In this study, we investigate the transport properties of chiral Andreev edge states (CAES) in a quantum Hall-superconductor junction. We find that these properties strongly depend on the contact geometry and filling factor, and local barriers need to be added at the corners of the junction to reproduce such properties when using one-dimensional effective models.
We consider a quantum Hall (QH) region in contact with a superconductor (SC), i.e., a QH-SC junction. Due to successive Andreev reflections, the QH-SC interface hosts hybridized electron and hole edge states called chiral Andreev edge states (CAES). We theoretically study the transport properties of these CAES by using a microscopic, tight-binding model. We find that the transport properties strongly depend on the contact geometry and the value of the filling factor. We notice that it is necessary to add local barriers at the corners of the junction in order to reproduce such properties when using effective one-dimensional models.
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