论文标题
具有磁性杂质的奇数雄性超导体中的表面性手性超导性
Surface chiral superconductivity in odd-parity nematic superconductors with magnetic impurities
论文作者
论文摘要
我们研究了在表面磁杂质的情况下掺杂的拓扑绝缘体中的奇数nematic超导性。特殊的表面子量表频谱以主要的扁平带，节点锥和母体拓扑绝缘子的表面状态为特征，从而导致表面杂质之间的整体铁磁rkky相互作用。杂质和先发制人的手性秩序参数之间的额外耦合促进了系统表面的表面时间反转对称性解决方案。我们讨论了相关的情况，并建议通过正确选择具有高度各向异性交换耦合的磁性磁化体来设计设计表面手性超导性。
We study odd-parity nematic superconductivity in doped topological insulators in presence of surface magnetic impurities. The peculiar surface subgap spectrum, characterized by a Majorana flatband, nodal cones and the surface states of the parent topological insulator, gives rise to an overall ferromagnetic RKKY interactions between the surface impurities. An additional coupling between the impurities and a preemptive chiral order parameter promote a surface time-reversal symmetry breaking solution at the surface of the system. We discuss the relevant scenarios and suggest to engineer surface chiral superconductivity by properly choosing magnetic adatoms with highly anisotropic exchange coupling.
