Structural Phase Transitions in BaTiO 3 Studied via Perturbed Angular Correlations

Phase transitions in the ferroelectric perovskite BaTiO 3 were studied for 111 In-implanted poly-crystalline samples by measuring the electric field gradients by means of Perturbed Angular Correlation spectroscopy. The phase transitions between the orthorhombic ⇔ rhombohedral ⇔ tetragonal ⇔ cubic la...

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Published inZeitschrift für Naturforschung. A, A journal of physical sciences Vol. 55; no. 1-2; pp. 242 - 246
Main Authors Roth, J., Uhrmacher, M., Presa, R de la, Ziegeler, L., Lieb, K. P.
Format Journal Article
LanguageEnglish
Published 01.02.2000
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Summary:Phase transitions in the ferroelectric perovskite BaTiO 3 were studied for 111 In-implanted poly-crystalline samples by measuring the electric field gradients by means of Perturbed Angular Correlation spectroscopy. The phase transitions between the orthorhombic ⇔ rhombohedral ⇔ tetragonal ⇔ cubic lattices were investigated in 2 -10 K steps, for increasing and decreasing temperatures, in order to determine their hysteresis. The transition parameters are compared with results from measurements of the spontaneous polarization, electric susceptibility and neutron scattering.
ISSN:0932-0784
1865-7109
DOI:10.1515/zna-2000-1-243