Electrodynamics of molecular organic superconductors studied μSR

F. L. Pratt, S. J. Blundell, T. Lancaster, S. L. Lee, N. Toyota

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

The response of the superconducting charge carriers to an applied magnetic field has been probed in a number of organic superconductors using μSR. Systematic studies have been made of the in-plane superconducting penetration depth λ in superconductors based on the ET and BETS molecules. These studies have revealed a strong correlation between λ and Tc. This type of correlation was first noted in high Tc cuprates by Uemura et al who found a linear relation between Tc and λ-2". In the case of organic superconductors, however, we find that the overall correlation is better described as Tc ∝ λ-3. Understanding this characteristic trend should provide some important clues about the nature of the superconductivity in the organic superconductors; several possible models are considered here for describing this behaviour. It is concluded that models in which the superconducting carrier concentration is tied to the nominal band filling are inconsistent with the observed scaling behaviour.

Original languageEnglish
Pages (from-to)367-369
Number of pages3
JournalJournal De Physique. IV : JP
Volume114
DOIs
Publication statusPublished - 2004
EventISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets - Port-Bourgenay, France
Duration: 2003 Sep 212003 Sep 26

Keywords

  • London penetration depth
  • Superconducting transition temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Pratt, F. L., Blundell, S. J., Lancaster, T., Lee, S. L., & Toyota, N. (2004). Electrodynamics of molecular organic superconductors studied μSR. Journal De Physique. IV : JP, 114, 367-369. https://doi.org/10.1051/jp4:2004114085