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Structural phase transitions and crystal chemistry of the series Ba2LnB′O6 (Ln=lanthanide and B′=Nb5+ or Sb5+)

Abstract:

The structures of 28 compounds in the two series Ba2LnSbO6 and Ba2LnNbO6 have been examined using synchrotron X-ray and in selected cases neutron powder diffraction at, below and above ambient temperature. The antimonate series is found to undergo a sequence of phase transitions from monoclinic to rhombohedral to cubic symmetry with both decreasing ionic radii of the lanthanides and increasing temperature. Compounds in the series Ba2LnNbO6, on the other hand, feature an intermediate tetragona...

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Publisher copy:
10.1016/j.jssc.2006.10.017

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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Role:
Author
Journal:
Journal of Solid State Chemistry
Volume:
180
Issue:
2
Pages:
401-409
Publication date:
2007-02-05
DOI:
EISSN:
1095-726X
ISSN:
0022-4596
URN:
uuid:1bf0facf-2b86-4526-bb82-f00521e93f43
Source identifiers:
286510
Local pid:
pubs:286510

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