Abstract
We study the spin dynamics of two-dimensional electron gases with Rashba spin-orbit coupling by taking account of electron-electron interactions. The diffusion equations for charge and spin densities are derived by making use of the path-integral approach and the quasiclassical Green’s function. Analyzing the effect of the interactions, we show that the spin-relaxation time can be enhanced by the electron-electron interaction in the ballistic regime.
- Received 28 January 2008
DOI:https://doi.org/10.1103/PhysRevB.78.195325
©2008 American Physical Society