Abstract
Abstract The valence states of 119Sn produced by the EC decay of diluted 119Sb and 119mTe chemically doped in S, Se, and Te were studied by emission Mössbauer spectroscopy. The Mössbauer spectra of S(119mTe) and Se(119mTe) consist of peaks ascribable to Sn(IV) and to Sn(II) surrounded by S or Se, respectively. The Mössbauer spectra of Te(119Sb) samples show that, though a greater part of the 119Sb atoms are dispersed in the Te matrix after coprecipitation and sublimation, upon slow recrystallization after fusion most of the dispersed 119Sb atoms aggregate to form microcrystals of 119Sb2Te3.
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