States of antimony and tin atoms in lead chalcogenides
- Herzen State Pedagogical University (Russian Federation)
- St. Petersburg State Polytechnical University (Russian Federation)
It is shown by Moessbauer spectroscopy of the {sup 119}Sb({sup 119m}Sn) isotope that impurity antimony atoms in PbS, PbSe, and PbTe lattices are distributed between cation and anion sublattices. In n-type samples, the greatest part of antimony is located in the anion sublattice; in hole ones, in the cation sublattice. The tin atoms formed as a result of radioactive decay of {sup 119}Sb (antisite state) are electrically inactive in the anion sub-lattice of PbS and PbSe, while, in the cation sublattice, they form donor U{sup -} centers. Electron exchange between the neutral and doubly ionized tin U{sup -} centers via the allowed band states is observed. The tin atoms formed after radioactive decay of {sup 119}Sb are electrically inactive in the anion and cation sublattices of PbTe.
- OSTI ID:
- 22004840
- Journal Information:
- Semiconductors, Journal Name: Semiconductors Journal Issue: 4 Vol. 45; ISSN SMICES; ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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