Efficient dual spin-valley filter in strained silicene

Can Yesilyurt, Seng Ghee Tan, Gengchiau Liang, Mansoor B.A. Jalil

研究成果: Article同行評審

33 引文 斯高帕斯(Scopus)

摘要

We propose a highly efficient dual spin-valley filter in silicene, consisting of two distinct regions. In the first region, angular separation of the two valley spins in momentum-space is induced by a uniaxial strain, with further spin separation induced by an exchange field. The second region acts as an extractor of the requisite spin-valley current by means of localized fringe magnetic fields and gate modulation of the electrical potential. We demonstrate controllable and highly efficient filtering (exceeding 90-) for all four spin-valley combinations based on realistic parameter values. We also discuss the feasibility of a practical silicene-based spin-valley filter.

原文English
文章編號105201
期刊Applied Physics Express
8
發行號10
DOIs
出版狀態Published - 1 10月 2015

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