title: Dynamical properties of a ferroelectric capacitor observed through nonlinear time series analysis.
abstract: By data analysis the ordinary differential equation for the description of an experimental electric resonance circuit with nonlinear capacitor is derived. Triglycine sulfate (TGS) was used as nonlinear dielectric material. This is the most thoroughly investigated ferroelectric with a second order phase transition. Its static dielectric small signal behavior is well described in the framework of the Landau theory, yielding a Duffing-type ordinary differential equation as a model equation of the circuit. Data analysis allows us to check carefully the validity of this model and to determine required corrections of this simplified equation. (c) 1998 American Institute of Physics.
authors.affiliation: Max Planck Institute for Physics of Complex Systems, Nothnitzer Str. 38, D 01187 Dresden, Germany.
authors.forename: Rainer
authors.initials: R
authors.lastname: Hegger
authors.forename: Holger
authors.initials: H
authors.lastname: Kantz
authors.forename: Frank
authors.initials: F
authors.lastname: Schmuser
authors.forename: Martin
authors.initials: M
authors.lastname: Diestelhorst
authors.forename: Ralf-Peter
authors.initials: RP
authors.lastname: Kapsch
authors.forename: Horst
authors.initials: H
authors.lastname: Beige