Publication

Fatigue and nonlinear dielectric response in sol-gel derived lead zirconate titanate thin films

Nava Setter, Dragan Damjanovic, Enrico Colla
1999
Journal Articles

Abstract

The evolution of switching polarization (P-r(s)) suppression, in Pb(Zr,Ti)O-3 films, induced by two different electric treatments is addressed in terms of the nonlinear dielectric response. The ac electric field dependence of dielectric permittivity was collected at different fatigue states and the Rayleigh law was used to interpret the fatigue dependence of the nonlinear response. This approach has enabled us to distinguish between two fatigue stares induced by the different electric treatments.

Official source

https://infoscience.epfl.ch/entities/publication/f266271b-434d-4014-a8e3-202e7eab9cca

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Nava Setter, Dragan Damjanovic, Enrico Colla
1999
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f266271b-434d-4014-a8e3-202e7eab9cca

About this result

Related concepts (26)

Dielectric

In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the material as they do in an electrical conductor, because they have no loosely bound, or free, electrons that may drift through the material, but instead they shift, only slightly, from their average equilibrium positions, causing dielectric polarisation.

Permittivity

In electromagnetism, the absolute permittivity, often simply called permittivity and denoted by the Greek letter ε (epsilon), is a measure of the electric polarizability of a dielectric. A material with high permittivity polarizes more in response to an applied electric field than a material with low permittivity, thereby storing more energy in the material. In electrostatics, the permittivity plays an important role in determining the capacitance of a capacitor.

Relative permittivity

The relative permittivity (in older texts, dielectric constant) is the permittivity of a material expressed as a ratio with the electric permittivity of a vacuum. A dielectric is an insulating material, and the dielectric constant of an insulator measures the ability of the insulator to store electric energy in an electrical field. Permittivity is a material's property that affects the Coulomb force between two point charges in the material. Relative permittivity is the factor by which the electric field between the charges is decreased relative to vacuum.

Related publications (12)

Fatigue and nonlinear dielectric response in sol-gel derived lead zirconate titanate thin films

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