期刊
PHYSICAL REVIEW B
卷 102, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.102.245431
关键词
-
资金
- Swiss National Science Foundation
- NCCR QSIT
- European Union's Horizon 2020 research and innovation program (ERC Starting Grant) [757725]
We consider a two-dimensional electron gas (2DEG) with Rashba spin-orbit interaction (SOT) partially covered by an s-wave superconductor, where the uncovered region remains normal but is exposed to a perpendicular Zeeman field. We find analytically and numerically Andreev bound states (ABSs) formed in the normal region and show that, by tuning the SOI to certain values, one can reach a regime where the energy of the lowest ABS becomes pinned close to zero as a function of Zeeman field. In addition, we also consider a configuration with a superconducting vortex and find again ABSs pinned close to zero energy in the topologically trivial phase for a wide range of parameters. Thus, ABSs and Majorana bound states show similar behavior in such structures.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据