Unconventional enhancement of elastic constants in superconducting La2-xSrxCuO4

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

doi:10.1016/0921-4534(94)91849-X

Unconventional enhancement of elastic constants in superconducting La_2-xSr_xCuO₄

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

Research output: Contribution to journal › Article

Abstract

Ultrasonic measurements were performed on single crystals of La_2-xSr_xCuO₄ (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 T_c, in contrast with softeniing observed in conventional superconductors. The difference originates from the change in superconducting condensation energy ø under the lattice strain ε_i induced by a sound wave.

Original language	English
Pages (from-to)	1249-1250
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91849-X
Publication status	Published - Dec 1994
Externally published	Yes

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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Nohara, M., Suzuki, T., Maeno, Y., Fujita, T., Tanaka, I., & Kojima, H. (1994). Unconventional enhancement of elastic constants in superconducting La_2-xSr_xCuO₄. Physica C: Superconductivity and its applications, 235-240(PART 2), 1249-1250. https://doi.org/10.1016/0921-4534(94)91849-X

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AU - Tanaka, I.

AU - Kojima, H.

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