DIRECT MEASUREMENTS OF ELECTRON-LONGITUDINAL OPTICAL PHONON-SCATTERING RATES IN WURTZITE GAN

Authors
TSEN KT FERRY DK BOTCHKAREV A SVERDLOV B SALVADOR A MORKOC H
Citation
Kt. Tsen et al., DIRECT MEASUREMENTS OF ELECTRON-LONGITUDINAL OPTICAL PHONON-SCATTERING RATES IN WURTZITE GAN, Applied physics letters, 71(13), 1997, pp. 1852-1853
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
71
Issue
13
Year of publication
1997
Pages
1852 - 1853
Database
ISI
SICI code
0003-6951(1997)71:13<1852:DMOEOP>2.0.ZU;2-J
Abstract
Electron-longitudinal optical phonon scattering rates in wurtzite GaN have been directly measured by subpicosecond time-resolved Raman spect roscopy. We find that the total electron-longitudinal optical phonon s cattering rate in GaN is about one order of magnitude larger than that in GaAs. We attribute this enormous increase in the electron-longitud inal optical phonon scattering rate to the much larger ionicity in GaN . (C) 1997 American Institute of Physics.