80 K anomaly and its effect on the superconducting and magnetic transition in deuterated

X. Su, F. Zuo, J. Schlueter, A. Kini, Jack M. Williams

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

In this paper, we report careful transport and magnetic measurements on single crystals of deuterated (Formula presented) By cooling the sample at different rates, it is found that cooling through 80 K has a dramatic effect on the normal state metal-insulator transition and the superconducting transition temperatures. In-plane resistivity depends strongly on the cooling rate for temperatures below 80 K, above which all resistivity curves cooled at different rates converge. By comparing it with the nondeuterated salt and the quasi-1D Bechgaard salt, we speculate that 80 K corresponds to a structural phase transition in the anion chain. Fast cooling through 80 K will freeze the high temperature magnetic phase to low temperatures and the presence of local magnetic moments suppresses the superconducting (Formula presented).

Original languageEnglish (US)
Pages (from-to)R2944-R2947
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number6
DOIs
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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