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

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2 Author(s)
Tao, Y.M. ; Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, People’s Republic of China ; Wu, Y.Z.

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Based on the Landau-Devonshire 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 barium strontium titanate (BST)50/50 thin films at 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.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 2 )