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Surface ferroelectric phase transition in multilayer polymer Langmuir films |
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| Authors: | T. V. Murzina T. V. Misyuryaev Yu. G. Fokin S. P. Palto S. G. Yudin O. A. Aktsipetrov |
| Affiliation: | (1) Department of Physics, Moscow State University, Moscow, 117234, Russia;(2) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow, 117333, Russia |
| Abstract: | The ferroelectric phase transition on the free surface of a polymer ferroelectric Langmuir-Blodgett film was studied by the optical second harmonic generation (SHG) technique. A hysteresis in the temperature dependence of the SHG intensity observed for a multilayer film of a poly(vinylidene fluoride)-trifluoroethylene copolymer in the vicinity of T≈15°C is a manifestation of the first-order ferroelectric phase transition in the topmost surface monolayer of the film. |
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