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Magnetization curve of (a) nonmagnetic and (b) magnetic GaMnN films measured at .
(Color online) Room temperature PL spectra of nonmagnetic (open circles) and magnetic (closed squares) GaMnN films in the (a) ultraviolet (UV) and (b) infrared (IR) region.
Low temperature PL spectra of (a) nonmagnetic and (b) magnetic GaMnN films in the IR region. The PL emission intensity of emission peak is stronger considerably for magnetic GaMnN film.
Energy diagram showing the energy levels of in GaN and the PL excitation process resulting in emission at .
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