μSR studies of the flux vortex phases in a BEDT-TTF superconductor

F. L. Pratt, S. L. Lee, C. M. Aegerter, C. Ager, S. H. Lloyd, S. J. Blundell, F. Y. Ogrin, E. M. Forgan, H. Keller, W. Hayes, T. Sasaki, N. Toyota, S. Endo

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

μSR has been used to probe the structure and stability of the flux vortex array in the organic superconductor κ-(BEDT-TTF)2Cu(SCN)2. At temperatures below 5 K and fields below 5 mT the internal field distribution is found to closely match that expected for a three dimensional (3D) Abrikosov flux line lattice (FLL). Careful studies in this 3D-FLL regime have enabled an improved measurement of the temperature dependence of the superconducting penetration depth to be made. A linear term is found in the temperature dependence of the penetration depth, suggesting the presence of line nodes in the gap parameter and d-wave pairing.

Original languageEnglish
Pages (from-to)1015-1016
Number of pages2
JournalSynthetic Metals
Volume120
Issue number1-3
DOIs
Publication statusPublished - 2001 Mar 15

Keywords

  • Organic superconductors
  • Superconducting phase transitions
  • μSR

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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