Structural modulation in Sr1.4Ta0.6O2.9: non-harmonicity on ADPs during Rietveld refinement

The perovskite-like material Sr1.4Ta0.6O2.9 presents structural modulations due to oxygen vacancies. A non-harmonic treatment of atomic displacement parameters was used to obtain information on atom mean localization in addition to correlative displacement of cations located near oxygen vacancies.

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Bibliographic Details
Published inThe international journal of inorganic materials Vol. 3; no. 8; pp. 1121 - 1123
Main Authors Deniard, P., Caldes, M.T., Zou, X.D., Diot, N., Marchand, R., Brec, R.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2001
Subjects
Modulated structures
Non-harmonicity
Rietveld refinement
Modulated structures
Non-harmonicity
Rietveld refinement
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Summary:The perovskite-like material Sr1.4Ta0.6O2.9 presents structural modulations due to oxygen vacancies. A non-harmonic treatment of atomic displacement parameters was used to obtain information on atom mean localization in addition to correlative displacement of cations located near oxygen vacancies.
ISSN:1466-6049
1466-6049
DOI:10.1016/S1466-6049(01)00111-8