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Authors: Dressel, Martin
Klein, Olivier
Grüner, George
Carlson, K. Douglas
Wang, H. Hau
Williams, Jack M.
Title: Electrodynamics of the organic superconductors κ-(BEDT-TTF)2Cu(NCS)2 and κ-(BEDT-TTF)2Cu[N(CN)2]Br
Issue Date: 1994 Zeitschriftenartikel Physical Review B 50 (1994), S. 13603-13615. URL
Abstract: We have performed measurements of the surface impedance in the normal and superconducting states of the title compounds in the millimeter wave-frequency range (1–3 cm-1), and have evaluated the complex conductivity for different crystallographic orientations. Above the transition temperature, the materials behave like metals with a scattering rate of approximately 20 cm-1. In the superconducting state the electrodynamics is in good agreement with calculations based on a BCS ground state: while the penetration depth and the coherence length are anisotropic, the superconducting energy gap shows no indications of line nodes.
Appears in Collections:15 Fakultätsübergreifend / Sonstige Einrichtung

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