Influences of conduction band non-parabolicity on intersubband absorption and photon drag in a single quantum well

Chen, Xin

doi:10.1016/s0921-4526(99)00159-3

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2007

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“…The energy-dependent effective mass, leading to nonorthogonal eigenfunctions, has been employed to study the electronic structure 5 and optical excitations 6,7 of quantum wells ͑QWs͒. Intersubband spin-density excitations in QWs have been addressed using the Kohn-Sham equations with energy-dependent effective mass.…”

Section: Introductionmentioning

confidence: 99%

Nonparabolicity and dielectric effects on addition energy spectra of spherical nanocrystals

Planelles¹,

Royo²,

Pí

2007

Journal of Applied Physics

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An extension of the spin density functional theory simultaneously accounting for dielectric mismatch between neighboring materials and nonparabolicity corrections originating from interactions between conduction and valence bands is presented. This method is employed to calculate ground state and addition energy spectra of homogeneous and multishell spherical quantum dots. Our calculations reveal that corrections become especially relevant when they come into play simultaneously in strong regimes of spatial confinement.

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Section: Introductionmentioning

confidence: 99%