Unconventional enhancement of elastic constants in superconducting La2-xSrxCuO4

M. Nohara, T. Suzuki, Y. Maeno, T. Fujita, I. Tanaka, H. Kojima

Research output: Contribution to journalArticle

Abstract

Ultrasonic measurements were performed on single crystals of La2-xSrxCuO4 (LSCO) with x = 0.09, 0.14 and 0.19. We found that the elastic constants of LSCO increase well below the superconducting transition temperature Tc, in contrast with softeniing observed in conventional superconductors. The difference originates from the change in superconducting condensation energy ø under the lattice strain εi induced by a sound wave.

Original languageEnglish
Pages (from-to)1249-1250
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 2
DOIs
Publication statusPublished - Dec 1994
Externally publishedYes

ASJC Scopus subject areas

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

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