Anisotropic Josephson-vortex dynamics in layered organic superconductors

S. Yasuzuka, S. Uji, H. Satsukawa, M. Kimata, T. Terashima, H. Koga, Y. Yamamura, K. Saito, H. Akutsu, J. Yamada

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

To study the anisotropic Josephson-vortex dynamics in the d-wave superconductors, the interplane resistance has been measured on layered organic superconductors κ-(ET)2Cu(NCS)2 and β-(BDA-TTP)2SbF6 under magnetic fields precisely parallel to the conducting planes. For κ-(ET)2Cu(NCS) 2, in-plane angular dependence of the Josephson-vortex flow resistance is mainly described by the fourfold symmetry and dip structures appear when the magnetic field is applied parallel to the b- and c-axes. The obtained results have a relation to the d-wave superconducting gap symmetry. However, the absence of in-plane fourfold anisotropy was found for β-(BDA-TTP)2SbF6. The different anisotropic behavior is discussed in terms of the interlayer coupling strength.

Original languageEnglish
Pages (from-to)S288-S290
JournalPhysica B: Condensed Matter
Volume405
Issue number11 SUPPL.
DOIs
Publication statusPublished - 2010 Jun 1
Externally publishedYes

Keywords

  • Anisotropic gap
  • Josephson-vortex
  • Organic conductor
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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