Misfit strain-misfit strain diagram of epitaxial BaTiO(3) thin films: thermodynamic calculations and phase-field simulations

Journal Article · Thu Jan 01 04:00:00 EST 2009 · Applied Physics Letters

OSTI ID:956467

Jia, Quanxi ^[1]; Sheng, G ^[2]; Zhang, J X ^[2]; Li, Y L ^[2]; Choudhury, S ^[2]; Liu, Z K ^[2]; Chen, L Q ^[2]

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1. Los Alamos National Laboratory
2. PENN STATE UNIV

The effect of anisotropic strains on the phase transitions and domains structures of BaTi03 thin films was studied using both thermodynamic calculations and phase-field simulations. The misfit strain -misfit strain domain stability diagrams, i.e. the graphical representations of stable ferroelectric phases and domain structures as a function of strains, 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.

• Research Organization: Los Alamos National Laboratory (LANL)
• Sponsoring Organization: DOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 956467
• Report Number(s): LA-UR-09-00048; LA-UR-09-48
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DOMAIN STRUCTURE
STABILITY
STRAINS
THERMODYNAMICS
THIN FILMS