Spin distribution in the diffraction pattern of a two-dimensional electron gas with spin-orbit coupling
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
84
Journal Issue
8
Date Issued
2011
Author(s)
Lin, C.-J.
Abstract
Spin distribution in the diffraction pattern of a two-dimensional electron gas by a split gate and a quantum point contact is computed in the presence of the spin-orbit coupling. After diffracted, the component of spin perpendicular to the two-dimensional plane can be generated up to 0.42 . The nontrivial spin distribution is the consequence of a pure spin current in the transverse direction generated by the diffraction. The direction of the spin current can be controlled by tuning the chemical potential. © 2011 American Physical Society.
Type
journal article