X-ray study of phase transitions in efrroelectric Na0.5Bi0.5TiO3

X-ray study of phase transitions in efrroelectric Na0.5Bi0.5TiO3

The temperature dependence of the lattice constant in Na0.5Bi0.5TiO3 single crystal was studied by means of X-ray diffraction. Two structural phase transitions were found in the temperature range 293-920 K: the cubic-to-tetragonal at 793 ± 5 K and the tetragonal-to-rhombohedral at 533 ± 5 K. The die...

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Veröffentlicht in:Ferroelectrics 1982-05, Vol.40 (1), p.75-77
Hauptverfasser: Zvirgzds, J. A., Kapostin, P. P., Zvirgzde, J. V., Kruzina, T. V.
Format: Artikel
Sprache:eng
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Zusammenfassung:The temperature dependence of the lattice constant in Na0.5Bi0.5TiO3 single crystal was studied by means of X-ray diffraction. Two structural phase transitions were found in the temperature range 293-920 K: the cubic-to-tetragonal at 793 ± 5 K and the tetragonal-to-rhombohedral at 533 ± 5 K. The dielectric permittivity was measured and a considerable dispersion was observed. The shift of the dielectric permittivity maximums are linear in coordinates 1/T = F(In f).
ISSN:0015-0193
1563-5112
DOI:10.1080/00150198208210600