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Europhysics News

, Volume 28, Issue 1, pp 18–20 | Cite as

Polarization as a Berry Phase

  • R. Resta
Features

Abstract

The macroscopic polarization of a crystalline dielectric is best defined as a Berry phase of the electronic Bloch wavefunctions, a feature that is best exemplified by the spontaneous polarization of a ferroelectric crystal for which a microscopic theory was previously unavailable.

Keywords

Spontaneous Polarization Microscopic Theory Berry Phase Ferroelectric Crystal Macroscopic Polarization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© European Physical Society in Cooperation with Springer-Verlag 1997

Authors and Affiliations

  • R. Resta
    • 1
  1. 1.Dipartimento di Fisica TeoricaUniversità di TriesteGermany

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