Combined effect of the transition layer and interfacial coupling on the properties of ferroelectric bilayer film |
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| Authors: | Sun Pu-Nan Cui Lian Lü Tian-Quan |
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| Institution: | Center of Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China; Physics Department, Heilongjiang University, Harbin 150080, China |
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| Abstract: | Within the framework of modified Ginzburg--Landau--Devonshire
phenomenological theory, a ferroelectric bilayer film with a
transition layer within each constituent film and an interfacial
coupling between two materials has been studied. Properties
including the Curie temperature and the spontaneous polarization of
a bilayer film composed of two equally thick ferroelectric
constituent films are discussed. The results show that the combined
effect of the transition layer and the interfacial coupling plays an
important role in explaining the interesting behaviour of
ferroelectric multilayer structures consisting of two ferroelectric
materials. |
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| Keywords: | ferroelectric bilayer film spontaneous polarization Curie temperature phase transition |
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