C-axis negative magnetoresistance and upper critical field of Bi2Sr2CaCu2O8

被引:22
作者
Zavaritsky, VN
Springford, M
Alexandrov, AS
机构
[1] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
[2] PL Kapitza Phys Problems Inst, Moscow 117334, Russia
[3] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
来源
EUROPHYSICS LETTERS | 2000年 / 51卷 / 03期
关键词
D O I
10.1209/epl/i2000-00357-4
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The out-of-plane resistance and the resistive upper critical field of BSCCO-2212 single crystals with T-c0 similar or equal to 91-93 K have been measured in magnetic fields up to 50 T over a wide temperature range. The results are characterised by a positive linear magnetoresistance in the superconducting state and negative linear magnetoresistance in the normal state. The zero-field normal-state c-axis resistance, the negative linear normal-state magnetoresistance, and the divergent upper critical field H-c2(T) are explained in the framework of the bipolaron theory of superconductivity.
引用
收藏
页码:334 / 340
页数:7
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