Fermi-Liquid Behavior and BCS s-Wave Pairing of K3C60 Observed by 13C-NMR

Susumu Sasaki, Azusa Matsuda, C. W. Chu

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

This Letter reports on NMR studies of 13C in K3 C60 above and below Tc with an applied field of 2.93 T. It is found that non-single-exponential recovery data can be fitted by two components and normalized to an identical shape. With T1 defined in this way, Fermi-liquid behavior is identified above Tc, and a broadened Hebel-Slichter peak observed below Tc is well explained by the Eliashberg theory with 2Δ(0) /kBTc=4.31. The possibility of strong electron correlation and the origin of the multi-exponential recovery are discussed.

Original languageEnglish
Pages (from-to)1670-1673
Number of pages4
Journaljournal of the physical society of japan
Volume63
Issue number5
DOIs
Publication statusPublished - 1994
Externally publishedYes

Keywords

  • BCS s-wave
  • C-NMR
  • Eliashberg theory
  • Fermi liquid
  • Hebel-Slichter peak
  • KC
  • constant-T T
  • strong electron correlation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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