Flux creep and current relaxation in high-Tc superconductors.
Flux creep and current relaxation in high-Tc superconductors.
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DOI：
10.1103/physrevb.43.6263
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发表时间：
1991-03
期刊：
影响因子：
--
通讯作者：
Feigel'man;Geshkenbein;Vinokur
中科院分区：
文献类型：
--
作者：
Feigel'man;Geshkenbein;Vinokur
在集体蠕变理论的框架内研究了高温超导体中电流（磁化）弛豫的长时间渐近。逆归一化弛豫率 {ital S}{sup {minus}1} 线性依赖于 {ital T}ln({ital t}/{tau}{sub 0})。尝试时间 {tau}{sub 0} 被证明比微观时间尺度长得多，并且与大小和 {ital j}{sub {ital c}} 密切相关。
The long-time asymptotics of the current (magnetization) relaxation in high-temperature superconductors is studied within the framework of collective creep theory. The inverse normalized relaxation rate {ital S}{sup {minus}1} depends linearly on {ital T}ln({ital t}/{tau}{sub 0}). The attempt time {tau}{sub 0} is shown to be much longer than a microscopic'' time scale and is strongly size and {ital j}{sub {ital c}} dependent.