Unconventional enhancement of elastic constants in superconducting La2-xSrxCuO4

Minoru 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 - 1994
Externally publishedYes

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Ultrasonic measurement
Elastic constants
sound waves
Superconducting materials
Superconducting transition temperature
Condensation
elastic properties
condensation
ultrasonics
transition temperature
Acoustic waves
Single crystals
augmentation
single crystals
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Unconventional enhancement of elastic constants in superconducting La2-xSrxCuO4 . / Nohara, Minoru; Suzuki, T.; Maeno, Y.; Fujita, T.; Tanaka, I.; Kojima, H.

In: Physica C: Superconductivity and its Applications, Vol. 235-240, No. PART 2, 1994, p. 1249-1250.

Research output: Contribution to journalArticle

Nohara, Minoru ; Suzuki, T. ; Maeno, Y. ; Fujita, T. ; Tanaka, I. ; Kojima, H. / Unconventional enhancement of elastic constants in superconducting La2-xSrxCuO4 In: Physica C: Superconductivity and its Applications. 1994 ; Vol. 235-240, No. PART 2. pp. 1249-1250.
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