title: Intrinsic ferroelectric coercive field
abstract: The Landau-Ginzburg theory of ferroelectricity predicts the intrinsic coercive field for polarization reversal, but the observed extrinsic coercive field is always much smaller as a result of nucleation, dynamic processes not covered by the static theory. We have realized the intrinsic coercive field for the first time, in two-dimensional Langmuir-Blodgett polymer films as thin as 1 nm. The measured coercive field is in good agreement with the theoretical intrinsic value, exhibits the expected dependence on temperature, and does not depend on thickness below 15 nm.
authors.affiliation: Department of Physics and Astronomy, Center for Materials Research and Analysis, University of Nebraska, Lincoln, Nebraska 68588-0111, USA.
authors.initials: S
authors.lastname: Ducharme
authors.initials: VM
authors.lastname: Fridkin
authors.initials: AV
authors.lastname: Bune
authors.initials: SP
authors.lastname: Palto
authors.initials: LM
authors.lastname: Blinov
authors.initials: NN
authors.lastname: Petukhova
authors.initials: SG
authors.lastname: Yudin