Ultrasonic study of the κ-(BEDT-TTF)2Cu[N(CN)2]Br organic superconductor

被引：5
|
作者：
Frikach, K [1 ]
Fertey, P [1 ]
Poirier, M [1 ]
Truong, K [1 ]
机构：
[1] Univ Sherbrooke, Dept Phys, Ctr Rech Phys Solide, Sherbrooke, PQ J1K 2R1, Canada
来源：
SYNTHETIC METALS | 1999年 / 103卷 / 1-3期
关键词：
organic superconductors; superconducting phase transitions;
D O I：
10.1016/S0379-6779(98)00433-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the temperature profile of the velocity of ultrasonic waves propagating perpendicularly to the organic layers in the superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br (T-c, = 11.7K). A softening anomaly is observed at the superconducting transition temperature. This anomaly is discussed accordingly to the thermodynamical Ehrenfest relation and the existence of superconducting fluctuations.
引用
收藏
页码：2081 / 2082
页数：2
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