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

M. Pinterić, S. Tomić, M. Prester, D. Drobac, O. Milat, K. Maki, D. Schweitzer, I. Heinen, and W. Strunz
Phys. Rev. B 61, 7033 – Published 1 March 2000
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Abstract

ac susceptibility measurements are reported for single crystals of the layered organic superconductor κ(BEDTTTF)2Cu[N(CN)2]Br. The value of the out-of-plane penetration depth λb(0) was found to be 133 μm, consistent with earlier results. The temperature dependence of the in-plane superfluid density, with the value of in-plane component λac(0) of the order of 1 μm, is strongly linear in T, whereas the out-of-plane superfluid density varies as T2 at low temperatures. The observed behavior is fully consistent with the one expected for d-wave superconductivity.

  • Received 18 November 1998

DOI:https://doi.org/10.1103/PhysRevB.61.7033

©2000 American Physical Society

Authors & Affiliations

M. Pinterić

  • Institute of Physics, P.O. Box 304, HR-10000 Zagreb, Croatia
  • Faculty of Civil Engineering, University of Maribor, SLO-2000 Maribor, Slovenia

S. Tomić, M. Prester, D. Drobac, and O. Milat

  • Institute of Physics, P.O. Box 304, HR-10000 Zagreb, Croatia

K. Maki

  • Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484

D. Schweitzer

  • 3. Physikalisches Institut, Universität Stuttgart, D-70550 Stuttgart, Germany

I. Heinen and W. Strunz

  • Anorganisch-chemiches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany

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Vol. 61, Iss. 10 — 1 March 2000

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