Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Teaching & Learning Packages Ferroelectric Materials Aims
Ferroelectric Materials AimsBefore you startIntroductionThe dipole momentPolarisationSwitching polarisation (1)Switching polarisation (2)Measurement of polarisationFabrication of a KNO3 ferroelectric capacitorTemperature dependence of the Hysteresis loopBarium titanateBarium titanate and phase changesOrder of phase transitionsFerroelectrics - why?SummaryQuestionsGoing further
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Aims

After completing this TLP, you should:

  • Be aware of the atomic requirements for ferroelectricity.
  • Understand how this atomic structure leads to spontaneous polarisation, and how this polarisation can be switched.
  • Understand how this polarisation leads to the interesting electrical properties displayed by ferroelectrics.
  • Understand how these properties are made use of in today's technologies.
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