On the problem of the spontaneous exchange-driven electron interwell re-population in semiconductor quantum wellsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We reconsider the problem of the so-called exchange instability in symmetric semiconductor quantum wells, that is, an earlier proposed mechanism of a spontaneous inter:ell electron re-population due to different carrier density dependence of the Hartree and exchange energies. We show that the instability presents only in straightforward Hartree-Fock calculations and disappears as one takes into account interwell electron correlations.