Account for Mutual Influence of Electrical, Elastic, and Thermal Phenomena for Ferroelectric Domain Wall Modeling

The theoretical model of the ferroelectric domain wall motion has been developed. It is demonstrated that for a proper phenomenon description it is necessary to consider the thermoelectroelasticity gradient terms. It is shown that in the linear approximation the general solution of three-dimensional...

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Bibliographic Details
Published in:Ferroelectrics 2013-01, Vol.442 (1), p.10-17
Main Authors: Starkov, A. S., Pakhomov, O. V., Starkov, I. A.
Format: Article
Language:English
Subjects:
approximate boundary conditions
Approximation
Boundaries
Boundary conditions
domain switching
domain wall
Ferroelectric
Ferroelectric domains
Ferroelectrics
Half spaces
Materials elasticity
Mathematical analysis
Mathematical models
SPM
Three dimensional
Walls
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Summary:The theoretical model of the ferroelectric domain wall motion has been developed. It is demonstrated that for a proper phenomenon description it is necessary to consider the thermoelectroelasticity gradient terms. It is shown that in the linear approximation the general solution of three-dimensional problem in transversely isotropic thermoelectroelastic media can be obtained by means of five newly introduced harmonic potential functions. As an example of the proposed model applicability, the electroelastic field induced by a sphere (SPM tip) located near a plane boundary of two half-spaces is considered and described.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2013.773854