Misfit strain–misfit strain diagram of epitaxial BaTiO3 thin films: Thermodynamic calculations and phase-field simulations

G. Sheng; J. X. Zhang; Y. L. Li; S. Choudhury; Q. X. Jia; Z. K. Liu; L. Q. Chen
December 2008
Applied Physics Letters;12/8/2008, Vol. 93 Issue 23, p232904
Academic Journal
The effect of anisotropic strains on the phase transitions and domains structures of BaTiO3 thin films was studied using both thermodynamic calculations and phase-field simulations. The misfit strain–misfit strain domain stability diagrams were predicted. The similarity and significant differences between the diagrams from thermodynamic calculations assuming single domains and from phase-field simulations were analyzed. Typical domain structures as a result of anisotropic misfit strains are presented.


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