Stacking fault disorder and its diffraction consequences in Ba 3 MNb 2 O 9 (M = Co and Mn) 1:2 triple perovskites

Date

2006

Authors

Liu, Yun
Withers, Raymond
Ting, Valeska
Fitz Gerald, John
Noren, Lasse

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

This paper considers stacking fault disorder in Ba3M1Nb2O9 (M=Mn2+ or Co2+) 1:2 triple perovskites and how best to model it when refining neutron powder diffraction data. The true local structures of both samples were successfully refined using a coherent stacking fault disordered model. The stacking fault disorder in Ba3MnNb2O9 and Ba3CoNb2O9 affects their dielectric properties.

Description

Keywords

Keywords: Crystal structure; Dielectric properties; Mathematical models; Neutron diffraction; Perovskite; Stacking faults; Ba3M1Nb2O9; Perovskites; Refining neutron powder diffraction data; Stacking fault disorder; Barium compounds Ba3M1Nb2O9; Neutron diffraction; Stacking fault disorder

Citation

Source

Physica B

Type

Journal article

Book Title

Entity type

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Restricted until

2037-12-31