Anomalies in the slow polarization kinetics of a ferroelectric relaxor in the temperature region of a diffuse phase transition

Autor(en): Gladkii, VV
Kirikov, VA
Pronina, EV
Volk, TR
Pankrath, R
Wolecke, M
Stichwörter: Physics; Physics, Condensed Matter; RELAXATION; STRONTIUM BARIUM NIOBATE
Erscheinungsdatum: 2001
Herausgeber: AMER INST PHYSICS
Journal: PHYSICS OF THE SOLID STATE
Volumen: 43
Ausgabe: 11
Startseite: 2140
Seitenende: 2145
Zusammenfassung: 
It is shown experimentally in the specific example of Cr-doped barium-strontium niobate that the anomalies in the infralow-frequency dielectric properties characteristic of a ferroelectric relaxor persist over the whole temperature region of the diffuse phase transition and decrease gradually with increasing temperature. Experimental data are presented on the anomalous quasi-static dielectric hysteresis loops, the slow polarization kinetics, and the anomalously broad energy-distribution spectra of potential barriers. The anomalies are a signature and a quantitative measure of the structural disorder typical of a relaxor. (C) 2001 MAIK ``Nauka/Interperiodica''.
ISSN: 10637834
DOI: 10.1134/1.1417195

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