Abstract
The constants of the phenomenological potential of SrTiO3 are calculated allowing for recent experimental data. The α11, α12, and t 44 constants are refined by more than one order of magnitude as compared to the earlier values. The T-P phase diagrams for the case of the uniaxial [001] and [110] loading are calculated. The temperature vs. misfit-strain phase diagram for a thin SrTiO3 film is constructed, in which pure ferroelectric phases exist at low temperatures.
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Original Russian Text © V.B. Shirokov, Yu.I. Yuzyuk, V.V. Lemanov, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 5, pp. 972–978.
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Shirokov, V.B., Yuzyuk, Y.I. & Lemanov, V.V. Phenomenological description of thin SrTiO3 films. Phys. Solid State 51, 1025–1032 (2009). https://doi.org/10.1134/S1063783409050229
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DOI: https://doi.org/10.1134/S1063783409050229