https://doi.org/10.1140/epjb/s10051-022-00442-6
Regular Article - Solid State and Materials
Spin-valley filtering induced by resonant states in silicene
School of Physics and Electronic Engineering, Linyi University, 276005, Linyi, China
b
physlu@163.com
c
likaicai@lyu.edu.cn
Received:
13
September
2022
Accepted:
18
October
2022
Published online:
27
October
2022
We studied the spin and valley transport of silicene through a resonant-tunneling structure with electric field and magnetic field. It is demonstrated that a perfect spin-valley filtering effect can be obtained, where both spin and valley indices are polarized simultaneously. The spin-valley filtering benefits from the break of spatial invariance and the form of spin-valley-polarized resonant states. A high spin-valley-polarized conductance can be realized at certain values of the electric field. Furthermore, the resonant-tunneling structure composed of electric field and potential field is also feasible to fully filter spin-valley electrons, implying an electrically controlled spin-valley filter.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
