Scaling of the Coercive Field in Ferroelectrics at the Nanoscale

Authors

R. V. Gaynutdinov, Institute of Crystallography, Russian Academy of Science, MoscowFollow
M. Minnekaev, NRNU Moscow Engineering Physics Institute
S. Mitko, NT-MDT Co., Moscow
A. L. Tolstikhina, Institute of Crystallography, Russian Academy of Science, Moscow
A. Zenkevich, NRNU Moscow Engineering Physics Institute
Stephen Ducharme, University of Nebraska-LincolnFollow
Vladimir M. Fridkin, Institute of Crystallography, Russian Academy of Sciences, MoscowFollow

Date of this Version

2013

Citation

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

Comments

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

Abstract

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.