Domain Structures in Confined Nanoferroelectrics: Phase Field Approach

Details Domain Structures in Confined Nanoferroelectrics: Phase Field Approach Domain Structures in Confined Nanoferroelectrics: Phase Field Approach

2007-06-22

arxiv.org/abs/0706.3377v1

Physics

Condensed Matter

Materials Science

13 pages, 6 figures

Scientific paper

Phase field modeling of domain structures in ferroelectrics nanorods of different shape and sizes is presented. The vortex domain configurations in confined ferroelectrics have been explored by varying the ratio of the energies of electrostatic and elastic interactions. It is shown that a strong effect of the electrostatic interactions can cause the formation of 90o domain walls that do not satisfy the condition of strain compatibility. A good agreement between the results of phase field modeling and the results of atomistic calculations for nano ferroelectrics demonstrates that the phase field approach provides an effective tool for the analysis of domain structures in nano-ferroelectrics.

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