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(Color online) PL spectra at from Eu-doped GaN samples grown with different Ga fluxes.
(Color online) magnetization vs field curve from Eu-doped GaN grown with a Ga flux of (top) and field-cooled and zero-field-cooled magnetizations as a function of temperature (bottom).
(Color online) PL intensity at and saturation magnetization at a field of at both 10 and from Eu-doped GaN as a function of Ga flux during growth.
(Color online) XRD spectrum from Eu-doped GaN grown with a Ga flux of .
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