期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 465, 期 -, 页码 88-92出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2018.04.043
关键词
Majorana bound states; Topological superconductivity; Current-switch effect
资金
- Comprehensive Programme SB RAS [0356-2015-0403]
- Russian Foundation for Basic Research
- Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [16-02-00073, 17-42-240441]
- Russian Federation [MK-1398.2017.2]
We present the study of transport properties of a superconducting wire with strong Rashba spin-orbit coupling for different orientations of an external magnetic field. Using the nonequilibrium Green's functions in the tight-binding approach the crucial impact of the relative alignment of lead magnetization and the Majorana bound state (MBS) spin polarization on the low-bias conductance and shot noise is presented. Depending on this factor the transport regime can effectively vary from symmetric to extremely asymmetric. In the last situation the suppression of MBS-assisted conductance results in current-switch effect allowing the electrical detection of the Majorana fermions. (C) 2018 Published by Elsevier B.V.
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