作者: L. G. Wang , Kai Chang , K. S. Chan
DOI: 10.1063/1.2170782
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摘要: We investigate theoretically spin-polarized transport in a one-dimensional waveguide structure under spatially periodic electric fields. Strong current can be obtained by tuning the external It is interesting to find that spin-dependent transmissions exhibit gaps at various electron momenta and/or gate lengths, and gap width increases with increasing strength of Rashba effect. The strong arises from different transmission spin-up spin-down electrons. (c) 2006 American Institute Physics.