Monte Carlo studies of the electron-phonon interactions in AlGaAs

L. Shifren, D. K. Ferry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experimental Raman spectroscopy studies, performed by two different groups, to measure the relative strength of the polar modes in Al xGa 1-xAs differed in that one showed a linear behavior with the Al concentration while the other showed a non-monotonic behavior. We have used an ensemble Monte Carlo code to study this system. It is found that the excitation energy and the electron concentration all contribute to the experimental discrepancies, while the excitation pulse width had little effect on the measured relative strength of the Al-mode. Apparently the relative strength of the Al-mode scattering is density dependent for x≥0.25.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages225-234
Number of pages10
Volume3940
StatePublished - 2000
EventUltrafast Phenomena in Semiconductors IV - San Jose, CA, USA
Duration: Jan 27 2000Jan 28 2000

Other

OtherUltrafast Phenomena in Semiconductors IV
CitySan Jose, CA, USA
Period1/27/001/28/00

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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    Shifren, L., & Ferry, D. K. (2000). Monte Carlo studies of the electron-phonon interactions in AlGaAs. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3940, pp. 225-234). Society of Photo-Optical Instrumentation Engineers.