摘要
Majorana bound states often occur at the end of a 1D topological superconductor. Validated by a new bulk invariant and an intuitive edge argument, we show the emergence of one Majorana Kramers pair at each corner of a square-shaped 2D topological insulator proximitized by an s±-wave (e.g., Fe-based) superconductor. We obtain a phase diagram that addresses the relaxation of crystal symmetry and edge orientation. We propose two experimental realizations in candidate materials. Our scheme offers a higher-order and higher-temperature route for exploring non-Abelian quasiparticles.
源语言 | 英语 |
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文章编号 | 186801 |
期刊 | Physical Review Letters |
卷 | 121 |
期 | 18 |
DOI | |
出版状态 | 已出版 - 30 10月 2018 |
指纹
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Wang, Q., Liu, C. C., Lu, Y. M., & Zhang, F. (2018). High-Temperature Majorana Corner States. Physical Review Letters, 121(18), 文章 186801. https://doi.org/10.1103/PhysRevLett.121.186801