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所属单位：物理学院

发表刊物：JOURNAL OF PHYSICS D-APPLIED PHYSICS

关键字：valley polarization spin polarization floquet theory silicene

摘要：Spin and valley dependent transport properties through a two-dimensional silicene junction irradiated by a monochromatic circularly polarized light are investigated within the framework of Floquet scattering matrix. The light irradiation generates gaps in dispersion and results in selective suppression in ballistic conductance. Spin and valley polarized transmission can be achieved by tuning the driving strength of irradiation. Spin and valley polarization of conductance exhibits specific symmetry with respect to site potential, which is conveniently tuned by an external field. The controllable spin and valley polarization obtained here suggests the silicene junction ideal for future spintronics and valleytronics applications.

论文类型：期刊论文

文献类型：J

卷号：52

期号：JPD 52 445302

ISSN号：0022-3727

是否译文：否

发表时间：2019-10-30

收录刊物：SCIE

合写作者：牛志平