Title
Direct observation of ferrielectricity at ferroelastic domain boundaries in <tex>$CaTiO_{3}$</tex> by electron microscopy Direct observation of ferrielectricity at ferroelastic domain boundaries in <tex>$CaTiO_{3}$</tex> by electron microscopy
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Weinheim
Subject
Physics
Chemistry
Source (journal)
Advanced materials. - Weinheim
Volume/pages
24(2012) :4 , p. 523-527
ISSN
0935-9648
ISI
000299156400011
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
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 36 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.
E-info
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