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Pressure-Induced Migration of Ferroelectric Interfaces

Published online by Cambridge University Press:  15 February 2011

Alex Gordon  and
Simon Dorfman
Alex Gordon
Affiliation:
Department of Mathematics and Physics, Haifa University at Oranim, Tivon 36910, Israel
Simon Dorfman
Affiliation:
Department of Physics, Israel Institute of Technology - Technion, 32000 Haifa, Israel
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Abstract

The study of the migration of the first-order paraelectric-ferroelectric interfaces in BaTiO3 under the hydrostatic pressure is provided in the framework of the time-dependent Ginzburg-Landau theory. The analytical solution describing the interphase boundary is applied for the calculations of its width and velocity at different pressures. The calculations are based on the experimental data for BaTiO3. The parameters of the power law of the temperature and pressure dependences of the interface velocity under the temperature and pressure were obtained. Using the BaTiO3 example we illustrate the ability of the suggested approach in the description of the kinetics of the first-order ferroelectric phase transition in perovskites.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 357: Symposium C – Structure and Properties of Interfaces in Ceramics , 1994 , 307
Copyright
Copyright © Materials Research Society 1995

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