Effects of anisotropic in-plane strains on the phase diagram of BaxSr1-xTiO3 thin film

Details Effects of anisotropic in-plane strains on the phase diagram of BaxSr1-xTiO3 thin film Effects of anisotropic in-plane strains on the phase diagram of BaxSr1-xTiO3 thin film

2007-12-06

arxiv.org/abs/0712.0861v1

Journal Applied Physics 101,024111(2007)

Physics

Condensed Matter

Materials Science

12 pages, 4 figures

Scientific paper

10.1063/1.2430642

Based on Landau-Devonshire (LD) phenomenological theory, phase diagram of epitaxial BST50/50 thin films on anisotropic in-plane strains is investigated. Different from BaTiO3 thin films, the paraelectric phase appears under the anisotropic misfit strains on BST50/50 thin films at the room temperature. The pyroelectric property of the BST films is also calculated, we find that the position of pyroelectric peak greatly depends on anisotropic misfit strains. Keywords: anisotropic in-plane strains; BST thin films; phase diagram

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