Publication

Preisach modeling of ferroelectric pinched loops

Nava Setter, Dragan Damjanovic, Gilles Robert
2000
Journal Articles

Abstract

The Preisach approach is applied to model ferroelectric pinched (or constricted) loops. Starting from the existence of distributed switchable dipolar defects in the material and a corresponding distribution function, an analytical expression for the resulting ferroelectric loop is obtained. The corresponding hysteresis shape is indeed showing a clear pinching. Considerations about defect distribution expression and ways to characterize it from the loop are also made. It is finally suggested that such a description can be applied to any system exhibiting a pinched loop. (C) 2000 American Institute of Physics. [S0003-6951(00)02651-6].

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https://infoscience.epfl.ch/entities/publication/2d3b719a-17e9-4203-8a4e-c68ce0572ed2

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Nava Setter, Dragan Damjanovic, Gilles Robert
2000
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2d3b719a-17e9-4203-8a4e-c68ce0572ed2

About this result

Related concepts (23)

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Hysteresis is the dependence of the state of a system on its history. For example, a magnet may have more than one possible magnetic moment in a given magnetic field, depending on how the field changed in the past. Plots of a single component of the moment often form a loop or hysteresis curve, where there are different values of one variable depending on the direction of change of another variable. This history dependence is the basis of memory in a hard disk drive and the remanence that retains a record of the Earth's magnetic field magnitude in the past.

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Preisach modeling of ferroelectric pinched loops

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