1 ì7 G0J% ¤Z e V...1 ì 7 G0J% ¤ Z e V FãG G F÷Fþ4ß ì"@2x7Á _GAG2GyFþ%Ê'2 B ÝG" öFûF¸...
1
৬ಞഐ 0J% தਗ਼॥ঝ 䛣䜜䜎䛷䛾㓟≀㉸㟁ᑟ䝁䜲䝹䛾◊✲ᡂ ᯝ䜢ᇶ䛻䚸ᚑ᮶䛾㉸㟁ᑟ⥺ᮦ䜘䜚Ᏻ౯䛺 MgB 2 ⥺ᮦ䜢⏝䛔䛯䝁䜲䝹䛾㛤Ⓨ䜢᥎㐍 䛩䜛䛣䛸䛷䚸㉸㟁ᑟᢏ⾡䛾⏘ᴗᛂ⏝䛾᪩ ᮇᐇ⌧䜢┠ᣦ䛧䛶䛔䜎䛩䚹 ᮏ◊✲䛾㒊䛿䚸ᅜ❧◊✲㛤Ⓨἲே⛉Ꮫᢏ⾡⯆ᶵᵓ䠄JST)䛛䜙䛾ጤク䛻䜘䜚䚸ᐇ䛧䛶䛚䜚䜎䛩䚹 〇స䛧䛯MgB 2 䝁䜲䝹እほ ᕳ⥺㒊ᣑ ᡂ ᯝ 㛤Ⓨ⌧ࡢ≧ 㔠ᒓ⣔㉸㟁ᑟయ 㓟≀⣔㉸㟁ᑟయ 㸦㧗 ㉸㟁ᑟయ㸧 1910 1930 1950 1970 1990 10 30 50 70 90 110 130 150 㸦 㸧 Ỉ㖟 ㉸㟁ᑟࡢⓎぢ 㔠ᒓ⣔ࡢቨ 㹀㹁㹑⌮ㄽ ࡢ㝈⏺ ᗘ" 㓟≀⣔ࡢⓎぢ ᾮయ+H ᾮయ❅⣲ Y⣔ Bi ⣔ Tl ⣔ Hg ⣔ K Nb 3 Sn (18K) NbTi (10K) La ⣔ 77K (-196 Υ ) 4K (-269 Υ ) 135K (-138 Υ ) 㧗ᅽୗ⮫⏺ ᗘXS ➨✀㉸㟁ᑟయࡢ㛤Ⓨ 㸦 ࢽ ࢢᶵᵓ ࡢゎ㸧 ㉸㟁ᑟࢢࡢࢺ㛤Ⓨ ᛂ⏝ᶵჾࡢウ ᴟప ෭ ࡀᚲせ ᐇ⏝ ࡢไ⣙ ᗘ ࡢᣮᡓ ⮫ ⏺ ᗘ 7F 2000 C60 MgB2 ㉸㟁ᑟㄏᑟຍ⇕⨨䛡㉸㟁ᑟ䝁䜲䝹 つᶍ✵ㄪ䛡☢Ẽ䝠䞊䝖䝫䞁䝥⏝㉸㟁ᑟ䝁䜲䝹 ⢏Ꮚຍ㏿ჾ䛡ᆺ㉸㟁ᑟ䝁䜲䝹 䛺䛹 MgB 2 ⥺ᮦ䜢⏝䛔䛯䝁䜲䝹䜢〇స䛧タィ㏻䜚䛾ᛶ⬟䜢☜ㄆ 䠄150 A㏻㟁䠅 ⥺ᮦ〇స⪅ Columbus♫䠄䜲䝍䝸䜰䠅 ᮦ㉁ MgB 2 㔠ᒓ䝅䞊䝇㉸㟁ᑟ ⥺ᮦ ⥺ᮦ㠃 ᑍἲ ᖜ3.5 mm × ཌ䛥0.65mm ⥺ᮦ㛗 ⣙50 m ᙧ≧ 䝅䞁䜾䝹䝟䞁䜿䞊䜻ᆺ እᚄ 䝁䜲䝹య䛷䃥220mm ✚䜶䝛䝹䜼䞊䠖20J┦ᙜ タィ㏻䜚䛾ᛶ⬟䠄䝁䜲䝹㟁ὶ150 A, ☢ሙ0.005 T @ 35 K) 䜢☜ㄆ 䞉Columbus♫MgB2⥺ᮦ⏝ JSTᡓ␎ⓗ㐀◊✲᥎㐍ᴗ / ඛ➃ⓗపⅣ⣲ᢏ⾡㛤Ⓨ䠄ALCA) ↙ оЈ↧↝ਪ