Origin of ferroelectricity in perovskite oxides

  title={Origin of ferroelectricity in perovskite oxides},
  author={Ronald E. Cohen},
FERROELECTRIC materials are characterized by a switchable macroscopic polarization. Most technologically important ferroelectrics are oxides with a perovskite structure. The origin of their ferroelectric behaviour is unclear, however, and there is incomplete understanding of why similar, but chemically different, perovskites should display very different ferroelectric behaviour. The great sensitivity of ferroelectrics to chemistry, defects, electrical boundary conditions and pressure arises… CONTINUE READING

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