Spin-dependent scattering of hole wave-packets in quantum threads

Abstract

We study scattering processes for holes, in the presence of Rashba spin orbit interaction, through quasionedimensional semiconductor systems in the absence of band mixing. The corresponding Schrödinger equation was numerically solved by finite differences method describing the holes with a spin-polarized Gaussian wave-packet. For finite Rashba effect, we have obtained a different behavior of the kinetic coefficients as expected. For the case when Rashba coupling is disregarded, our results agree with widely known theoretical predictions. Spin-resolved dispersion coefficients follow the standard probabilistic rule. The spin vector precession phenomenon was simulated, via the analysis of its components variation. In addition we show a time-line of the dispersion process under Rashba effect for particular cases of the incoming energy.