Characterizing the helical Andreev states of a second-order topological insulator

被引：0
|
作者：
不详
机构：
[1] Universite Paris-Saclay, Orsay, France
来源：
NATURE PHYSICS | 2023年 / 19卷 / 03期
关键词：
Compendex;
D O I：
10.1038/s41567-022-01863-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Measurements of the switching supercurrent statistics of a superconducting quantum interference device based on bismuth, a second-order topological insulator, reveal that excited Andreev states are surprisingly long-lived. This protection can be attributed to the splitting of the Andreev pairs carrying the supercurrent along separate crystal hinges of opposite helicities.
引用
收藏
页码：323 / 324
页数：2
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