Structural disorder and its effect on the superconducting transition temperature in the organic superconductor

X. Su, F. Zuo, J. Schlueter, M. Kelly, Jack M. Williams

Research output: Contribution to journalArticle

78 Scopus citations

Abstract

In this paper, we report direct evidence of a structural transition in the organic superconductor (Formula presented) near 80 K and the effect of disorder on the superconducting transition temperature. By cooling the sample from above 80 K, the interlayer magnetoresistance displays a bumplike feature, which increases sharply with increasing cooling rate. The rapidly cooled sample has a much larger resistivity and a lower transition temperature, which decreases linearly with increasing resistivity near the transition temperature. We propose that rapid cooling quenches the sample into a disordered state. Localized moments in the disordered state reduce the superconducting transition temperature.

Original languageEnglish (US)
Pages (from-to)R14056-R14059
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number22
DOIs
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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