24 May 1999 Decay of the longitudinal optical phonons in wurtzite GaN
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Abstract
Decay of the longitudinal optical (LO) phonons in wurtzite GaN has been studied by subpicosecond time-resolved Raman spectroscopy. Our experimental results show that, among the various possible decay channels, the LO phonons in wurtzite GaN decay primarily into a large wavevector TO and a large wavevector LA or TA phonons. These experimental results are consistent with the recent theoretical calculations of the phonon dispersion curves for wurtzite GaN.
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Kong-Thon F. Tsen, David K. Ferry, A. Salvador, Hadis Morkoc, "Decay of the longitudinal optical phonons in wurtzite GaN", Proc. SPIE 3624, Ultrafast Phenomena in Semiconductors III, (24 May 1999); doi: 10.1117/12.349302; https://doi.org/10.1117/12.349302
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