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Quantitative Analysis of Displacement at 90° Domain Boundaries In BaTiO3 and PbTiO3

Published online by Cambridge University Press:  10 February 2011

Frances M. Ross ,
Roar Kilaas ,
Etienne Snoeck ,
Martin Hÿtch ,
Alain Thorel  and
Laurent Normand
Frances M. Ross
Affiliation:
National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
Roar Kilaas
Affiliation:
National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
Etienne Snoeck
Affiliation:
CEMES-CNRS, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex, France
Martin Hÿtch
Affiliation:
CECM-CNRS, 15 rue G. Urbain, 94407 Vitry-sur-Seine, France
Alain Thorel
Affiliation:
Centre des Matériaux P-M. Fourt de l'ENSMP, BP 87, 91003 Evry Cedex, France
Laurent Normand
Affiliation:
Centre des Matériaux P-M. Fourt de l'ENSMP, BP 87, 91003 Evry Cedex, France
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Abstract

In this paper we discuss the measurement of long range displacement fields associated with 90° domain boundaries in the ferroelectric ceramics BaTiO3 and PbTiO3. We have calculated displacement fields from high resolution lattice images by two techniques: firstly, measuring the positions of peaks in the images, and secondly, using a geometric phase analysis technique to magnify small lattice distortions. We describe the results and consider the complementary use of Fresnel contrast analysis to characterize local strain and electric fields near the boundaries.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 466: Symposium G – Atomic Resolution Microscopy of Surfaces and Interfaces , 1996 , 245
Copyright
Copyright © Materials Research Society 1997

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References

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