Structurally frustrated relaxor ferroelectric behavior in CaCu3Ti4O12

Yun Liu; Ray L. Withers; Xiao Yong Wei

doi:10.1103/PhysRevB.72.134104

Structurally frustrated relaxor ferroelectric behavior in CaCu3Ti4O12

Yun Liu^*, Ray L. Withers, Xiao Yong Wei

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

124 Citations (Scopus)

Abstract

Direct diffraction evidence for structurally frustrated relaxor ferroelectric behavior in the form of one-dimensionally correlated, off-center displacements of Ti ions within the TiO6 octahedra of CaCu3Ti4O12 (CCTO) has been obtained. When coupled with the observation of a ferroelectric effect, important implications for the understanding of the extraordinary dielectric properties of CCTO arise. That the incipient ferroelectric behavior is correlated only along one-dimensional 001 columns of TiO6 octahedra in the absence of an applied electric field offers a crucial insight into the underlying nature of CCTO and suggests the existence of a unique class of structurally frustrated, ferroelectric relaxors.

Original language	English
Article number	134104
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.72.134104
Publication status	Published - 1 Oct 2005

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title = "Structurally frustrated relaxor ferroelectric behavior in CaCu3Ti4O12",

abstract = "Direct diffraction evidence for structurally frustrated relaxor ferroelectric behavior in the form of one-dimensionally correlated, off-center displacements of Ti ions within the TiO6 octahedra of CaCu3Ti4O12 (CCTO) has been obtained. When coupled with the observation of a ferroelectric effect, important implications for the understanding of the extraordinary dielectric properties of CCTO arise. That the incipient ferroelectric behavior is correlated only along one-dimensional 001 columns of TiO6 octahedra in the absence of an applied electric field offers a crucial insight into the underlying nature of CCTO and suggests the existence of a unique class of structurally frustrated, ferroelectric relaxors.",

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AU - Liu, Yun

AU - Withers, Ray L.

AU - Wei, Xiao Yong

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N2 - Direct diffraction evidence for structurally frustrated relaxor ferroelectric behavior in the form of one-dimensionally correlated, off-center displacements of Ti ions within the TiO6 octahedra of CaCu3Ti4O12 (CCTO) has been obtained. When coupled with the observation of a ferroelectric effect, important implications for the understanding of the extraordinary dielectric properties of CCTO arise. That the incipient ferroelectric behavior is correlated only along one-dimensional 001 columns of TiO6 octahedra in the absence of an applied electric field offers a crucial insight into the underlying nature of CCTO and suggests the existence of a unique class of structurally frustrated, ferroelectric relaxors.

AB - Direct diffraction evidence for structurally frustrated relaxor ferroelectric behavior in the form of one-dimensionally correlated, off-center displacements of Ti ions within the TiO6 octahedra of CaCu3Ti4O12 (CCTO) has been obtained. When coupled with the observation of a ferroelectric effect, important implications for the understanding of the extraordinary dielectric properties of CCTO arise. That the incipient ferroelectric behavior is correlated only along one-dimensional 001 columns of TiO6 octahedra in the absence of an applied electric field offers a crucial insight into the underlying nature of CCTO and suggests the existence of a unique class of structurally frustrated, ferroelectric relaxors.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 13

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Structurally frustrated relaxor ferroelectric behavior in CaCu3Ti4O12

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