Thermally activated flux motion under a distribution of activation energies in high Tc superconductors

被引：7

作者：

Pande, CS ^{[1
]}

Masumura, RA ^{[1
]}

机构：

[1] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA

来源：

PHYSICA C | 1999年 / 314卷 / 1-2期

关键词：

flux motion; barrier distribution; magnetization decay;

D O I：

10.1016/S0921-4534(99)00031-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Within a thermally activated flux motion model and assuming a distribution of barriers, we derive exact closed form expressions for various parameters for magnetic relaxation in high T-c superconducting material. In particular, we introduce a new parameter S* proportional to S, the normalized logarithmic decay of magnetization, and show that S* is a monotonically increasing function of temperature. Published by Elsevier Science B.V. All rights reserved.

引用

页码：147 / 153

页数：7

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