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首页> 外文期刊>Physica, B. Condensed Matter >A theoretical investigation of the influence of the surface effect on the ferroelectric property of strained barium titanate film
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A theoretical investigation of the influence of the surface effect on the ferroelectric property of strained barium titanate film

机译：表面效应对应变钛铝膜铁电性能影响的理论研究

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The influence of the surface effect on the ferroelectric property of strained barium titanate film has been investigated. In this study, based on time-dependent Ginsburg-Landau-Devonshire thermodynamic theory, the surface effects have been simulated by introducing a surface constant, which leads to the strained BaTiO3 film consisting of inner tetragonal core and gradient lattice strain layer. Further, surface effects produce a depolarization field which has a dominant effect on the ferroelectric properties of the films. The spontaneous polarization, dielectric properties and ferroelectric hysteresis loop of BaTiO3 film are calculated under different boundary conditions. Theoretical and experimental results for strained BaTiO3 film are compared and discussed.
机译：研究了表面影响对应变钛酸钡膜铁电性的影响。 在这项研究中，基于时间依赖的人参 - Landau-Demonshire热力学理论，通过引入表面常数来模拟表面效应，这导致由内部四方芯和梯度晶格应变层组成的应变BATIO3膜。 此外，表面效果产生一种去极化领域，其对薄膜的铁电性质具有显着效果。 在不同的边界条件下计算BATIO3膜的自发极化，介电性能和铁电滞圈环。 比较和讨论应变BATIO3膜的理论和实验结果。

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