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Ferroelectric Materials

Ferroelectrics have been used in real-world applications for a small number of decades, most notably for non-volatile data storage. For example, they have been used in a Sony Playstation and Japanese railway cards.

Example of a device using ferroelectric memory technology

Aims
Before you start
Introduction
The dipole moment
Polarisation
Switching polarisation (1)
Switching polarisation (2)
Measurement of polarisation
Fabrication of a KNO₃ ferroelectric capacitor
Temperature dependence of the Hysteresis loop
Barium titanate
Barium titanate and phase changes
Order of phase transitions
Ferroelectrics - why?
Summary
Questions
Going further

Begin

First created: August 2006. Last updated and converted to HTML5: April 2021.