Dynamics of Phase Transition in 0.4NBT-0.4ST-0.2PT Solid Solution
Autor: | M. Dunce, Maija Antonova, A. Brilingas, Andris Sternberg, Š. Bagdzevičius, J. Banys, Maksim Ivanov, Eriks Birks, Š. Svirskas |
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Rok vydání: | 2012 |
Předmět: |
Quantum phase transition
Phase transition Materials science Condensed matter physics Dielectric Condensed Matter Physics Ferroelectricity Electronic Optical and Magnetic Materials Dielectric spectroscopy Control and Systems Engineering Phase (matter) Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering Dispersion (chemistry) Solid solution |
Zdroj: | Integrated Ferroelectrics. 134:81-87 |
ISSN: | 1607-8489 1058-4587 |
DOI: | 10.1080/10584587.2012.665300 |
Popis: | In this paper we present dielectric spectroscopy results of NBT-(0.6-x)ST-xPT with x = 0.2 solid solution. Dielectric investigations clearly showed a relaxor—normal ferroelectric phase transition at TPT = 419 K and low temperature and low frequency dispersion similar to coexistence of dipolar glass and ferroelectric phase. The mean relaxation time above the phase transition follows Vogel—Fulcher law with following parameters: E A = 0.179 eV, τ 0 = 3.39·10−14 s, T VF = 223 K. |
Databáze: | OpenAIRE |
Externí odkaz: |
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