Direct Observation of Ferrielectricity at Ferroelastic Domain Boundaries in CaTiO3 by Electron Microscopy

Van Aert, Sandra and Turner, Stuart and Delville, Rémi and Schryvers, Dominique and Van Tendeloo, Gustaaf and Salje, Ekhard K. H. (2011) Direct Observation of Ferrielectricity at Ferroelastic Domain Boundaries in CaTiO3 by Electron Microscopy. Advanced Materials, 24 (4). pp. 523-527. DOI 10.1002/adma.201103717

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Abstract

High-resolution aberration-corrected transmission electron microscopy aided by statistical parameter estimation theory is used to quantify localized displacements at a (110) twin boundary in orthorhombic CaTiO3. The displacements are 3–6 pm for the Ti atoms and confined to a thin layer. This is the first direct observation of the generation of ferroelectricity by interfaces inside this material which opens the door for domain boundary engineering. Graphical Abstract: http://onlinelibrary.wiley.com/store/10.1002/adma.201103717/asset/image_m/mcontent.jpg?v=1&s=833d8771f847e356acb7c65dffc61a359098e66f

Item Type:	Article
Uncontrolled Keywords:	2011AREP; IA63;
Subjects:	03 - Mineral Sciences
Divisions:	03 - Mineral Sciences
Journal or Publication Title:	Advanced Materials
Volume:	24
Page Range:	pp. 523-527
Identification Number:	10.1002/adma.201103717
Depositing User:	Sarah Humbert
Date Deposited:	25 Feb 2012 12:11
Last Modified:	23 Jul 2013 10:03
URI:	http://eprints.esc.cam.ac.uk/id/eprint/2394

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