Properties of Phase Transformation of Ferroelectric Thin Films with Surface Layers

Lian Cui, Xu Xu, JiXin Che, Zelong He, Huijie Xue, Tianquan Lv
2011 Journal of Modern Physics  
Using the generalized Ginzburg-Landau-Devonshire theory, the characteristics of phase transformation of a ferroelectric thin film with surface layers are investigated. We study the effect of the surface layer on the properties (coercive field, critical thickness) of a ferroelectric thin film. Our theoretical results show that the surface layer is likely to answer for the emergence of phase transformation. behind this trend is that whether fix the thickness of a film or the surface layer, the
more » ... rface layer, the emergence of the phase transformation is attributed to the large ratio of the surface layer to the volume of film. Moreover, with de-
doi:10.4236/jmp.2011.29125 fatcat:7ifipkfdajb7thmgogrdzdwxje