Intrinsic and Extrinsic Spin Hall Effects of Dirac Electrons
نویسندگان
چکیده
منابع مشابه
Dissipation effects in spin-Hall transport of electrons and holes
We investigate the spin-Hall effect of both electrons and holes in semiconductors using the Kubo formula in the correct zero-frequency limit taking into account the finite momentum relaxation time of carriers in real semiconductors. This approach allows us to analyze the range of validity of recent theoretical findings. In particular, the spin-Hall conductivity vanishes for vanishing spin-orbit...
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Intrinsic and extrinsic spin Hall effects are considered together on an equal theoretical footing for the Rashba spin-orbit coupling in two-dimensional 2D electron and hole systems, using the diagrammatic method for calculating the spin Hall conductivity. Our analytic theory for the 2D holes shows the expected lowest-order additive result for the spin Hall conductivity. But, the 2D electrons ma...
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The prediction of intrinsic spin Hall currents by Murakami et al. and Sinova et al. raised many questions about methods of detection and the effect of disorder. We focus on a contact between a Rashba-type spin-orbit coupled region with a normal two-dimensional electron gas and show that the spin Hall currents, though vanishing in the bulk of the sample, can be recovered from the edges. We also ...
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Lin Miao,1,* Z. F. Wang,2,* Meng-Yu Yao,1 Fengfeng Zhu,1 J. H. Dil,3,4 C. L. Gao,1 Canhua Liu,1 Feng Liu,2,† Dong Qian,1,† and Jin-Feng Jia1,† 1Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China 2Department of Materials Science and Engineering, University of Utah, Salt La...
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A fully relativistic description of the spin-orbit induced spin Hall effect is presented that is based on Kubo's linear response formalism. Using an appropriate operator for the spin-current density a Kubo-Středa-like equation for the spin Hall conductivity (SHC) is obtained. An implementation using the Korringa-Kohn-Rostoker band structure method in combination with the coherent potential appr...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2017
ISSN: 0031-9015,1347-4073
DOI: 10.7566/jpsj.86.094704