標題: Spin orientation and spin-Hall effect induced by tunneling electrons
作者: Mal'shukov, A. G.
Chu, C. S.
電子物理學系
Department of Electrophysics
公開日期: 1-Dec-2007
摘要: It is shown that a flux of unpolarized electrons across a symmetric double barrier quantum well induces a spin polarization inside the well. Besides, the transmitted current acquires a spin polarized component and the spin-Hall current flows in the planar direction. These phenomena are due to a combined effect of Dresselhaus interaction and the spin-orbit interaction induced by gradients of heterostructure material parameters. In contrast to previous studies of the spin filtering effect, we predict that it can be observed in the case of an isotropic distribution of incident electrons.
URI: http://dx.doi.org/10.1103/PhysRevB.76.245326
http://hdl.handle.net/11536/10081
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.76.245326
期刊: PHYSICAL REVIEW B
Volume: 76
Issue: 24
起始頁: 0
結束頁: 0
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