Density Functional Theory of Multicomponent Quantum Dots

Details Density Functional Theory of Multicomponent Quantum Dots Density Functional Theory of Multicomponent Quantum Dots

2004-05-06

arxiv.org/abs/cond-mat/0405107v1

Phys. Rev. B 70, 195310 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 5 figures

Scientific paper

10.1103/PhysRevB.70.195310

Quantum dots with conduction electrons or holes originating from several bands are considered. We assume the particles are confined in a harmonic potential and assume the electrons (or holes) belonging to different bands to be different types of fermions with isotropic effective masses. The density functional method with the local density approximation is used. The increased number of internal (Kohn-Sham) states leads to a generalisation of Hund's first rule at high densities. At low densitites the formation of Wigner molecules is favored by the increased internal freedom.

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