THE BI2SR2CA1CU2OX SINGLE-CRYSTALS MAGNETIC-PROPERTIES

被引：1
|
作者：
MOSHCHALKOV, VV [1 ]
ZHUKOV, AA [1 ]
KUZNETSOV, VD [1 ]
METLUSHKO, VV [1 ]
LEONYUK, LI [1 ]
机构：
[1] MOSCOW CHEM ENGN RES INST,MOSCOW 125820,USSR
来源：
PHYSICA B | 1991年 / 169卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(91)90350-N
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A fast nonlogarithmic magnetization relaxation has been observed in Bi2Sr2Ca1Cu2Ox single crystals for the initial time interval. This relaxation is attributed to a viscous flow of Abrikosov vortices for currents axceeding the critical value. This relaxation gives way to a logarithmic relaxation upon the transition to thermally activated flux creep. The field dependence of the logarithmic relaxation rate has been studied. The magnetic moment sharp change for the H perpendicular-to c direction has been observed. This effect is probably due to collective vortex pinning.
引用
收藏
页码：609 / 610
页数：2
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