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

Yukio Watanabe

doi:10.1080/00150193.2010.484328

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

Yukio Watanabe

Condensed Matter Physics

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

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 language	English
Pages (from-to)	35-38
Number of pages	4
Journal	Ferroelectrics
Volume	406
Issue number	1
DOIs	https://doi.org/10.1080/00150193.2010.484328
Publication status	Published - Dec 1 2010
Event	12th International Meeting on Ferroelectricity, IMF-12 and the 18th IEEE International Symposium on Applications of Ferroelectrics, ISAF-18 - Xi'an, China Duration: Aug 23 2009 → Aug 27 2009

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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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.",

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N2 - 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.

AB - 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.

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DO - 10.1080/00150193.2010.484328

M3 - Conference article

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Y2 - 23 August 2009 through 27 August 2009

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