Nearly perfect valley filter in silicene

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Detail(s)

Original languageEnglish
Article number55301
Journal / PublicationJournal of Physics Condensed Matter
Volume28
Issue number5
Publication statusPublished - 13 Jan 2016

Abstract

We demonstrate theoretically how a perfect valley filter can be obtained in silicene under the effects of a ferromagnetic stripe and an electric field perpendicular to silicene. A ferromagnetic stripe or an electric field alone can not generate any valley polarization in silicene, but a combination of them can make a perfect valley filter. Two configurations, one with magnetization of the ferromagnetic stripe being perpendicular to the silicene plane and one being parallel to the current direction, are considered. Our proposed device is useful for the realization of a valley beam filter in the development of valleytronic devices.

Research Area(s)

  • silicone, valley filter, valleytronics

Citation Format(s)

Nearly perfect valley filter in silicene. / Zhang, Qingtian; Chan, K. S.; Long, Mengqiu.

In: Journal of Physics Condensed Matter, Vol. 28, No. 5, 55301, 13.01.2016.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal