Probing the order parameter of the layered organic superconductor κ-(BEDT-TTF)2 Cu[N(CN)2]Br by ac susceptibility measurements

被引：53
作者：
Pinteric, M
Tomic, S
Prester, M
Drobac, D
Milat, O
Maki, K
Schweitzer, D
Heinen, I
Strunz, W
机构：
[1] Univ Zagreb, Inst Phys, HR-10000 Zagreb, Croatia
[2] Univ Maribor, Fac Civil Engn, SLO-2000 Maribor, Slovenia
[3] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA
[4] Univ Stuttgart, Inst Phys, D-70550 Stuttgart, Germany
[5] Heidelberg Univ, Inst Anorgan Chem, D-69120 Heidelberg, Germany
来源：
PHYSICAL REVIEW B | 2000年 / 61卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.61.7033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ac susceptibility measurements are reported for single crystals of the layered organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br. The value of the out-of-plane penetration depth lambda(b)(0) was found to be 133 mu m, consistent with earlier results. The temperature dependence of the in-plane superfluid density, with the value of in-plane component lambda(ac)(O) of the order of 1 mu m, is strongly linear in T, whereas the out-of-plane superfluid density varies as T-2 at low temperatures. The observed behavior is fully consistent with the one expected for d-wave superconductivity.
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页码：7033 / 7038
页数：6
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