlB2)

1.0Ag(fcc)

Ag(fcc)50.8

Nd2O3(Mn2O3)F(r)kF (k)



Nd30Fe68.9Ag0.1B

Ag K-edge
20K

6




07082211.GPR

84
NdO2(fluorite)

Nd2O3(Mn2O3)
0.6

3

NdO2(fluorite)
NdAg(CsCl)

0.4

2

NdAg(CsCl)2(obs)
0.2

12(obs)



0050

100-1

0.0150k (nm )

00.2

0.4

0.6

r(nm)

࿑㧞㧚᷹ⷰ⚿ᨐ  ߣฦ᭴ㅧߦ߅ߌࠆ #I-GFIG ߩ⸘▚⚿ᨐ‫ޕ‬Ꮐ࿑ߪ ME M ࠬࡍࠢ࠻࡞‫ޔ‬ฝ࿑ߪߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ‫ޕ‬



07082221.GPR07082231.GPR

1.2

1.0

Nd30Fe68.9Ag0.1B

Nd30Fe68.9Ag0.1B

Ag K-edge
20K

Ag K-edge
20K

1.00.8

4



0.80.6




0.6

3F(r)

kF (k)obs
cal(NdAg)

4

3
0.4

2
0.4

2
1
0.2

0.2

0.0

1

obs
NdAg(CsCl)
050

100-1

0.0

1500

k (nm )

0.2

0.4

0.6r(nm)࿑㧟㧚ฦ⹜ᢱߩ᷹ⷰ⚿ᨐߣ 0F#I %U%N ဳ᭴ㅧ ߣߩࡈࠖ࠶࠹ࠖࡦࠣ⚿ᨐ‫ޕ‬Ꮐ࿑ߪ ME M ࠬࡍࠢ࠻࡞‫ޔ‬ฝ࿑ߪߘߩࡈ࡯࡝ࠛᄌ឵ േᓘ᭴ㅧ㑐ᢙ ‫ޕ‬