Nuclear spin-lattice relaxation rate in noncentrosymmetric superconductors Y2C3

被引：0

作者：

Chen, Chongju ^{[1
]}

Jin, Biao ^{[2
]}

机构：

[1] Wenzhou Univ, Coll Math Phys & Elect Informat Engn, Wenzhou 325035, Zhejiang, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2020年 / 572卷

基金：

中国国家自然科学基金;

关键词：

Pairing symmetries; Theories and models of superconducting state; Nuclear spin-lattice relaxation rate; FIELD; STATE;

D O I：

10.1016/j.physc.2020.1353622

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For a noncentrosymmetric superconductor such as Y2C3, we consider a parity-mixing model composed of spin-singlet s-wave and spin-triplet f-wave pairing components. The d-vector inf-wave state is chosen to be parallel to the Dresselhaus asymmetric spin-orbit coupling vector. It is found that, the quasiparticle excitation spectrum exhibits distinct nodal structure as a consequence of parity-mixing. We demonstrate particularly that such a model can qualitatively account for the existing experimental results of the temperature dependence of the nuclear spin-lattice relaxation rate T-1(-1) in Y2C3.

引用

页数：4

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