DETERMINATION OF SHIELDING CURRENT-DENSITY IN BULK CYLINDRICAL SAMPLES OF HIGH-TC SUPERCONDUCTORS FROM AC SUSCEPTIBILITY MEASUREMENTS

被引：99
|
作者：
GOMORY, F
LOBOTKA, P
机构：
[1] Slovak Acad of Sciences, Bratislava, Czech, Slovak Acad of Sciences, Bratislava, Czech
来源：
SOLID STATE COMMUNICATIONS | 1988年 / 66卷 / 06期
关键词：
ELECTRIC MEASUREMENTS - YTTRIUM COMPOUNDS - Physical Properties;
D O I：
10.1016/0038-1098(88)90225-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Analyses of temperature dependences of ac susceptibility measured on bulk cylindrical samples of high-T//c superconductors have made it possible to introduce a shielding current density model. Following this model, it is possible to determine J//s(T) from measurements at various ac field amplitudes. Data obtained for YBa//2Cu//3O//x prepared from oxide powders as well as for YBaSrCu//3O//7 prepared via sol-gel technique are reported.
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页码：645 / 649
页数：5
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