Two-dimensional magnetophonon resonance. I. GaInAs-InP superlattices

J. C. Portal*, J. Cisowski, R. J. Nicholas, M. A. Brummell, M. Razeghi, M. A. Poisson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Magnetophonon resonance results are reported for two-dimensional electron gases confined in the GaInAs layers of GaInAs-InP superlattices. Two series of oscillations are observed: one due to scattering by the 'GaAs-like' LO phonon mode of GaInAs, and the second due to interaction with InP LO phonons. The strength of the latter series increases relative to the former as the GaInAs layer thickness is reduced. This is evidence for a long-range phonon interaction, with the InP phonon field extending into the GaInAs to couple significantly with the electrons bound in the quantum wells. No evidence of interface phonons is seen.

Original languageEnglish (US)
Article number005
Pages (from-to)L573-L578
JournalJournal of Physics C: Solid State Physics
Volume16
Issue number17
DOIs
StatePublished - 1983

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)

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