NDLI: Spin Filtering in a Rashba Electron Waveguide Induced by Edge Disorder

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Spin Filtering in a Rashba Electron Waveguide Induced by Edge Disorder

Content Provider	Scilit
Author	Xiao, Xian-Bo Li, Fei Liu, Nian-Hua
Copyright Year	2012
Description	Journal: Chinese Physics Letters We theoretically study the spin-dependent electron transport in a Rashba electron waveguide with rough edges, attached to ideal leads without spin-orbit interaction. The influence of the edge disorder on the charge and spin conductances is clarified by using the spin-resolved lattice Green function method. It is found that a spin-polarized current can be generated in the output lead and its spin polarization can be manipulated by varying the waveguide length. The underlying physics is attributed to the broken longitudinal symmetry and the spin-dependent quantum interference induced by the rough boundaries. Our results may provide a new method to design a spin filter without using magnetic materials or applying a magnetic field.
Related Links	http://iopscience.iop.org/article/10.1088/0256-307X/29/8/087202/pdf
ISSN	0256307X
e-ISSN	17413540
DOI	10.1088/0256-307x/29/8/087202
Journal	Chinese Physics Letters
Issue Number	8
Volume Number	29
Language	English
Publisher	IOP Publishing
Publisher Date	2012-08-01
Access Restriction	Open
Subject Keyword	Journal: Chinese Physics Letters Public, Environmental and Occupational Health
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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