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Spin-dependent quantum transport through an Aharonov-Bohm structure spin splitter

Spin-dependent quantum transport through an Aharonov-Bohm structure spin splitter
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摘要 Using the tight-binding model approximation, this paper investigates theoretically spin-dependent quantum transport through an Aharonov-Bohm (AB) interferometer. An external magnetic field is applied to produce the spinpolarization and spin current. The AB interferometer, acting as a spin splitter, separates the opposite spin polarization current. By adjusting the energy and the direction of the magnetic field, large spin-polarized current can be obtained. Using the tight-binding model approximation, this paper investigates theoretically spin-dependent quantum transport through an Aharonov-Bohm (AB) interferometer. An external magnetic field is applied to produce the spinpolarization and spin current. The AB interferometer, acting as a spin splitter, separates the opposite spin polarization current. By adjusting the energy and the direction of the magnetic field, large spin-polarized current can be obtained.
作者 李玉现
机构地区 College of Physics
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2008年第8期3058-3061,共4页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China (Grant No 10674040) the Natural Science Foundation of Hebei Province, China (Grant No A2007000227
关键词 Aharonov-Bohm interferometer magnetic field spin splitter Aharonov-Bohm interferometer, magnetic field, spin splitter
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参考文献18

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