Field-assisted spin-polarized electron transport through a single quantum well with spin-orbit coupling |
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| Authors: | Ding Xiu-Huan ab Zhang Cun-Xi c Wang Rui c Zhou Yun-Qing c and Kong Ling-Min |
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| Affiliation: | c) a) Department of Mathematics,Zhejiang Ocean University,Zhoushan 316000,China b) Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education,Jilin University,Changchun 130012,China c) Department of Physics,Zhejiang Ocean University,Zhoushan 316000,China |
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| Abstract: | We have investigated theoretically the field-driven electron transport through a single-quantum-well semiconductor heterostructure with spin-orbit coupling.The splitting of the asymmetric Fano-type resonance peaks due to the Dresselhaus spin-orbit coupling is found to be highly sensitive to the direction of the incident electron.The splitting of the Fano-type resonance induces the spin-polarization dependent electron current.The location and the line shape of the Fano-type resonance can be controlled by adjusting the energy and the direction of the incident electron,the oscillation frequency,and the amplitude of the external field.These interesting features may be used to devise tunable spin filters and realize pure spin transmission currents. |
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| Keywords: | Fano resonance Floquet channel spin-orbit coupling |
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