The voltage-current relations for MgB2 obtained by reactive liquid infiltration

被引：41

作者：

Giunchi, G

Raineri, S

Wesche, R

Bruzzone, PL

机构：

[1] EDISON Spa, R&D, I-20159 Milan, Italy

[2] CRPP, EPFL, Villigen, Switzerland

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 401卷 / 1-4期

关键词：

bulk MgB2; flux flow; critical current density; activation energy; n-factor;

D O I：

10.1016/j.physc.2003.09.061

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The reactive liquid infiltration (RLI) technique, applied to-the MgB2 material, has allowed us to obtain either bulk or wire samples of good transport properties. The evaluation of the voltage-current characteristics, V-I-n, for typical samples, measured by transport at temperatures between 4.2 and 30 K, is presented. The behaviour of the n exponent is discussed in terms of a simple model and the differences between bulk and wire samples are outlined. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：310 / 315

页数：6

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