Ferroelectricity in ultrathin perovskite films

Dillon D. Fong; G. Brian Stephenson; Stephen K. Streiffer; Jeffrey A. Eastman; Orlando Aucielo; Paul H. Fuoss; Carol Thompson

doi:10.1126/science.1098252

Ferroelectricity in ultrathin perovskite films

Dillon D. Fong, G. Brian Stephenson, Stephen K. Streiffer, Jeffrey A. Eastman, Orlando Aucielo, Paul H. Fuoss, Carol Thompson

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1174 Scopus citations

Abstract

Understanding the suppression of ferroelectricity in perovskite thin films is a fundamental issue that has remained unresolved for decades. We report a synchrotron x-ray study of lead titanate as a function of temperature and film thickness for films as thin as a single unit cell. At room temperature, the ferroetectric phase is stable for thicknesses down to 3 unit cells (1.2 nanometers). our results imply that no thickness limit is imposed on practical devices by an intrinsic ferroelectric size effect.

Original language	English
Pages (from-to)	1650-1653
Number of pages	4
Journal	Science
Volume	304
Issue number	5677
DOIs	https://doi.org/10.1126/science.1098252
State	Published - Jun 11 2004
Externally published	Yes

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abstract = "Understanding the suppression of ferroelectricity in perovskite thin films is a fundamental issue that has remained unresolved for decades. We report a synchrotron x-ray study of lead titanate as a function of temperature and film thickness for films as thin as a single unit cell. At room temperature, the ferroetectric phase is stable for thicknesses down to 3 unit cells (1.2 nanometers). our results imply that no thickness limit is imposed on practical devices by an intrinsic ferroelectric size effect.",

author = "Fong, {Dillon D.} and Stephenson, {G. Brian} and Streiffer, {Stephen K.} and Eastman, {Jeffrey A.} and Orlando Aucielo and Fuoss, {Paul H.} and Carol Thompson",

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AU - Fong, Dillon D.

AU - Stephenson, G. Brian

AU - Streiffer, Stephen K.

AU - Eastman, Jeffrey A.

AU - Aucielo, Orlando

AU - Fuoss, Paul H.

AU - Thompson, Carol

PY - 2004/6/11

Y1 - 2004/6/11

N2 - Understanding the suppression of ferroelectricity in perovskite thin films is a fundamental issue that has remained unresolved for decades. We report a synchrotron x-ray study of lead titanate as a function of temperature and film thickness for films as thin as a single unit cell. At room temperature, the ferroetectric phase is stable for thicknesses down to 3 unit cells (1.2 nanometers). our results imply that no thickness limit is imposed on practical devices by an intrinsic ferroelectric size effect.

AB - Understanding the suppression of ferroelectricity in perovskite thin films is a fundamental issue that has remained unresolved for decades. We report a synchrotron x-ray study of lead titanate as a function of temperature and film thickness for films as thin as a single unit cell. At room temperature, the ferroetectric phase is stable for thicknesses down to 3 unit cells (1.2 nanometers). our results imply that no thickness limit is imposed on practical devices by an intrinsic ferroelectric size effect.

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JO - Science

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Ferroelectricity in ultrathin perovskite films

Abstract

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