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Phase and valence transitions in Ba2LnSnxNb1-xO6-δ

Abstract:

The structures of compounds in the perovskite series Ba2LnSnxNb1-xO6-δ (Ln=Pr and Tb and x=0, 0.1, 0.2, ..., 1.0) have been examined using synchrotron X-ray and neutron diffraction. It was found that niobate members of both series feature full B-site cation ordering but that this order is lost with increasing x. X-ray absorption near-edge structure (XANES) and near-infrared spectroscopies indicate that the oxidation state of the lanthanide cations gradually changes from Ln3+ to Ln4+ with incr...

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Publisher copy:
10.1016/j.jssc.2008.07.021

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
Journal:
Journal of Solid State Chemistry More from this journal
Volume:
181
Issue:
11
Pages:
2994-3004
Publication date:
2008-11-01
DOI:
EISSN:
1095-726X
ISSN:
0022-4596
Language:
English
Keywords:
Pubs id:
pubs:292995
UUID:
uuid:8ecbe29b-99d8-4770-b1b1-37027cf9d487
Local pid:
pubs:292995
Source identifiers:
292995
Deposit date:
2013-11-17

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