Elastic moduli of unconventional superconductor Sr2RuO4

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

doi:10.1016/S0921-4526(01)01229-7

Elastic moduli of unconventional superconductor Sr₂RuO₄

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

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

Ultrasonic measurements have been performed on a single crystal of Sr₂RuO₄ across the superconducting transition temperature T_c (≈1.37 K). We observed discontinuous drop at T_c in a longitudinal elastic modulus C₁₁, and estimated the strain dependence of T_c from the jump by using the Ehrenfest relation. We found that the uniaxial pressure dependence of T_c in Sr₂RuO₄ is negative and positive along the a- and c-axis, respectively, in contrast with the pressure dependence in the isostructural cuprate superconductor La_2-xSr_xCuO₄.

Original language	English (US)
Pages (from-to)	800-802
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01229-7
State	Published - Mar 2002
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: Aug 6 2002 → Aug 6 2002

All Science Journal Classification (ASJC) codes

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

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10.1016/S0921-4526(01)01229-7

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title = "Elastic moduli of unconventional superconductor Sr2RuO4",

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.",

author = "Noriki Okuda and Takashi Suzuki and Zhiqiang Mao and Yoshiteru Maeno and Toshizo Fujita",

note = "Funding Information: This work was partly supported by Grant-in-Aids both for Scientific Research and COE Research (No. 13CE2002) of the Ministry from Education, Culture, Sports, Science and Technology of Japan.; International Conference on Strongly Correlated Electrons ; Conference date: 06-08-2002 Through 06-08-2002",

year = "2002",

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doi = "10.1016/S0921-4526(01)01229-7",

language = "English (US)",

volume = "312-313",

pages = "800--802",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

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TY - JOUR

T1 - Elastic moduli of unconventional superconductor Sr2RuO4

AU - Okuda, Noriki

AU - Suzuki, Takashi

AU - Mao, Zhiqiang

AU - Maeno, Yoshiteru

AU - Fujita, Toshizo

N1 - Funding Information: This work was partly supported by Grant-in-Aids both for Scientific Research and COE Research (No. 13CE2002) of the Ministry from Education, Culture, Sports, Science and Technology of Japan.

PY - 2002/3

Y1 - 2002/3

N2 - 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.

AB - 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.

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U2 - 10.1016/S0921-4526(01)01229-7

DO - 10.1016/S0921-4526(01)01229-7

M3 - Conference article

AN - SCOPUS:0036503520

SN - 0921-4526

VL - 312-313

SP - 800

EP - 802

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - International Conference on Strongly Correlated Electrons

Y2 - 6 August 2002 through 6 August 2002

ER -

Elastic moduli of unconventional superconductor Sr₂RuO₄

Abstract

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