Pressure dependence of superconductivity in single-phase K3C60

G. Sparn, J. D. Thompson, S. M. Huang, R. B. Kaner, F. Diederich, R. L. Whetten, G. Grüner, K. Holczer

Research output: Contribution to journalArticlepeer-review

169 Scopus citations

Abstract

The superconducting compound K3C60 (with transition temperature Tc = 19.3 kelvin at ambient pressure), formed as a single phase by reaction of alkali vapor with solids of the icosahedral C60 molecule (buckminsterfullerene), shows a very large decrease of Tc with increasing pressure. Susceptibility measurements on sintered pellets showing bulk superconductivity are reported up to 21 kilobars of pressure, where Tc is already less than 8 kelvin. The results are consistent with a piling up of the density of states at the Fermi level.

Original languageEnglish (US)
Pages (from-to)1829-1831
Number of pages3
JournalScience
Volume252
Issue number5014
DOIs
StatePublished - Jun 28 1991
Externally publishedYes

ASJC Scopus subject areas

  • General

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