Metastability of the vortex solid in detwinned YBa2Cu3Oy

被引：4

作者：

Rassau, AP

Gordeev, SN ^{[1
]}

de Groot, PAJ

Gagnon, R

Tailleger, L

机构：

[1] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[3] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

PHYSICA B | 2000年 / 284卷

基金：

英国工程与自然科学研究理事会;

关键词：

flux lines; YBaCuO;

D O I：

10.1016/S0921-4526(99)02377-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Pronounced history dependences have been observed in the transport characteristics of YBa2 CU3Oy Single crystals for temperatures and fields below the thermodynamic melting line, By using an annealing current to control the point at which the vortex system is exposed to the underlying disorder potential, we have been able to probe the competition between pinning, thermal and vortex-vortex interactions across the melting transition. In this way we have shown that in field cooled measurements, the majority of pinning in the vortex solid state arises due to processes occurring in a narrow region just below the melting temperature. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：693 / 694

页数：2