Spin flip of a single anisotropic magnetic impurity in four-terminal Landauer setup with Rashba spin-orbit coupling
Journal
Journal of Applied Physics
Journal Volume
109
Journal Issue
7
Pages
07C721
Date Issued
2011
Author(s)
Abstract
The mean-field-assisted Landauer–Keldysh formalism is employed to study the flip of an impurity spin under a uniaxial anisotropic field in two-dimensional electron gas with Rashba spin-orbit coupling. The spin-flip process with uniaxial anisotropic axis set to three different directions is investigated in a four-terminal Landauer setup. We show that the spin flip follows a three-dimensional trajectory rather than in-plane motion. As bias voltage changes sign, the impurity spin will flip from one saturated state to another and move along a different trajectory, depending on the chosen initial saturated state.
Type
journal article