Detailed analysis of magnetic phase diagram in Bi-2223 superconductors

被引：1
|
作者：
Horng, L [1 ]
Chen, K
机构：
[1] Natl Changhua Univ Educ, Dept Phys, Changhua 500, Taiwan
[2] Ind Technol Res Inst, Mat Res Labs, Hsinchu 31015, Taiwan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 209卷 / 1-3期
关键词：
phase diagram; relaxation; superconductor; vortex; melting transition;
D O I：
10.1016/S0304-8853(99)00700-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic properties of a high-quality Bi-2223 superconducting tape have been studied by various magnetization measurements using SQUID magnetometer for understanding the flux dynamics. The remnant flux relaxation was carried out for a very long time period of up to 24 h. The curve of the magnetization with In(t) can be divided into two relaxation rates in different periods of time at higher held. A phase transition boundary of temperature and magnetic field, in which the held has two different relaxation rates, is described in a three- to two-dimensional decoupling transition. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：237 / 239
页数：3
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