The “Paramagnetic” Meissner Effect in Superconductors

被引：0
|
作者：
Yu. V. Obukhov
机构：
[1] FLNP,
[2] Joint Institute for Nuclear Research,undefined
来源：
Journal of Superconductivity | 1998年 / 11卷
关键词：
Paramagnetic Meissner effect; π-junction; magnetic moment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
There are a number of publications concerning the observation of a paramagnetic signal in HTSC ceramic samples during field-cooling procedures. Some authors assume that this signal is connected with spontaneous currents and discuss the possibility of the existence of π-junctions in Josephson media. In this work, it is shown that the paramagnetic signal could appear in the case of capture and compression of the magnetic flux in a sample during field-cooling procedures. The results of numerical calculation of the magnetic moment for different configurations of the sample and flux compression are presented. The unusual behavior of longtime relaxation of the magnetic moment in experiments on capture of magnetic flux is discussed.
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页码：733 / 736
页数：3
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