Ferroelectric Materials

Ferroelectrics are an important device in today’s world. They are useful both as capacitors, for example in camera flashes, or as non-volatile memory storage. The memory use of which you are most likely to be aware is in the Playstation 2.

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

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First created: August 2006. Last updated: December 2006.