Abstract.
The spin Hall transport properties in a two-dimensional electron system with both Rashba spin-orbit coupling (SOC) and magnetic impurities are investigated. Electrons are scattered by impurities through an exchange interaction that leads to spin flip-flop processes and so changes the spin Hall effect induced by the SOC. The spin Hall conductance is calculated in a 4-terminal system using the Landauer-Buttiker formula and Green function approach. In comparison with the simulation results on nonmagnetic impurities doping systems, our results reveal that the spin Hall conductance is still nonzero in a system with a large density of magnetic impurities and a finite intensity of the exchange interaction between the electrons and impurities, and its sign may be altered when the doping density and interaction strength are large enough.
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References
Ming-Che Chang, Phys. Rev. B 71, 085315 (2005)
G.F. Dresselhaus, Phys. Rev. 100, 580 (1955)
E.G. Mishchenko, A.V. Shytov, B.I. Halperin, Phys. Rev. Lett. 93, 226602 (2004)
P. Schwab, R. Raimondi, Eur. Phys. J. B 25, 483 (2002); R. Raimondi, P. Schwab, Phys. Rev. B 71, 033311 (2005)
M. Büttiker, Phys. Rev. Lett. 57, 1761 (1986)
L. Sheng, D.N. Sheng, C.S. Ting, Phys. Rev. Lett. 94, 016602 (2005)
Jian Li, Liangbin Hu, Shun-Qing Shen, Phys. Rev. B 71, 241305(R) (2005)
T.P. Pareek, P. Bruno, Phys. Rev. B 65, 241305(R), (2002)
J. Zhang, Q.W. Shi, J. Yang, J. Chem. Phys. 120, 7733, (2004)
F.G. Moliner, V.R. Velasco, Phys. Rep. 200, 83 (1991)
K. Nomura, Jairo Sinova, N.A. Sinitsyn, A.H. MacDonald, Phys. Rev. B 72, 165316 (2005)
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Liu, P., Xiong, SJ. Spin-Hall transport in a two-dimensional electron system with magnetic impurities . Eur. Phys. J. B 51, 513–516 (2006). https://doi.org/10.1140/epjb/e2006-00239-1
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DOI: https://doi.org/10.1140/epjb/e2006-00239-1