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(Color online) First-order Raman scattering spectra of the . Note the small increase in the phonon linewidths in the region away from the central part of the film.
Low-temperature and low-resolution photoluminescence spectra of the GaN film grown on TiC.
(Color online) High-resolution photoluminescence spectrum of the film in the near band edge spectral region. Note that the FEA emission line becomes dominant with increasing sample temperature.
characteristic of the GaN film on (111) TiC mounted on a device carrier, measured with a point probe at the GaN surface.
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