prov:value
| - The transition-metal or rare-earth dopants may be added as impurities in the source GaN or separately as metals, salts, or inorganic compounds, such as Fe, Co, CoF2, CrN, or EuF3, either alone or in combination with one or more additional dopants such as O, Si, Mg, Zn, C, or H. Such dopants may be present in concentrations raging from about 1015 cm???3 to about 1021 cm???3 in the source GaN. Depen
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