Light scattering in GaAs parabolic quantum wells

Jose Menendez, A. Pinczuk, A. C. Gossard, M. G. Lamont, F. Cerdeira

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report the observation of electronic light scattering in photoexcited parabolic GaAsAlxGa1-xAs quantum wells. The spectra show sharp peaks corresponding to transitions between sublevels in the conduction band. The precision of the measurements allows a test of the simple harmonic oscillator model for the energy level structure. The energy gap and alloy composition of the AlxGa1-xAs layers are determined from resonance Raman scattering by optical phonons. We use these results to calculate the conduction band offset Qe. We obtain Qe ∼ 0.7, in agreement with recent experiments in square quantum wells.

Original languageEnglish (US)
Pages (from-to)601-605
Number of pages5
JournalSolid State Communications
Volume61
Issue number10
DOIs
StatePublished - 1987
Externally publishedYes

Fingerprint

Conduction bands
Light scattering
Semiconductor quantum wells
conduction bands
light scattering
quantum wells
resonance scattering
Phonons
Electron transitions
harmonic oscillators
Electron energy levels
Raman scattering
phonons
Energy gap
energy levels
Raman spectra
Chemical analysis
electronics
Experiments
gallium arsenide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Menendez, J., Pinczuk, A., Gossard, A. C., Lamont, M. G., & Cerdeira, F. (1987). Light scattering in GaAs parabolic quantum wells. Solid State Communications, 61(10), 601-605. https://doi.org/10.1016/0038-1098(87)90369-3

Light scattering in GaAs parabolic quantum wells. / Menendez, Jose; Pinczuk, A.; Gossard, A. C.; Lamont, M. G.; Cerdeira, F.

In: Solid State Communications, Vol. 61, No. 10, 1987, p. 601-605.

Research output: Contribution to journalArticle

Menendez, J, Pinczuk, A, Gossard, AC, Lamont, MG & Cerdeira, F 1987, 'Light scattering in GaAs parabolic quantum wells', Solid State Communications, vol. 61, no. 10, pp. 601-605. https://doi.org/10.1016/0038-1098(87)90369-3
Menendez, Jose ; Pinczuk, A. ; Gossard, A. C. ; Lamont, M. G. ; Cerdeira, F. / Light scattering in GaAs parabolic quantum wells. In: Solid State Communications. 1987 ; Vol. 61, No. 10. pp. 601-605.
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