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The Ferroeletricity of Pb(Zr,Ti)O3 Films Grown on Compressive Substrates
Abstract:
The modified Landau-Devonshire thermodynamic theory has been used to investigate the ferroelectricity of Pb(Zr0.7, Ti0.3)O3 film grown on MgO substrate. A set of gradient thermal stresses is imposed on the films. The stress-temperature diagram, the spontaneous polarization and the dielectric susceptibility at 25°C on the stress were computed. Structure transitions of first order can be driven by the stress. The mean of out-plane spontaneous polarization and dielectric susceptibility on the temperature were also predicted.
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2507-2511
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Online since:
May 2011
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© 2011 Trans Tech Publications Ltd. All Rights Reserved
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