Inhomogeneous interlayer Josephson coupling in κ-(BEDT-TTF)2Cu(NCS)2

被引：14

作者：

Kirtley, JR

Moler, KA

Schlueter, JA

Williams, JM

机构：

[1] IBM Corp, Res, Yorktown Heights, NY 10598 USA

[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[3] Argonne Natl Lab, Div Chem & Mat Sci, Argonne, IL 60439 USA

[4] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 08期

关键词：

D O I：

10.1088/0953-8984/11/8/013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In a layered superconductor, the interlayer coupling strength determines the spatial variation of the magnetic fields parallel to the layers. Scanning SQUID microscope images of an edge of a single crystal of the layered organic superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2) show regions of inhomogeneous coupling as well as trapped interlayer Josephson vortices. Quantitative modelling of individual isolated vortices indicates an interlayer penetration depth lambda(perpendicular to) similar to 60 mu m. Previous bulk measurements that indicated a weaker interlayer coupling may have been dominated by inhomogeneities.

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页码：2007 / 2016

页数：10

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