Resistive behavior and magnetic phase diagram of MgB2 single crystals

被引:18
作者
Eltsev, Y [1 ]
机构
[1] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 385卷 / 1-2期
关键词
resistivity; single crystal; upper critical field; anisotropy;
D O I
10.1016/S0921-4534(02)02312-2
中图分类号
O59 [应用物理学];
学科分类号
摘要
I report on the resistive behavior below T-c and magnetic phase diagram of MgB2 single crystals. Strong current induced resistive transition broadening has been found at magnetic fields above 1.5-2 T in Hparallel toc-axis field orientation. I discuss this behavior in relation with possible effects of the vortex-liquid state, surface superconductivity, excess conductivity as well as double-energy superconducting-gap structure in MgB2 (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:162 / 168
页数:7
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