论文标题

频率依赖性跨曲线解决方案,用于超导肌酸裁缝

Frequency-dependent Inter-pseudospin Solutions to Superconducting Strontium Ruthenate

论文作者

Gingras, Olivier, Allaglo, Nikita, Nourafkan, Reza, Côté, Michel, Tremblay, André-Marie S.

论文摘要

Sr $ _2 $ ruo $ _4 $的超导顺序参数的持久难题,用于理论研究,包括很少考虑的效果。在这里,我们包括对电子结构的自旋轨道耦合效应,然后以伪蛋白的基础求解线性化的EliAshberg方程,包括自旋和电荷波动诱导频率依赖性的超导顺序参数的可能性。我们发现,旋转轨道耦合在轨道,旋转和频率空间中均匀地和奇特的贡献,并且引导次数间的smemermetries,b $ _ {1g}^+$和$ _ {2G}^ - $,分别具有内部 - 轨道内部成分均匀且均匀。这些之间的意外变性可以解决明显的实验矛盾。

The lasting puzzle of the superconducting order parameter of Sr$_2$RuO$_4$ calls for theoretical studies that include seldom-considered effects. Here we include spin-orbit coupling effects on the electronic structure and then solve the linearized Eliashberg equation in a pseudospin basis, including the possibility that spin and charge fluctuations induce frequency-dependent superconducting order parameters. We find that spin-orbit coupling mixes even and odd contributions in orbital, spin and frequency spaces and that leading inter-pseudospin symmetries, B$_{1g}^+$ and A$_{2g}^-$, have intra-orbital components respectively even and odd in Matsubara frequency. An accidental degeneracy between these could resolve apparent experimental contradictions.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源