Nonvanishing anisotropic magnetoresistance in Rashba two-dimensional electron systems with nonmagnetic disorders

2009/10/01 by C. M. Wang, M. Q. Pang · 9 citations
Materials Science · Physics and Astronomy · #Anisotropy #Coupling (piping) #Electron #Electron density #Electronic and Structural Properties of Oxides #Magnetoresistance #Quantum and electron transport phenomena #Topological Materials and Phenomena #Weak localization #cond-mat.mes-hall

paper · pdf · doi:10.1209/0295-5075/88/27005

published in Europhysics Letters (EPL) 88(2), 27005 (Institute of Physics) · 6 pages, 3 figures

openalex publication_date 2009/10/01 · arxiv created 2009/11/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

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. Large magnitude of AMR (≈24%) is obtained for low density system with strong spin-orbit splitting.

Citations

• A kinetic equation approach to the anomalous Hall effect in a diffusive Rashba two-dimensional electron system with magnetization
• Semiclassical theories of the anomalous Hall effect
• Universal Intrinsic Spin Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Anisotropic magnetoresistance inGa1−xMnxAs