Phonon dynamics and lifetimes of ain and gan crystallites

Leah Bergman, Dimitri Alexson, Robert Nemanich, Mitra Dutta, Michael A. Stroscio, Cengiz Balkas, Robert F. Davis

Research output: Chapter in Book/Report/Conference proceedingChapter


The quasi-LO and quasi-TO modes of A1N crystallite were investigated. The analysis indicates that the Raman mode behavior concurs with Loudons' model of mode-mixing in wurtzite (WZ) structure crystals which is due to the long-range electrostatic field. Phononlifetimes of GaN and A1N crystallites were studied via Raman lineshape. It was found that the low energy E2 mode lifetime is about an order of magnitude longer than that of the other modes, and that impurities impact significantly the phonon-lifetimes.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsS.J. Pearton, C. Kuo, A.F. Wright, T. Uenouyama
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1998 MRS Fall Meeting - Symposium on 'GaN and Related Alloys' - Boston, MA, United States
Duration: Nov 30 1998Dec 4 1998


OtherProceedings of the 1998 MRS Fall Meeting - Symposium on 'GaN and Related Alloys'
Country/TerritoryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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