Abstract:

The currentinduced spin polarization in a twodimensional electron system with Rashba spinorbit coupling is investigated. For δform electronimpurity scattering, the spin polarization is consistent with the literature. In the case of remote electronimpurity collision, the spin polarization is found to be dependent on the electron density and increases with enlargement of the impurity distance, which is in contrast to the case for shortrange potential. And the Rashba spinorbit coupling constant can not be determined by measuring the longitudinal conductivity and magnetization in this situation.

Key words: spin-orbit coupling; spin polarization; long-range electronimpurity scattering