TEMPERATURE-DEPENDENCE OF THE HALL-EFFECT IN HIGH-TEMPERATURE SUPERCONDUCTORS ABOVE AND BELOW T(C)

被引:4
|
作者
GINSBERG, DM [1 ]
DUDEY, RL [1 ]
机构
[1] UNIV ILLINOIS,RES RES LAB,URBANA,IL 61801
来源
PHYSICA A | 1993年 / 200卷 / 1-4期
基金
美国国家科学基金会;
关键词
D O I
10.1016/0378-4371(93)90534-B
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We review the sign reversal of the Hall angle theta(H) seen in many high-temperature superconductors in small magnetic fields. Preliminary data are presented for a tetragonal (and therefore untwinned) single crystal of YBa2Cu3O7-delta with 4% of the Cu atoms replaced by Co; the sign reversal of theta(H) is not seen. For an untwinned single-crystal sample of the undoped compound, the measured constant-pressure Hall-effect data above T(c) are converted to constant-volume data, so direct comparison can be made with theory.
引用
收藏
页码:351 / 356
页数:6
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