Effect of the spin-orbit interaction on the band structure and conductance of quasi-one-dimensional systems
arXiv:cond-mat/9910466 · doi:10.1103/PhysRevB.60.14272
Abstract
We discuss the effect of the spin-orbit interaction on the band structure, wave functions and low temperature conductance of long quasi-one-dimensional electron systems patterned in two-dimensional electron gases (2DEG). Our model for these systems consists of a linear (Rashba) potential confinement in the direction perpendicular to the 2DEG and a parabolic confinement transverse to the 2DEG. We find that these two terms can significantly affect the band structure introducing a wave vector dependence to subband energies, producing additional subband minima and inducing anticrossings between subbands. We discuss the origin of these effects in the symmetries of the subband wave functions.
15 pages including 14 figures; RevTeX; to appear in Phys.Rev.B (15 Nov 1999)
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