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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.

	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.