Transverse elastic moduli in spin-triplet superconductor Sr2RuO4

被引：5

作者：

Okuda, N ^{[1
]}

Suzuki, T

Mao, ZQ

Maeno, Y

Fujita, T

机构：

[1] Hiroshima Univ, ADSM, Dept Quantum Matter, Higashihiroshima 7398530, Japan

[2] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[3] Kyoto Univ, Innovat Ctr, Kyoto 6068501, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 388卷

关键词：

Sr2RuO4; ultrasound; transverse elastic moduli; two-dimensional order parameter; broken time-reversal symmetry;

D O I：

10.1016/S0921-4534(02)02519-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Transverse ultrasonic measurements have been performed on a single crystal of Sr2RuO4 across the superconducting transition temperature T-c (similar to1.40 K). We found an indication of a jump at T-c in transverse elastic modulus C-66, which is attributable to the coupling between strains and two-dimensional order parameters (OP) with broken time-reversal symmetry. This leads to additional evidence for the spin-triplet superconductivity with a two-dimensional OP. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：497 / 498

页数：2

共 12 条

[1] Thermal expansion and compressibility of Sr2RuO4 [J].

Chmaissem, O ;

Jorgensen, JD ;

Shaked, H ;

Ikeda, S ;

Maeno, Y .

PHYSICAL REVIEW B, 1998, 57 (09) :5067-5070

[2] Spin-triplet superconductivity in Sr2RuO4 identified by 17O Knight shift [J].

Ishida, K ;

Mukuda, H ;

Kitaoka, Y ;

Asayama, K ;

Mao, ZQ ;

Mori, Y ;

Maeno, Y .

NATURE, 1998, 396 (6712) :658-660

[3] Time-reversal symmetry breaking superconductivity in Sr2RuO4 [J].

Luke, GM ;

Fudamoto, Y ;

Kojima, KM ;

Larkin, MI ;

Merrin, J ;

Nachumi, B ;

Uemura, YJ ;

Maeno, Y ;

Mao, ZQ ;

Mori, Y ;

Nakamura, H ;

Sigrist, M .

NATURE, 1998, 394 (6693) :558-561

[4] Ultrasound attenuation in Sr2RuO4:: An angle-resolved study of the superconducting gap function [J].

Lupien, C ;

MacFarlane, WA ;

Proust, C ;

Taillefer, L ;

Mao, ZQ ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2001, 86 (26) :5986-5989

[5] Experimental evidence for spin-triplet superconductivity in Sr2RuO4 [J].

Maeno, Y ;

NishiZaki, S ;

Mao, ZQ .

JOURNAL OF SUPERCONDUCTIVITY, 1999, 12 (04) :535-541

[6] SUPERCONDUCTIVITY IN A LAYERED PEROVSKITE WITHOUT COPPER [J].

MAENO, Y ;

HASHIMOTO, H ;

YOSHIDA, K ;

NISHIZAKI, S ;

FUJITA, T ;

BEDNORZ, JG ;

LICHTENBERG, F .

NATURE, 1994, 372 (6506) :532-534

[7] Crystal growth of Sr2RuO4 [J].

Mao, ZQ ;

Maeno, Y ;

Fukazawa, H .

MATERIALS RESEARCH BULLETIN, 2000, 35 (11) :1813-1824

[8] Unconventional strain dependence of superconductivity in spin-triplet superconductor Sr2RuO4 [J].

Okuda, N ;

Suzuki, T ;

Mao, ZQ ;

Maeno, Y ;

Fujita, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (04) :1134-1139

[9] STUDY OF STRUCTURAL PHASE-TRANSITIONS BY MEANS OF ULTRASONIC EXPERIMENTS [J].

REHWALD, W .

ADVANCES IN PHYSICS, 1973, 22 (06) :721-755

[10] Phenomenology of the superconducting state in Sr2RuO4 [J].

Sigrist, M ;

Agterberg, D ;

Furusaki, A ;

Honerkamp, C ;

Ng, KK ;

Rice, TM ;

Zhitomirsky, ME .

PHYSICA C, 1999, 317 :134-141

← 1 2 →