Near constancy of the pressure dependence of across families of organic and fullerene superconductors

Vincent H. Crespi, Marvin L. Cohen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Pressure strongly depresses the superconducting transition temperature (Formula presented) of both the doped fullerenes and the β-ET[(BEDT-TTF(Formula presented), (BEDT-TTF)=bis(ethylenedithio)tetrathiofulvalene)] organic superconductors. An outstanding puzzle in these materials is the weak variation (Formula presented)/dP across families of compounds with large variations in (Formula presented). This property has been used to argue against phonon-induced pairing. However, closer examination of the volume dependence of (Formula presented) reveals that the weak variation of (Formula presented)/dP is consistent with moderate (but not weak) electron-phonon coupling.

Original languageEnglish (US)
Pages (from-to)56-58
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number1
DOIs
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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