Preferential Substitution of Barium in Orthorhombic Lead Metaniobate

The crystal structure of a ferroelectric lead metaniobate containing 10 mole% barium was refined using the Rietveld method on diffraction patterns obtained using multiple diffraction techniques. Cu Kα X-ray diffraction, synchrotron diffraction, and neutron diffraction were used to provide complement...

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Bibliographic Details
Published in:Ferroelectrics 2010-01, Vol.408 (1), p.9-19
Main Authors: Iverson, Benjamin J., Slamovich, Elliott B., Bowman, Keith J.
Format: Article
Language:English
Subjects:
Barium
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Crystal structure
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Diffraction
Exact sciences and technology
Ferroelectrics
Inorganic compounds
Lead
Niobates, titanates, tantalates, pzt ceramics, etc
Physics
Salts
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Description
Summary:The crystal structure of a ferroelectric lead metaniobate containing 10 mole% barium was refined using the Rietveld method on diffraction patterns obtained using multiple diffraction techniques. Cu Kα X-ray diffraction, synchrotron diffraction, and neutron diffraction were used to provide complementary information on the structure of this substitutionally-alloyed compound. Neutron diffraction was used as a starting point for refinement with the X-ray diffraction methods used for final structural refinements. Barium was found to preferentially substitute on lead sites in the lead metaniobate crystal structure.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2010.484781