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Local Atomic Structure of Plzt Determined by Real-Space Refinement of Neutron-Powder-Diffraction Data

Published online by Cambridge University Press:  22 February 2011

S. Teslic  and
T. Egami
S. Teslic
Affiliation:
Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272
T. Egami
Affiliation:
Department of Materials Science and Engineering, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272
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Abstract

The local atomic structure of (Pb1-x Lax)( Zry Ti1.y)1.x/4O3 (PLZT) has been examined by means of pair-distribution function (PDF) analysis derived from neutron powder diffraction. We find that atoms are displaced from the atomic sites in the average periodic structure by a significant amount. The directions and magnitudes of the atomic displacements in PLZT are very similar to those found in Pb(Mg1/3Nb2/3)O3 (PMN). The short- and intermediate-range structural changes between ferroelectric, relaxor and antiferroelectric PLZT phases were compared.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 621
Copyright
Copyright © Materials Research Society 1995

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References

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