Distinguishing a Majorana zero mode using spin-resolved measurements
- Authors
- Jeon, Sangjun; Xie, Younglong; Li, Jian; Wang, Zhijun; Bernevig, B.Andrei; Yazdani, Ali
- Issue Date
- Oct-2017
- Publisher
- American Association for the Advancement of Science
- Citation
- Science, v.358, no.6364, pp 772 - 776
- Pages
- 5
- Journal Title
- Science
- Volume
- 358
- Number
- 6364
- Start Page
- 772
- End Page
- 776
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/59303
- DOI
- 10.1126/science.aan3670
- ISSN
- 0036-8075
1095-9203
- Abstract
- One-dimensional topological superconductors host Majorana zero modes (MZMs), the nonlocal property of which could be exploited for quantum computing applications. We use spin-polarized scanning tunneling microscopy to show that MZMs realized in self-assembled Fe chains on the surface of Pb have a spin polarization that exceeds that stemming from the magnetism of these chains. This feature, captured by our model calculations, is a direct consequence of the nonlocality of the Hilbert space of MZMs emerging from a topological band structure. Our study establishes spin-polarization measurements as a diagnostic tool to distinguish topological MZMs from trivial in-gap states of a superconductor. © 2017, American Association for the Advancement of Science. All rights reserved.
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- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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