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Spin-polarized quantum transport through a T-shape quantum dot-array: a model of spin splitter

Rui Wang·J. -Q. Liang
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Abstract

We in this paper study theoretically the spin-polarized quantum transport through a T-shape quantum dot-array by means of transfer-matrix method along with the Green^{,}s function technique. Multi-magnetic fields are used to produce the spin-polarized transmission probabilities and therefore the spin currents, which are shown to be tunable in a wide range by adjusting the energy, and the direction-angle of magnetic fields as well. Particularly the opposite- spin- polarization currents separately flowing out to two electrodes can be generated and thus the system acts as a spin splitter.

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Rui Wang, J. -Q. Liang. 2006-11-03. Spin-polarized quantum transport through a T-shape quantum dot-array: a model of spin splitter. https://doi.org/10.1103/physrevb.74.144302

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