Magnetically textured superconductivity in elemental rhenium
Magnetically textured superconductivity in elemental rhenium
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DOI：
10.1103/physrevb.106.l020501
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发表时间：
2020-05
影响因子：
3.7
通讯作者：
G. Csire;J. Annett;J. Quintanilla;B. Ujfalussy
中科院分区：
文献类型：
--
作者：
G. Csire;J. Annett;J. Quintanilla;B. Ujfalussy
最近的$\mu$SR测量显示了显着的签名的自发磁性共存的超导性元素的超导性。在这里，我们提供了一个定量的理论，揭示了超导不稳定性的性质，结合电子结构的每一个细节与自旋轨道耦合和多轨道物理。研究表明，传统的s波超导与强自旋轨道耦合相结合，诱导了偶宇称奇轨道自旋三重态库珀对，当存在螺旋轴时，诱导的等自旋三重态组分之间的库珀对迁移导致了奇异磁态.
Recent $\mu$SR measurements revealed remarkable signatures of spontaneous magnetism coexisting with superconductivity in elemental rhenium. Here we provide a quantitative theory that uncovers the nature of the superconducting instability by incorporating every details of the electronic structure together with spin-orbit coupling and multi-orbital physics. We show that conventional $s$-wave superconductivity combined with strong spin-orbit coupling is inducing even-parity odd-orbital spin triplet Cooper pairs, and in presence of a screw axis Cooper pairs' migration between the induced equal-spin triplet component leads to an exotic magnetic state.