期刊
NATURE COMMUNICATIONS
卷 10, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-09771-0
关键词
-
资金
- Israeli Science Foundation (ISF)
- Minerva foundation
- European Research Council under the European Community's Seventh Framework Program (FP7/2007-2013)/ERC-Grant [339070, MUNATOP-340210]
- Israeli Science Foundation [532/12, 3-6799]
- Israeli Ministry of Science [0321-4801 (16097)]
- BSF [2014098]
- ISF
- European Research Council under European Union's Horizon 2020 research and innovation programme [788715]
- European Research Council (ERC) [339070] Funding Source: European Research Council (ERC)
Majorana quasiparticles are generally detected in a 1D topological superconductor by tunneling electrons into its edge, with an emergent zero-bias conductance peak (ZBCP). However, such a ZBCP can also result from other mechanisms, hence, additional verifications are required. Since the emergence of a Majorana must be accompanied by an opening of a topological gap in the bulk, two simultaneous measurements are performed: one in the bulk and another at the edge of a 1D InAs nanowire coated with epitaxial aluminum. Only under certain experimental parameters, a closing of the superconducting bulk-gap that is followed by its reopening, appears simultaneously with a ZBCP at the edge. Such events suggest the occurrence of a topologically non-trivial phase. Yet, we also find that ZBCPs are observed under different tuning parameters without simultaneous reopening of a bulk-gap. This demonstrates the importance of simultaneous probing of bulk and edge in the identification of Majorana edge-states.
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