期刊
PHYSICAL REVIEW B
卷 101, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.101.104502
关键词
-
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- JSPS KAKENHI [18K11345, 18K03552]
- JSPS of Japan [JP18H04228]
- Grants-in-Aid for Scientific Research [18K11345, 18K03552] Funding Source: KAKEN
In this paper we find that confining a second-order topological superconductor with a harmonic potential leads to a proliferation of Majorana corner modes. As a consequence, this results in the formation of Majorana corner flat bands which have a fundamentally different origin from that of the conventional mechanism. This is due to the fact that they arise solely from the one-dimensional gapped boundary states of the hybrid system that become gapless without the bulk gap closing under the increase of the trapping potential magnitude. The Majorana corner states are found to be robust against the strength of the harmonic trap and the transition from Majorana corner states to Majorana flat bands is merely a smooth crossover. As a harmonic trap can potentially be realized in heterostructures, this proposal paves a way to observe these Majorana corner flat bands in an experimental context.
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