BaMnO3-x Revisited: A Structural and Magnetic Study
Source abstract
Abstract
The synthesis and structural characterization of 15R-, 8H-, 6H‘-, and 10H-BaMnO 3 - x and 9R-Ba 0.875 Sr 0.125 MnO 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 2 O 9 - x dimer units become prevalent. Magnetic characterization indicates antiferromagnetic order in all phases. Ordering temperatures are in the range 250 K < T < 270 K and show a dependence on the fraction of cubic layers present in the stacking sequence.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR England
References (23)
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