Second magnetization peak at low fields due to thermomagnetic flux-jump instability

被引：31

作者：

Kopelevich, Y ^{[1
]}

Esquinazi, P ^{[1
]}

机构：

[1] Univ Leipzig, Dept Supercond & Magnetism, D-04103 Leipzig, Germany

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1998年 / 113卷 / 1-2期

关键词：

D O I：

10.1023/A:1022550402807

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetization measurements performed on a Nb thin film have revealed the existence of a "second magnetization peak" (SMP) well below the upper critical field boundary H-c2(T). The results of this work provide clear evidence that the SMP originates from a thermomagnetic flux-jump instability. The similarity of the magnetization loops measured in Bi2Sr2CaCu2O8 high-T-c superconducting crystals to those in Nb, as well as their dependence on the crystal size and field step indicate that a common mechanism is responsible for the SMP in these superconductors.

引用

页码：1 / 9

页数：9

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KOPELEVICH Y, IN PRESS

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