How to distinguish the Raman modes of epitaxial GaN with phonon features from sapphire substrate

Feng, Z.C.Z.C.FengSchurman, M.M.SchurmanStall, R.A.R.A.Stall2010-09-022018-07-052010-09-022018-07-051997-01http://ntur.lib.ntu.edu.tw//handle/246246/193677en-USHow to distinguish the Raman modes of epitaxial GaN with phonon features from sapphire substratejournal article