Ferroelectricity of Perovskites under Pressure

Igor A. Kornev, L. Bellaiche, P. Bouvier, P.-E. Janolin, B. Dkhil, and J. Kreisel
Phys. Rev. Lett. 95, 196804 – Published 31 October 2005

Abstract

Ab initio simulations and experimental techniques are combined to reveal that, unlike what was commonly accepted for more than 30 years, perovskites and related materials enhance their ferroelectricity as hydrostatic pressure increases above a critical value. This unexpected high-pressure ferroelectricity is different in nature from conventional ferroelectricity because it is driven by an original electronic effect rather by long-range interactions.

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  • Received 9 August 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.196804

©2005 American Physical Society

Authors & Affiliations

Igor A. Kornev1,*, L. Bellaiche1, P. Bouvier2, P.-E. Janolin3, B. Dkhil3, and J. Kreisel4

  • 1Physics Department, University of Arkansas, Fayetteville, Arkansas 72701, USA
  • 2Laboratoire d’Electrochimie et de Physicochimie des Matériaux et des Interfaces, CNRS, BP 75, 38402 St. Martin d’Hères Cedex, France
  • 3Laboratoire Structures, Propriétés et Modélisation des Solides, CNRS-UMR8580, Ecole Centrale Paris, 92290 Châtenay-Malabry, France
  • 4Laboratoire des Matériaux et du Génie Physique, ENS de Physique de Grenoble, B.P.46, 38402 St. Martin d’Hères, France

  • *Also at Novgorod State University, Russia. Electronic address: ikornev@uark.edu

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Issue

Vol. 95, Iss. 19 — 4 November 2005

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