Electron-phonon interactions in AlxGa1-xAs - non-monotonic dependence upon the alloy composition

Kong-Thon Tsen, D. K. Ferry, A. Salvador, H. Morkoc

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The electron-LO phonon interaction in AlxGa1-xAs has been studied, for the alloy composition ranging from 0.1 to 0.4, by picosecond Raman spectroscopy. We have found that the relative strength of the Frohlich interaction of the two LO phonon modes is a nonlinear function, and increases non-monotonically with the Al composition. The possible origins of these novel results are discussed in term of nonlinear dielectric theory and ordering in the alloy.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Place of PublicationBellingham, WA, United States
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages257-265
Number of pages9
Volume3624
ISBN (Print)0819430943
Publication statusPublished - 1999
EventProceedings of the 1999 Ultrafast Phenomena in Semiconductors III - San Jose, CA, USA
Duration: Jan 27 1999Jan 29 1999

Other

OtherProceedings of the 1999 Ultrafast Phenomena in Semiconductors III
CitySan Jose, CA, USA
Period1/27/991/29/99

    Fingerprint

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Tsen, K-T., Ferry, D. K., Salvador, A., & Morkoc, H. (1999). Electron-phonon interactions in AlxGa1-xAs - non-monotonic dependence upon the alloy composition. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3624, pp. 257-265). Bellingham, WA, United States: Society of Photo-Optical Instrumentation Engineers.