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The anisotropic low-temperature specific heat of organic superconductor κ-(BEDT-TTF)2CU(NCS)2 in magnetic field

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Abstract

We measured the low-temperature specific heat of the layered organic superconductor κ-(BEDT-TTF)2Cu(NCS)2 for the magnetic field directed along and across the conducting plane and found a difference between the two measurements. Our data indicate the existence of a nodeless superconducting state at zero field and low temperature. The field dependence of the specific heat anisotropy consists of two linear branches with the crossover field equal to the upper critical field perpendicular to the conducting plane.

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Authors and Affiliations

  1. Department of Physics, Kyoto University Kitashirakawa, Sakyo-ku, Kyoto, 606-8502, Japan

    A. E. Kovalev & T. Ishiguro

  2. Japan Science and Technology Corporation, Kawaguchi, 332-0012, Japan

    A. E. Kovalev

  3. Institute of Solid State Physics, Chernogolovka, Moscow oblast, 142432, Russia

    J. Yamada, S. Takasaki & H. Anzai

Authors
  1. A. E. Kovalev
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  2. T. Ishiguro
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  3. J. Yamada
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  4. S. Takasaki
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  5. H. Anzai
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Additional information

From Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 119, No. 6, 2001, pp. 1195–1197.

Original English Text Copyright © 2001 by Kovalev, Ishiguro, Yamada, Takasaki, Anzai.

This article was submitted by the authors in English.

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Kovalev, A.E., Ishiguro, T., Yamada, J. et al. The anisotropic low-temperature specific heat of organic superconductor κ-(BEDT-TTF)2CU(NCS)2 in magnetic field. J. Exp. Theor. Phys. 92, 1035–1037 (2001). https://doi.org/10.1134/1.1385645

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  • DOI: https://doi.org/10.1134/1.1385645

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