Ising model for a ferroelectric phase transition in a system of interacting small particles

An approach based on the Ising model has been proposed for describing a ferroelectric phase transition in a system of interacting identical small particles. It has been found that the shift of the phase transition temperature with respect to the transition point in a bulk sample is affected by both...

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Bibliographic Details
Published inPhysics of the solid state Vol. 52; no. 3; pp. 620 - 624
Main Authors Pirozerskiĭ, A. L., Charnaya, E. V.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.03.2010
Springer
Subjects
Analysis
Low-Dimensional Systems and Surface Physics
Nanotechnology
Physics
Physics and Astronomy
Solid State Physics
Ising Model
Ferroelectric Property
Barium Titanate
Phase Transition Temperature
Short Range Potential
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Summary:An approach based on the Ising model has been proposed for describing a ferroelectric phase transition in a system of interacting identical small particles. It has been found that the shift of the phase transition temperature with respect to the transition point in a bulk sample is affected by both the size effects due to the smallness of the particles and their interaction with each other. The behavior of the dependence of the phase transition temperature on the distance between particles is determined by the nature of the interparticle interaction. An analysis has demonstrated that the interaction between small particles should be taken into account in the interpretation of the ferroelectric properties of nanocomposite materials.
ISSN:1063-7834
1090-6460
DOI:10.1134/S106378341003025X