Penetration depth, superconducting transition temperature and quenching of κ-(BEDT-TTF)2Cu[N(CN)2]Br

被引：19
|
作者：
Aburto, A [1 ]
Fruchter, L [1 ]
Pasquier, C [1 ]
机构：
[1] Universite Paris Sud, CNRS, Phys Solides Lab, F-991405 Orsay, France
来源：
PHYSICA C | 1998年 / 303卷 / 3-4期
关键词：
organic superconductor; penetration depth; structural phase transition;
D O I：
10.1016/S0921-4534(98)00246-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetization of a kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br single crystal has been studied as a function of the cooling rate and for different annealing temperatures. It is found that the cooling rate in the temperature region 70-90 K determines both the penetration depth, or the superconducting volume fraction, and the transition temperature. The variation observed for the latter parameter at low concentrations of defects is stronger than expected for a scattering mechanism by non-magnetic defects in a conventional superconductor. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：185 / 190
页数：6
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