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Spin filtering through a double-bend structure

Q. W. Shi·J. Zhou·M. W. Wu
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Abstract

We propose a simple scheme for the spin filter by studying the coherent transport of electrons through a double-bend structure in a quantum wire with a weak lateral magnetic potential which is much weaker than the Fermi energy of the leads. {\em Extremely large} spin polarized current in the order of {\em micro-Ampere} can be obtained because of the strong resonant behavior from the double bends. Further study suggests the roubustness of this spin filter.

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Q. W. Shi, J. Zhou, M. W. Wu. 2004-04-26. Spin filtering through a double-bend structure. https://doi.org/10.1063/1.1796531

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