Determination of domain and domain wall formation at ferroic transitions

D. M. Hatch; W. Cao

doi:10.1080/00150199908014792

Determination of domain and domain wall formation at ferroic transitions

D. M. Hatch, W. Cao

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

Abstract

Through the example of the Pm3m - I4 / mmm structural phase transition in LaAg_1-x In_x (x-0.2), a general procedure is given in this paper to model and predict the domain pair and domain wall formation using a group theoretical approach and a Landau-Ginzburg type continuum theory. The heterogeneous order parameter profile can then be calculated by using an initial value scan method based on the equilibrium conditions of the order parameter and the minimization of the total elastic energy. The dependence of the domain wall profile on different expansion coefficients of the free energy is demonstrated numerically in several examples.

Original language	English (US)
Pages (from-to)	1-10
Number of pages	10
Journal	Ferroelectrics
Volume	222
Issue number	1-4
DOIs	https://doi.org/10.1080/00150199908014792
State	Published - Jan 1 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150199908014792

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abstract = "Through the example of the Pm3m - I4 / mmm structural phase transition in LaAg1-x Inx (x-0.2), a general procedure is given in this paper to model and predict the domain pair and domain wall formation using a group theoretical approach and a Landau-Ginzburg type continuum theory. The heterogeneous order parameter profile can then be calculated by using an initial value scan method based on the equilibrium conditions of the order parameter and the minimization of the total elastic energy. The dependence of the domain wall profile on different expansion coefficients of the free energy is demonstrated numerically in several examples.",

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N2 - Through the example of the Pm3m - I4 / mmm structural phase transition in LaAg1-x Inx (x-0.2), a general procedure is given in this paper to model and predict the domain pair and domain wall formation using a group theoretical approach and a Landau-Ginzburg type continuum theory. The heterogeneous order parameter profile can then be calculated by using an initial value scan method based on the equilibrium conditions of the order parameter and the minimization of the total elastic energy. The dependence of the domain wall profile on different expansion coefficients of the free energy is demonstrated numerically in several examples.

AB - Through the example of the Pm3m - I4 / mmm structural phase transition in LaAg1-x Inx (x-0.2), a general procedure is given in this paper to model and predict the domain pair and domain wall formation using a group theoretical approach and a Landau-Ginzburg type continuum theory. The heterogeneous order parameter profile can then be calculated by using an initial value scan method based on the equilibrium conditions of the order parameter and the minimization of the total elastic energy. The dependence of the domain wall profile on different expansion coefficients of the free energy is demonstrated numerically in several examples.

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Determination of domain and domain wall formation at ferroic transitions

Abstract

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