Evolution of the mössbauer spectra of ludwigite Co3 − xFexO2BO3 with substitution of iron for cobalt

A concentration series of single crystals of iron-cobalt ludwigites Co 3 − x Fe x O 2 BO 3 ( x = 0.0125, 0.025, 0.050, 0.10, 1.0) has been synthesized. The structure has been studied using X-ray diffraction and Mössbauer effect. A preferred occupation of nonequivalent crystallographic positions by i...

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Bibliographic Details
Published inPhysics of the solid state Vol. 55; no. 6; pp. 1175 - 1179
Main Authors Knyazev, Yu. V., Ivanova, N. B., Bayukov, O. A., Kazak, N. V., Bezmaternykh, L. N., Vasiliev, A. D.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.06.2013
Subjects
Magnetism
Physics
Physics and Astronomy
Solid State Physics
Model Doublet
Ludwigite
Quadrupole Doublet
Substitution Concentration
Nonequivalent Position
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Summary:A concentration series of single crystals of iron-cobalt ludwigites Co 3 − x Fe x O 2 BO 3 ( x = 0.0125, 0.025, 0.050, 0.10, 1.0) has been synthesized. The structure has been studied using X-ray diffraction and Mössbauer effect. A preferred occupation of nonequivalent crystallographic positions by iron in the ludwigite structure has been revealed. It has been found that the valence of substituting iron ions is three. It has been revealed that the structure of the γ-resonance spectrum of Co 2 FeO 2 BO 3 is complicated due to a composition disorder in the system.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783413060176