Elastic moduli of unconventional superconductor Sr2RuO4

Noriki Okuda, Takashi Suzuki, Zhiqiang Mao, Yoshiteru Maeno, Toshizo Fujita

Research output: Contribution to journalConference article

6 Scopus citations

Abstract

Ultrasonic measurements have been performed on a single crystal of Sr2RuO4 across the superconducting transition temperature Tc (≈1.37 K). We observed discontinuous drop at Tc in a longitudinal elastic modulus C11, and estimated the strain dependence of Tc from the jump by using the Ehrenfest relation. We found that the uniaxial pressure dependence of Tc in Sr2RuO4 is negative and positive along the a- and c-axis, respectively, in contrast with the pressure dependence in the isostructural cuprate superconductor La2-xSrxCuO4.

Original languageEnglish (US)
Pages (from-to)800-802
Number of pages3
JournalPhysica B: Condensed Matter
Volume312-313
DOIs
StatePublished - Mar 1 2002
EventInternational Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States
Duration: Aug 6 2002Aug 6 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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