Effect of Impurities on the Specific Heat of the Spin-Triplet Superconductor Sr2RuO4

Shuji NishiZaki, Yoshiteru Maeno, Zhiqiang Mao

Research output: Contribution to journalArticle

86 Scopus citations

Abstract

We have investigated the specific heat of single crystals of the spin-triplet superconductor Sr2RuO4 (Tc0 = 1.50 K) with various Tc. We focus on the Tc dependence of the specific heat jump at Tc and of the residual specific heat coefficient. The observed behavior is not quantitatively consistent with a model with a simple isotropic gap. We argue that inclusions of both the in-plane anisotropy of the gap and the dependence of the gap on different Fermi-surface sheets are needed to resolve this discrepancy.

Original languageEnglish (US)
Pages (from-to)1581-1585
Number of pages5
JournalJournal of Low Temperature Physics
Volume117
Issue number5-6
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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