SUPERCONDUCTING WHISKERS AND CRYSTALS OF THE HIGH-TC BI2SR2CA2CU3O10 PHASE

被引:38
作者
MATSUBARA, I [1 ]
TANIGAWA, H [1 ]
OGURA, T [1 ]
YAMASHITA, H [1 ]
KINOSHITA, M [1 ]
KAWAI, T [1 ]
机构
[1] OSAKA UNIV, INST SCI & IND RES, IBARAKI, OSAKA 567, JAPAN
关键词
D O I
10.1063/1.105224
中图分类号
O59 [应用物理学];
学科分类号
摘要
Whiskers of the high TcBi2Sr2Ca2Cu3O10 (2223) phase have been prepared by annealing Bi2Sr2CaCu2O8 (2212) whiskers in a Bi2Sr2Ca4Cu6Pb0. 5Ox powder. By the same method, single-crystal sheets of the 2212 phase have also been converted to the 2223 phase, resulting in 2223 sheet crystals as large as approximately 1 mm2. Although the original sample outlines are retained after the phase conversion, the smooth surfaces were lost due to contact with the powder during annealing. A zero-resistance temperature of 107 K and a maximum Jc value of 7.3X10(4) A/cm2 at 77 K in a zero magnetic field were obtained for the 2223 whisker.
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页码:409 / 411
页数:3
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