Volume 88, Number 2, October 2009
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||03 November 2009|
Nonvanishing anisotropic magnetoresistance in Rashba two-dimensional electron systems with nonmagnetic disorders
School of Physics and Electrical Engineering, Anyang Normal University - Anyang 455000, China
Corresponding author: firstname.lastname@example.org
Accepted: 5 October 2009
We study anisotropic magnetoresistance (AMR) in a spin-polarized two-dimensional electron gas with Rashba spin-orbit coupling and nonmagnetic disorder collision. We show that AMR exists, arising from the combined effect of in-plane magnetization, spin-orbit coupling, and nonmagnetic remote disorder scattering. Further, numerical evaluation demonstrates that the smoothness of the remote disorder can strongly affect AMR, and this AMR is sensitive to the electron density. A large magnitude of AMR (≈ 24%) is obtained for low-density systems with strong spin-orbit splitting.
PACS: 73.43.Qt – Magnetoresistance / 72.25.Dc – Spin polarized transport in semiconductors / 71.70.Ej – Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect
© EPLA, 2009
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