Domain stability of PbTiO3 thin films under anisotropic misfit strains: Phase-field simulations

The domain stability and domain structures of (001)-oriented PbTiO3 ferroelectric thin films subject to anisotropic in-plane strains were studied using phase-field method. Based on the simulation results, a room temperature domain/phase stability diagram was constructed for PbTiO3 thin films with th...

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Published inJournal of applied physics Vol. 104; no. 5
Main Authors Sheng, G., Zhang, J. X., Li, Y. L., Choudhury, S., Jia, Q. X., Liu, Z. K., Chen, L. Q.
Format Journal Article
LanguageEnglish
Published 01.09.2008
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ISSN0021-8979
1089-7550
DOI10.1063/1.2974093

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Summary:The domain stability and domain structures of (001)-oriented PbTiO3 ferroelectric thin films subject to anisotropic in-plane strains were studied using phase-field method. Based on the simulation results, a room temperature domain/phase stability diagram was constructed for PbTiO3 thin films with the in-plane strains ranging from −5% to 5%. The predicted diagram is both quantitatively and qualitatively different from those obtained using thermodynamic calculations based on a single-domain assumption.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2974093