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Phase segregation in mixed Nb-Sb double perovskites Ba2LnNb1-xSbxO6

Abstract:

The phase composition of two series of mixed Nb5+-Sb5+ double perovskites formed between the pairs Ba2EuNbO6-Ba2PrSbO6 and Ba2NdSbO6-Ba2NdNbO6 have been studied using synchrotron X-ray powder diffraction methods. In both series extensive phase segregation is observed demonstrating limited solubility of Sb5+ in these Nb5+ perovskites, irrespective of the precise structures of the double perovskite. Evidence for a monoclinic I2/m phase in the series formed between tetragonal I4/m Ba2EuNbO6 and ...

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Publisher copy:
10.1016/j.jssc.2007.11.035

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Role:
Author
Journal:
Journal of Solid State Chemistry
Volume:
181
Issue:
2
Pages:
298-305
Publication date:
2008-02-05
DOI:
EISSN:
1095-726X
ISSN:
0022-4596
URN:
uuid:68e838d4-d90c-4078-bfad-43f1fd12384d
Source identifiers:
289677
Local pid:
pubs:289677
Language:
English
Keywords:

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