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 that 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.

RASHBA CONTROL FOR THE SPIN EXCITATION OF A FULLY SPIN POLARIZED QUANTUM DOT

TAGLIACOZZO, ARTURO;P. LUCIGNANO;
2005

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 that 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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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/9084
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