Bound states, electron localization and spin correlations in low-dimensional GaAs/AlGaAs quantum constrictions.


We analyze the occurrence of local magnetization and the effects of electron localization in different models of quantum point contacts (QPCs) using spin-relaxed density functional theory (DFT/LSDA) by means of numerical simulations. In the case of soft confinement potentials the degree of localization is weak and we therefore observe only traces of partial… (More)
DOI: 10.1088/0953-8984/25/7/072201


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