论文标题
具有强旋轨耦合的超导体中破裂
Pair-breaking in superconductors with strong spin-orbit coupling
论文作者
论文摘要
我们研究了对称性扰动对多渗透材料超导性的影响，特别关注外部磁场。我们介绍了表征扰动对给定超导状态的成对效应的现场拟合功能。对于即使是奇偶校验超导体，我们都会发现外部磁场的此场拟合功能是一个，这意味着顺磁反应仅由广义有效的$ g $ factor控制。对于奇特的奇偶校验超导体，有效的$ G $ factor和现场拟合功能的相互作用会导致违反直觉结果。我们以$ p $ - 波配对的有效$ j = 3/2 $的电子状态以$ p $ - 波的配对来证明这一点。
We study the influence of symmetry-breaking perturbations on superconductivity in multiorbital materials, with a particular focus on an external magnetic field. We introduce the field-fitness function which characterizes the pair-breaking effects of the perturbation on a given superconducting state. For even parity superconductors we find that this field-fitness function for an external magnetic field is one, implying that the paramagnetic response is controlled only by a generalized effective $g$-factor. For odd parity superconductors, the interplay of the effective $g$-factor and the field-fitness function can lead to counter-intuitive results. We demonstrate this for $p$-wave pairing in the effective $j=3/2$ electronic states of the Luttinger-Kohn model.
