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Proceedings Paper

Electron-phonon interactions in AlxGa1-xAs: nonmonotonic dependence on the alloy composition
Author(s): Kong-Thon F. Tsen; David K. Ferry; A. Salvador; Hadis Morkoc
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Paper 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.

Paper Details

Date Published: 24 May 1999
PDF: 9 pages
Proc. SPIE 3624, Ultrafast Phenomena in Semiconductors III, (24 May 1999); doi: 10.1117/12.349303
Show Author Affiliations
Kong-Thon F. Tsen, Arizona State Univ. (United States)
David K. Ferry, Arizona State Univ. (United States)
A. Salvador, Virginia Commonwealth Univ. (United States)
Hadis Morkoc, Virginia Commonwealth Univ. (United States)


Published in SPIE Proceedings Vol. 3624:
Ultrafast Phenomena in Semiconductors III
Kong-Thon F. Tsen, Editor(s)

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