Phase transitions in lead scandoniobate PbSc0.5Nb0.5O3

Phase transitions in lead scandoniobate PbSc0.5Nb0.5O3

Crystals of PbSc0.5Nb0.5O3 are investigated by x-ray diffraction and optical spectroscopy. It is found that the phase transformations in PbSc0.5Nb0.5O3 are governed by two mechanisms: displacive ferroelectric phase transitions and consistent rotations of oxygen octahedra.

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Veröffentlicht in:Physics of the solid state 2001-03, Vol.43 (3), p.508-512
Hauptverfasser: Abdulvakhidov, K. G., Mardasova, I. V., Myasnikova, T. P., Kogan, V. A., Spinko, R. I., Kupriyanov, M. F.
Format: Artikel
Sprache:eng
Schlagworte:
Crystals
Ferroelectricity
Phase transitions
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Zusammenfassung:Crystals of PbSc0.5Nb0.5O3 are investigated by x-ray diffraction and optical spectroscopy. It is found that the phase transformations in PbSc0.5Nb0.5O3 are governed by two mechanisms: displacive ferroelectric phase transitions and consistent rotations of oxygen octahedra.
ISSN:1063-7834
1090-6460
DOI:10.1134/1.1356129