Beanland, R. and Thomas, Pam A. (2011) Imaging planar tetragonal sheets in rhombohedral Na0.5Bi0.5TiO3 using transmission electron microscopy. Scripta Materialia, Vol.65 (No.5). pp. 440-443. doi:10.1016/j.scriptamat.2011.05.031

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Abstract

Planar nanometre-scale inclusions in single-crystal Na(0.5)Bi(0.5)TiO(3) have been investigated using transmission electron microscopy at room temperature. In diffraction patterns, they give rise to weak extra spots and diffuse contrast. Here we show that they are visible in diffraction contrast images, giving a new route to directly observe subtly different structures in perovskites. Visibility is determined by their structure and diffraction vector. We show that single-crystal a(-)a(-)a(-) Na(0.5)Bi(0.5)TiO(3) contains an inhomogeneous distribution of nanometre-scale {0 0 1} platelets of tetragonal a(0)a(0)c(+) material.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Transmission electron microscopy, Electrons -- Diffraction, Ferroelectric crystals, Electronic ceramics, Crystals -- Defects
Journal or Publication Title:	Scripta Materialia
Publisher:	Pergamon
ISSN:	13596462
Official Date:	September 2011
Dates:	Date Event September 2011 Published
Volume:	Vol.65
Number:	No.5
Page Range:	pp. 440-443
DOI:	10.1016/j.scriptamat.2011.05.031
Status:	Peer Reviewed
Publication Status:	Published

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