Nonstoichiometry, defects and transport properties in MgB2

被引：22

作者：

Xue, YY

Meng, RL

Lorenz, B

Meen, JK

Sun, YY

Chu, CW ^{[1
]}

机构：

[1] Univ Houston, Dept Phys, Houston, TX 77204 USA

[2] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

[3] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 377卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0921-4534(02)01163-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The X-ray diffraction patterns of ceramic samples with different residual resistivity ratios show that the transport property of MgB2 is correlated with its microstrain. Direct wavelength-dispersive-spectrum measurement further suggests that the microstrain might be dominated by oxygen-related defects, although a correlation between the composition Mg:B and the lattice parameters a (c) has also been observed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：7 / 14

页数：8

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