TITLE

Determination of cations distribution in Mn3O4 by anomalous x-ray powder diffraction

AUTHOR(S)
Yanan Xiao; Wittmer, Dale E.; Izumi, Fujio; Mini, Susan; Graber, Tim; Viccaro, P. James
PUB. DATE
August 2004
SOURCE
Applied Physics Letters;8/2/2004, Vol. 85 Issue 5, p736
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The oxidation states of Mn at two different crystallographic sites in the distorted spinel structure of Mn3O4 were determined by the approach of anomalous synchrotron x-ray powder diffraction. The real parts of anomalous scattering factors for the two Mn sites were refined from a series of powder diffraction patterns collected at the vicinity of K absorption edge of Mn. The results of Rietveld refinements showed that the two distinct cation sites can obviously be distinguished from each other and that Mn2+ ions occupy the tetrahedral site and Mn3+ ions are located at the octahedral site.
ACCESSION #
13926112

 

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