About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Journal of Physics Condensed Matter
Paper
Inhomogeneous interlayer Josephson coupling in κ-(BEDT-TTF)2Cu(NCS)2
Abstract
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 κ-(BEDT-TTF)2Cu(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 λ⊥ é ∼ 60 μm. Previous bulk measurements that indicated a weaker interlayer coupling may have been dominated by inhomogeneities. © 1999 IOP Publishing Ltd.