标题： 用常规超导体使近邻磁体化 显示英文标题

标题： Proximitizing altermagnets with conventional superconductors

摘要： 最近的理论工作强调了超导交替磁体的独特性质，包括丰富的拓扑非平凡相以及它们在自旋电子学应用中的潜力。 鉴于尚未发现本征超导交替磁体，我们在此研究了由常规s波超导体的邻近效应诱导超导序的可能性。 通过对称性分析和微观模型，我们发现如果界面处存在弱的Rashba自旋轨道耦合，确实可以在薄的交替磁体薄膜中诱导出有趣的超导相。 令人惊讶的是，所产生的超导体通常是节点型的，具有混合的单重态/三重态序参量，并且对于应用来说，能够产生自旋极化的持续电流。 我们提出了一组具有低晶格失配度的候选异质结构，适合实验探测这些效应。 显示英文摘要

摘要： Recent theoretical work highlighted unique properties of superconducting altermagnets, including the wealth of topologically non-trivial phases as well as their potential uses in spintronic applications. Given that no intrinsically superconducting altermagnets have yet been discovered, we study here the possibility of superconducting order induced by proximity effect from a conventional s-wave superconductor. Through symmetry analysis and microscopic modeling we find that interesting superconducting phases can indeed be proximity-induced in a thin altermagnetic film provided that weak Rashba spin-orbit coupling is present at the interface. Surprisingly, the resulting superconductor is generically nodal with a mixed singlet/triplet order parameter and, importantly for applications, capable of generating spin-polarized persistent current. We propose a set of candidate heterostructures with low lattice mismatch suitable to probe these effects experimentally.