Figure 8
From: Damage to epitaxial GaN layer on Al2O3 by 290-MeV 238U32+ ions irradiation

ULO and LOPC peaks decomposed from A1(LO) phonon bands of GaN film with 290-MeV U32+-ion irradiation at different fluences. Black lines are original experiment curves, red lines are the fitting curves of original experiment data, and green lines and blue lines represent the ULO and LOPC modes, respectively. Green lines and blue lines are decomposed curves of the red lines using Lorentz fitting. Inset:Area ratio of the ULO to LOPC peaks at different fluences.