Temperature-induced motion of interphase boundaries in confined ferroelectrics

A. Gordon; S. Dorfman; D. Fuks

doi:10.1080/13642810208211216

Temperature-induced motion of interphase boundaries in confined ferroelectrics

A. Gordon, S. Dorfman, D. Fuks

Department of Mathematics, Physics and Computer Science (Oranim Campus)

Research output: Contribution to journal › Article › peer-review

Abstract

Thermally induced dynamics of interphase boundaries are considered in confined ferroelectrics at a first-order phase transition. The size dependence of the temperature of the stability limit of the paraelectric phase and the phase transition temperature is calculated for a semi-infinite plate with one finite size (thickness). The velocity of the interphase boundary is presented as a function of its thickness for the thermally induced motion. The result is in agreement with the experiment on PbTiO₃. It is shown that close to the phase transition the interphase boundary should change the direction of its motion at a critical thickness of the sample, reflecting the first-order character of the ferroelectric phase transition.

Original language	English
Pages (from-to)	63-71
Number of pages	9
Journal	Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume	82
Issue number	1
DOIs	https://doi.org/10.1080/13642810208211216
State	Published - Jan 2002

ASJC Scopus subject areas

General Chemical Engineering
General Physics and Astronomy

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AB - Thermally induced dynamics of interphase boundaries are considered in confined ferroelectrics at a first-order phase transition. The size dependence of the temperature of the stability limit of the paraelectric phase and the phase transition temperature is calculated for a semi-infinite plate with one finite size (thickness). The velocity of the interphase boundary is presented as a function of its thickness for the thermally induced motion. The result is in agreement with the experiment on PbTiO3. It is shown that close to the phase transition the interphase boundary should change the direction of its motion at a critical thickness of the sample, reflecting the first-order character of the ferroelectric phase transition.

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Temperature-induced motion of interphase boundaries in confined ferroelectrics

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