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Nova scientia
versión On-line ISSN 2007-0705
Resumen
CUAN, R. y DIAGO-CISNEROS, L.. Dynamics of holes wave-packets under Rashba spin-orbit coupling. Nova scientia [online]. 2013, vol.5, n.9, pp.76-88. ISSN 2007-0705.
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.
Palabras llave : Spintronics; spin-orbit coupling; spin-polarized transport in semiconductors; spin field effect transistors.