Abstract
We have performed Mossbauer absorption and emission experiments on57Fe impurities in ZnTe. A transient Fe1+ charge state has been observed below 130 K in the emission spectra. The dynamics of the Fe1+−Fe2+ charge transfer was shown to obey an activation process with an activation energy of 0.09 eV. Low temperature Raman relaxation rates within the Fe2+ spin-orbit levels are found to be at least 100 times faster in ZnTe than in ZnS.
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