应变交变磁体-超导体异质结构中的拓扑超导相
Topological Superconducting Phases in a Strained Altermagnet-Superconductor Heterostructure
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中文总结 AI 辅助
本文研究二维s波超导体与d波交变磁体异质结构中的拓扑超导相，发现应变引起的晶格畸变可在广泛参数区域实现拓扑超导，为实验实现提供新途径。
中文摘要 AI 辅助
我们研究了一个由二维s波超导体和具有Rashba自旋轨道耦合的d波交变磁体组成的异质结构中的拓扑超导性。特别地，我们研究了应变和跳跃各向异性对拓扑超导相的影响。通过计算陈数，我们获得了作为化学势和磁邻近效应感生的有效磁场强度函数的拓扑相图。我们发现，应变引起的晶格畸变允许拓扑超导相在广泛的参数区域内出现。我们的研究结果表明，降低对称性的应变可以作为在交变磁体-超导体异质结构中实现拓扑超导性的一种途径。
英文摘要
We investigate topological superconductivity in a heterostructure consisting of a two-dimensional $s$-wave superconductor and a $d$-wave altermagnet with Rashba spin-orbit coupling. In particular, we study the effects of strain and hopping anisotropy on the topological superconducting phases. By calculating the Chern number, we obtain topological phase diagrams as functions of the chemical potential and the strength of the effective magnetic field induced by the magnetic proximity effect. We find that strain-induced lattice distortion allows topological superconducting phases to emerge over a broad parameter region. Our findings suggest that strain that lowers symmetry can serve as a route to realizing topological superconductivity in altermagnet-superconductor heterostructures.
发表机构
- Department of Applied Physics, Tokyo University of Science（东京理科大学应用物理系）
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