Dynamics of holes wave-packets under Rashba spin-orbit coupling
DOI:
https://doi.org/10.21640/ns.v5i9.2820Keywords:
Spintronics, spin-orbit coupling, spin-polarized transport in semiconductors, spin field effect transistorsAbstract
The dynamics of a Gaussian wave-packet of heavy holes is studied in the presence of Rashba spin-orbit interaction for a quasi-one-dimensional semiconductor system. A finite-difference scheme, based on the Cayley approach, has been extended to solve the time-dependent Schrödinger equation for holes. It is shown the phenomenon of hole-spin precession via a numerical simulation of the temporal evolution of the components of the wave-packet. It is possible to evaluate relevant parameters, e. g. dimensions and the spin polarization flip-time, when a spin field effect transistor device, is modeled for holes as carriers.
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