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中国科学院大学学报 ›› 2014, Vol. 31 ›› Issue (2): 165-170.DOI: 10.7523/jssn.2095-6134.2014.02.004

• 数学与物理学 • 上一篇    下一篇

非中心对称超导体的序参量宇称混合效应:比热与自旋磁化率

余东洋, 陈崇巨, 金彪   

  1. 中国科学院大学物理学院, 北京 100190
  • 收稿日期:2013-05-23 修回日期:2013-05-27 发布日期:2014-03-15
  • 通讯作者: 金彪,E-mail:biaojin@ucas.ac.cn
  • 基金资助:

    Supported by Scientific Research Fund of UCAS(Y25102BN00)

Parity mixing effects in noncentrosymmetric superconductors:specific heat and spin susceptibility

YU Dongyang, CHEN Chongju, JIN Biao   

  1. School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2013-05-23 Revised:2013-05-27 Published:2014-03-15
  • Supported by:

    Supported by Scientific Research Fund of UCAS(Y25102BN00)

摘要:

在非中心对称超导体中,反对称的自旋-轨道耦合会导致自旋单态配对与三重态配对的混合. 这里主要关注重费米子超导体CePt3Si,研究自旋-轨道耦合以及宇称混合对该系统比热和自旋磁化率的影响,得到了与实验可以比拟的理论结果.

关键词: CePt3Si, 非中心对称超导, 比热, 自旋磁化率, 序参量宇称混合

Abstract:

In materials with no spatial inversion symmetry, the antisymmetric spin-orbit coupling can cause an admixture of the spin-singlet and spin-triplet pairings. We study the influence of the spin-orbit coupling and the degree of parity mixing on the specific heat and spin susceptibility of such superconductors, with a particular emphasis on the heavy fermion superconductor CePt3Si. Results compatible with experimental findings are obtained.

Key words: CePt3Si, noncentrosymmetric superconductor, specific heat, spin susceptibility, parity mixing effects

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