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Title: Electron-electron interaction and spin-orbit coupling in InAs/AlSb heterostructures with a two-dimensional electron gas

Abstract

The effect of electron-electron interaction on the spectrum of two-dimensional electron states in InAs/AlSb (001) heterostructures with a GaSb cap layer with one filled size-quantization subband. The energy spectrum of two-dimensional electrons is calculated in the Hartree and Hartree-Fock approximations. It is shown that the exchange interaction decreasing the electron energy in subbands increases the energy gap between subbands and the spin-orbit splitting of the spectrum in the entire region of electron concentrations, at which only the lower size-quantization band is filled. The nonlinear dependence of the Rashba splitting constant at the Fermi wave vector on the concentration of two-dimensional electrons is demonstrated.

Authors:
;  [1]
  1. Laboratoire National des Champs Magnetiques Intenses (France)
Publication Date:
OSTI Identifier:
22004886
Resource Type:
Journal Article
Journal Name:
Semiconductors
Additional Journal Information:
Journal Volume: 45; Journal Issue: 1; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7826
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRON GAS; ELECTRON-ELECTRON COLLISIONS; ELECTRON-ELECTRON COUPLING; ELECTRON-ELECTRON INTERACTIONS; ELECTRONS; ENERGY GAP; ENERGY SPECTRA; EXCHANGE INTERACTIONS; GALLIUM ANTIMONIDES; HARTREE-FOCK METHOD; INDIUM ARSENIDES; LAYERS; L-S COUPLING; NONLINEAR PROBLEMS; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Gavrilenko, V I, Krishtopenko, S. S., E-mail: ds_a-teens@mail.ru, and Goiran, M. Electron-electron interaction and spin-orbit coupling in InAs/AlSb heterostructures with a two-dimensional electron gas. United States: N. p., 2011. Web. doi:10.1134/S1063782611010088.
Gavrilenko, V I, Krishtopenko, S. S., E-mail: ds_a-teens@mail.ru, & Goiran, M. Electron-electron interaction and spin-orbit coupling in InAs/AlSb heterostructures with a two-dimensional electron gas. United States. https://doi.org/10.1134/S1063782611010088
Gavrilenko, V I, Krishtopenko, S. S., E-mail: ds_a-teens@mail.ru, and Goiran, M. 2011. "Electron-electron interaction and spin-orbit coupling in InAs/AlSb heterostructures with a two-dimensional electron gas". United States. https://doi.org/10.1134/S1063782611010088.
@article{osti_22004886,
title = {Electron-electron interaction and spin-orbit coupling in InAs/AlSb heterostructures with a two-dimensional electron gas},
author = {Gavrilenko, V I and Krishtopenko, S. S., E-mail: ds_a-teens@mail.ru and Goiran, M},
abstractNote = {The effect of electron-electron interaction on the spectrum of two-dimensional electron states in InAs/AlSb (001) heterostructures with a GaSb cap layer with one filled size-quantization subband. The energy spectrum of two-dimensional electrons is calculated in the Hartree and Hartree-Fock approximations. It is shown that the exchange interaction decreasing the electron energy in subbands increases the energy gap between subbands and the spin-orbit splitting of the spectrum in the entire region of electron concentrations, at which only the lower size-quantization band is filled. The nonlinear dependence of the Rashba splitting constant at the Fermi wave vector on the concentration of two-dimensional electrons is demonstrated.},
doi = {10.1134/S1063782611010088},
url = {https://www.osti.gov/biblio/22004886}, journal = {Semiconductors},
issn = {1063-7826},
number = 1,
volume = 45,
place = {United States},
year = {2011},
month = {1}
}