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Title: Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy

Abstract

We have investigated experimentally and theoretically electronic Raman excitations in GaAs-Al{sub {ital x}}Ga{sub 1{minus}{ital x}}As quantum wires in magnetic fields. In both the experiments and the calculations we find strong anticrossings of the observed confined magnetoplasmon modes in the vicinity of 2{omega}{sub {ital c}}, where {omega}{sub {ital c}} is the cyclotron-resonance frequency. The observed splittings and anticrossings arise from internal Coulomb interaction in the one-dimensional electron systems and is found to depend sensitively not only on the wave vector but also on the shape of the confining potential and the mode index of the confined plasmon mode. {copyright} {ital 1996 The American Physical Society.}

Authors:
; ; ; ;  [1];  [2]
  1. Institut fuer Angewandte Physik und Zentrum fuer Mikrostrukturforschung, Universitaet Hamburg, Jungiusstrae 11, D-20355 Hamburg (Germany)
  2. Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrae 1, D-70569 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
397583
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 54; Journal Issue: 20; Other Information: PBD: Nov 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; GALLIUM ARSENIDES; RAMAN SPECTRA; ALUMINIUM ARSENIDES; PLASMONS; ELECTRON-ELECTRON COUPLING; MAGNETIC FIELDS; RESONANCE SCATTERING; HARTREE-FOCK METHOD; RANDOM PHASE APPROXIMATION; QUANTUM WIRES

Citation Formats

Steinebach, C, Krahne, R, Biese, G, Schueller, C, Heitmann, D, and Eberl, K. Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy. United States: N. p., 1996. Web. doi:10.1103/PhysRevB.54.R14281.
Steinebach, C, Krahne, R, Biese, G, Schueller, C, Heitmann, D, & Eberl, K. Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy. United States. https://doi.org/10.1103/PhysRevB.54.R14281
Steinebach, C, Krahne, R, Biese, G, Schueller, C, Heitmann, D, and Eberl, K. 1996. "Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy". United States. https://doi.org/10.1103/PhysRevB.54.R14281.
@article{osti_397583,
title = {Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy},
author = {Steinebach, C and Krahne, R and Biese, G and Schueller, C and Heitmann, D and Eberl, K},
abstractNote = {We have investigated experimentally and theoretically electronic Raman excitations in GaAs-Al{sub {ital x}}Ga{sub 1{minus}{ital x}}As quantum wires in magnetic fields. In both the experiments and the calculations we find strong anticrossings of the observed confined magnetoplasmon modes in the vicinity of 2{omega}{sub {ital c}}, where {omega}{sub {ital c}} is the cyclotron-resonance frequency. The observed splittings and anticrossings arise from internal Coulomb interaction in the one-dimensional electron systems and is found to depend sensitively not only on the wave vector but also on the shape of the confining potential and the mode index of the confined plasmon mode. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.54.R14281},
url = {https://www.osti.gov/biblio/397583}, journal = {Physical Review, B: Condensed Matter},
number = 20,
volume = 54,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1996},
month = {Fri Nov 01 00:00:00 EST 1996}
}