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Proceedings Paper

Monte Carlo studies of the electron-phonon interactions in AlGaAs
Author(s): Lucian A. Shifren; David K. Ferry
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Paper Abstract

Experimental Raman spectroscopy studies, performed by two different groups, to measure the relative strength of the polar modes in AlxGa1-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.

Paper Details

Date Published: 28 March 2000
PDF: 10 pages
Proc. SPIE 3940, Ultrafast Phenomena in Semiconductors IV, (28 March 2000); doi: 10.1117/12.381463
Show Author Affiliations
Lucian A. Shifren, Arizona State Univ. (United States)
David K. Ferry, Arizona State Univ. (United States)

Published in SPIE Proceedings Vol. 3940:
Ultrafast Phenomena in Semiconductors IV
Kong-Thon F. Tsen; Jin-Joo Song, Editor(s)

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