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Spin-orbit lateral superlattices: energy bands and spin polarization in 2DEG by Demikhovskii, V. Ya.; Khomitsky, D. V. is a scholarly article available to read on EtoBox.

What is Spin-orbit lateral superlattices: energy bands and spin polarization in 2DEG about?

The Bloch spinors, energy spectrum and spin density in energy bands are studied for the two-dimensional electron gas (2DEG) with Rashba spin-orbit (SO) interaction subject to one-dimensional (1D) periodic electrostatic potential of a lateral superlattice. The space symmetry of the Bloch spinors with spin parity is studied. It is shown that the Bloch spinors at fixed quasimomentum describe the standing spin waves with the wavelength equal to the superlattice period. The spin projections in these states have the components both parallel and transverse to the 2DEG plane. The anticrossing of the energy dispersion curves due to the interplay between the SO and periodic terms is observed, leading to the spin flip. The relation between the spin parity and the interband optical selection rules is discussed, and the effect of magnetization of the SO superlattice in the presence of external electric field is predicted.

Author

Demikhovskii, V. Ya.; Khomitsky, D. V.

Published

2006

Language

EN