Low-temperature anomalies of the dielectric permeability of Sn2P2S6 crystals
Low-temperature anomalies of dielectric permittivity of S n 2 P 2 S 6 crystals were investigated. It is shown that these phenomena have a relaxation character and the observed anomalies could be related to the small hole polarons dynamics with donor-acceptor compensation processes in lattice with ti...
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Veröffentlicht in: | Low temperature physics (Woodbury, N.Y.) N.Y.), 2024-01, Vol.50 (1), p.56-65 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Low-temperature anomalies of dielectric permittivity of
S
n
2
P
2
S
6 crystals were investigated. It is shown that these phenomena have a relaxation character and the observed anomalies could be related to the small hole polarons dynamics with donor-acceptor compensation processes in lattice with tin and sulfur vacancies. To confirm it, we measured the dielectric properties of tin-enriched and sulfur-enriched crystals. It is shown that deviation from stoichiometry leads to a significant change in the low-temperature anomalies of dielectric losses. |
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ISSN: | 1063-777X 1090-6517 |
DOI: | 10.1063/10.0023893 |