论文标题
磁性天空催化和拓扑超导的机制
Mechanisms for Magnetic Skyrmion Catalysis and Topological Superconductivity
论文作者
论文摘要
我们提出了稳定磁性天际纹理的替代途径，不需要Dzyaloshinkii-Moriya相互作用，磁各向异性或外部Zeeman场。取而代之的是，它仅依赖于系统基态下通量的出现。我们讨论导致非零通量的场景，并识别磁性天际基态在其存在下可访问的情况。此外，当两种类型的磁性天空晶体与配对间隙共存时，我们探索了为拓扑结晶绝缘子的表面状态获得的手性超导体。我们的工作以最小的方式打开了工程拓扑超导性的观点，并有望比当前探索的Skyrmion-Majorana平台发掘可能与静电控制更兼容的功能性拓扑材料和设备。
We propose an alternative route to stabilize magnetic skyrmion textures which does not require Dzyaloshinkii-Moriya interaction, magnetic anisotropy, or an external Zeeman field. Instead, it solely relies on the emergence of flux in the system's ground state. We discuss scenarios that lead to a nonzero flux, and identify the magnetic skyrmion ground states which become accessible in its presence. Moreover, we explore the chiral superconductors obtained for the surface states of a topological crystalline insulator when two types of magnetic skyrmion crystals coexist with a pairing gap. Our work opens perspectives for engineering topological superconductivity in a minimal fashion, and promises to unearth functional topological materials and devices which may be more compatible with electrostatic control than the currently explored skyrmion-Majorana platforms.
