CRITICAL FIELDS AND FLUX PINNING IN SINGLE-CRYSTAL BA1-XKXBIO3

被引：16

作者：

SEIDLER, GT

ROSENBAUM, TF

HAN, PD

PAYNE, DA

VEAL, BW

机构：

[1] UNIV ILLINOIS, DEPT MAT SCI & ENGN, URBANA, IL 61801 USA

[2] ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA

[3] NATL SCI FDN, SCI & TECHNOL CTR SUPERCOND, WASHINGTON, DC 20550 USA

[4] UNIV CHICAGO, DEPT PHYS, CHICAGO, IL 60637 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1992年 / 195卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-4534(92)90363-H

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report DC magnetization measurements of high quality single crystals of superconducting Ba0.63K0.37BiO3 with T(c) = 29 K, yielding values for the upper and lower critical fields, the low field critical current, the magnetization relaxation rate, and the activation energy for flux motion. We contrast the magnetization relaxation results for isotropic Ba0.63K0.37BiO3 with those obtained on highly anisotropic oxygen deficient single crystals of YBa2Cu3O7-delta with delta = 0.58 and a comparable T(c)= 35 K.

引用

页码：373 / 378

页数：6

共 24 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].