Temporal processes in a polymeric anion-based organic superconductor

被引：43
|
作者：
Stalcup, TF [1 ]
Brooks, JS
Haddon, RC
机构：
[1] Florida State Univ, Dept Phys, Tallahassee, FL 32310 USA
[2] Florida State Univ, NHMFL, Tallahassee, FL 32310 USA
[3] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.60.9309
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the time-dependent resistivity of kappa- (BEDT-TTF)(2)Cu[N(CN)(2)]Br, a high transition temperature organic superconductor (T-c=11.6 K), in the temperature range 60-85 K. Based on these measurements, we identify an important parameter (in terms of time-dependent changes in resistivity) that is directly correlated to the superconducting transition temperature and also to the amplitude of the quantum oscillations associated with the Shubnikov-de Haas effect. This finding sheds new light on mechanisms involving disorder in this material. We describe a two-level model that accounts for the details of the time-dependent changes in resistivity.
引用
收藏
页码：9309 / 9312
页数：4
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