Fermi surface and superconducting properties in Sr2RuO4

被引:6
|
作者
Yoshida, Y [1 ]
Mukai, A
Miyake, K
Watanabe, N
Settaia, R
Onuki, Y
Matsuda, TD
Aoki, Y
Sato, H
Miyamoto, Y
Wada, N
机构
[1] Osaka Univ, Grad Sch Sci, Onuki Lab, Toyonaka, Osaka 5600043, Japan
[2] Tokyo Metropolitan Univ, Dept Phys, Fac Sci, Hachioji, Tokyo 1920364, Japan
[3] Univ Tokyo, Grad Sch Arts & Sci, Inst Phys, Meguro Ku, Tokyo 1538902, Japan
来源
PHYSICA B | 2000年 / 281卷
基金
日本学术振兴会;
关键词
Fermi surface; specific heat; superconductivity; de Haas-van Alphen; Sr2RuO4;
D O I
10.1016/S0921-4526(99)00891-1
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We measured the low-temperature specific heat and de Haas-van Alphen oscillation in Sr2RuO4. The electronic specific heat C-c follows a T-2-dependence below 0.7 K for the sample with a superconducting critical temperature T-c = 1.52 K, suggesting line nodes in the superconducting gap. Three kinds of cylindrical Fermi surfaces were discussed from a view point of their cyclotron effective masses. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:959 / 960
页数:2
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