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Rashba-control for the spin excitation of a fully spin polarized vertical quantum dot

P. Lucignano·B. Jouault·A. Tagliacozzo·B. L. Altshuler
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Abstract

Far infrared radiation absorption of a quantum dot with few electrons in an orthogonal magnetic field could monitor the crossover to the fully spin polarized state. A Rashba spin-orbit coupling can tune the energy and the spin density of the first excited state which has a spin texture carrying one extra unit of angular momentum. The spin orbit coupling can squeeze a flipped spin density at the center of the dot and can increase the gap in the spectrum.

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P. Lucignano, B. Jouault, A. Tagliacozzo, B. L. Altshuler. 2005-01-03. Rashba-control for the spin excitation of a fully spin polarized vertical quantum dot. https://doi.org/10.1103/physrevb.71.121310

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