Appropriate value of permittivity for depolarization field and universal instability of insulating ferroelectric phase in single-domain state

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Abstract

We redefine the permittivity for the depolarization field and show that in most situations the permittivity for depolarization field should be unity, and show a proper expression for depolarization field. Based on this expression a generic consideration of ferroelectrics undergoing the first order transition shows that free standing two-dimensional ferroelectric phase cannot exist in a single domain state without a non-dielectric screening mechanism.

Original languageEnglish
Pages (from-to)35-38
Number of pages4
JournalFerroelectrics
Volume406
Issue number1
DOIs
Publication statusPublished - Dec 1 2010
Event12th International Meeting on Ferroelectricity, IMF-12 and the 18th IEEE International Symposium on Applications of Ferroelectrics, ISAF-18 - Xi'an, China
Duration: Aug 23 2009Aug 27 2009

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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