2S1 / 2-State Centers in II–VI Compounds

Abstract
The electron paramagnetic resonance spectra of the 2S1 / 2 ground states of Ge3+, Sn3+, and Pb3+ in ZnSe are reported. Ligand superhyperfine structure has been observed for Ga2+ in ZnS, and optically induced population inversion in the ground levels of Ga2+ and Tl2+ is discussed.

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