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Domain structure investigation of non-stoichiometric strontium ferrites and cobaltites

Published online by Cambridge University Press:  14 November 2013

U.V. Ancharova*
Affiliation:
Institute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russia
S.V. Cherepanova
Affiliation:
Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
*

Abstract

Monte Carlo domain structure simulation and Debye equation calculation of XRD patterns were used to confirm the formation of domain structure and investigate its peculiarities. Correspondence of simulated XRD patterns with synchrotron powder diffraction experiments is achieved on the conditions that beside of 90o rotations of brownmillerite-like domains inside perovskite-like matrix each domain contains areas with perpendicularly oriented tetrahedral chains. Influence of such parameters as stoichiometry, average domain size, orthorhombic distortion degree on the XRD patterns is considered.

Type
Technical Articles
Copyright
Copyright © International Centre for Diffraction Data 2013 

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