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The heat capacity of thin ferroelectric films near the second-order phase transition

S.V. Pavlov, O.Yu. Polyakova

Moscow University Physics Bulletin 2000. 55. N 6. P. 55

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Annotation

Within the framework of the Landau phenomenological model, the temperature and sample-thickness dependences of the heat capacity of thin uniaxial ferroelectric films near the second-order phase transition were studied. The heat capacity jump was found to decrease, diffuse, and shift to lower temperatures as the thickness of thin films decreased. At a certain thin-film thickness, the heat capacity anomaly disappeared (for instance, for triglycine sulfate, at a thickness of several nanometers).

Authors
S.V. Pavlov, O.Yu. Polyakova
Department of General Physics for Natural Science Faculties, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Issue 6, 2000

Moscow University Physics Bulletin

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