Title
Revealing nanoscale structural TEM/HRTEM: application on ferroelectric ordering by PMN-PT relaxor ferroelectric Revealing nanoscale structural TEM/HRTEM: application on ferroelectric ordering by PMN-PT relaxor ferroelectric
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bucharest ,
Subject
Physics
Source (journal)
Journal of optoelectronics and advanced materials. - Bucharest
Volume/pages
10(2008) :9 , p. 2328-2333
ISSN
1454-4164
ISI
000259590400029
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
Nano-scale ordering may be revealed in transmission electron microscopy (TEM) by at least three techniques that will be presented in this work: selected area electron diffraction, conventional TEM and high-resolution TEM. Digital image processing is used to extract additional information from the high-resolution micrographs. The described methods are illustrated in a microstructural and compositional study of a 90%Pb(Mg1/3Nb2/3)O-3-10%PbTiO2 ceramic sample. High-resolution images reveal the presence of ordered compositional nano-domains, observable in two specific crystallographic orientations. Antiphase boundaries lying in the (111) planes separate them, while (100) and (111) facets separate the ordered domains from the disordered matrix.
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