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BaMnO3-x revisited: A structural and magnetic study

Abstract:

The synthesis and structural characterization of 15R-, 8H-, 6H′-, and 10H-BaMnO3-x and 9R-Ba0.875-Sr0.125MnO 3 is described. Neutron powder diffraction data reveal a strong preference for the location of anion vacancies within the face-shared hexagonal layers of these phases. At high anion vacancy concentrations, Mn 2Og9-x dimer units become prevalent. Magnetic characterization indicates antiferro-magnetic order in all phases. Ordering temperatures are in the range 250 K < T < 270 K and...

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Publication status:
Published

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Publisher copy:
10.1021/cm062055r

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
Journal:
CHEMISTRY OF MATERIALS
Volume:
19
Issue:
4
Pages:
755-762
Publication date:
2007-02-20
DOI:
EISSN:
1520-5002
ISSN:
0897-4756
Source identifiers:
40228
Language:
English
Pubs id:
pubs:40228
UUID:
uuid:6b585b4d-e7ee-4ca8-8550-51846443802a
Local pid:
pubs:40228
Deposit date:
2012-12-19

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