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Structural chemistry and electronic properties of the n=3 Ruddlesden-Popper phases Ca4Mn2FeO9.75 and Sr4Mn2FeO9.80

Abstract:

The room-temperature crystal structures of the n = 3 Ruddlesden-Popper phases Ca4Mn2FeO9.75 and Sr4Mn2FeO9.80 have been refined from neutron and X-ray powder diffraction data. Both adopt space group 14/mmm with (a,c) = (Ca, 3.73683(1), 27.0860(1) ̊), (Sr, 3.83393(1), 27.8148(1) ̊). In both compounds the cation site at the center of the perovskite blocks is preferentially occupied by Fe (Ca, Mn:Fe = 0.424:0.576(4)), and the anion vacancies are found around this site. The occupied anion sites s...

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Publication status:
Published

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Publisher copy:
10.1021/cm9807384

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Branford, WR More by this author
Rosseinsky, MJ More by this author
Singleton, J More by this author
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Journal:
CHEMISTRY OF MATERIALS
Volume:
11
Issue:
3
Pages:
674-683
Publication date:
1999-03-05
DOI:
EISSN:
1520-5002
ISSN:
0897-4756
URN:
uuid:f1d8f66d-bc3e-4c8e-81d6-633142685307
Source identifiers:
36937
Local pid:
pubs:36937
Language:
English

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