Research Papers in Physics and Astronomy


Date of this Version



Published in JETP Letters 98:6 (2013), pp. 339–341; doi: 10.1134/S0021364013190041


Copyright © 2013 Pleiades Publishing, Inc.; published by Springer Verlag. Used by permission.


The scaling of the coercive field in ferroelectric films at the nanoscale is investigated experimentally. The scaling in the films of copolymer vinylidene fluoride and BaTiO3 with thickness equal by the order of value to the critical domain nucleus size 1–10 nm reveals deviation from the well-known Kay–Dunn law. At this thickness region coercive field does not depend on thickness and coincides with Landau–Ginzburg–Devonshire value.