Two dimensional magnetophonon resonance in GaInAsInP superlattices

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Cyclotron resonance and magnetophonon resonance studies have been made of superlattices grown from thin layers of Ga.47In.53As and InP, which exhibit two dimensional behaviour at temperatures up to 250K. The electron effective mass varies with layer thickness in reasonable agreement with the calculated non-parabolicity. The LO phonon energies are calculated from magnetophonon oscillations and mass values obtained from cyclotron resonance. A strong series of oscillations results from the dominant 'GaAs-like' mode in GaInAs. A second, weaker series corresponds to the energy of the InP LO phonon. This is evidence for a long range phonon interaction, with the field of the phonons extending into the GaInAs to cause a significant coupling with the electrons bound in the quantum wells.

Original languageEnglish (US)
Pages (from-to)753-755
Number of pages3
JournalPhysica B+C
Volume117-118
Issue numberPART 2
DOIs
StatePublished - Jan 1 1983

ASJC Scopus subject areas

  • Engineering(all)

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