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arXiv · 1712.00799

Evolution of Structure and Magnetic Properties of Cu2MnBO5 under Partial Mn3+->Fe3+ Substitution

E. M. Moshkina·M. S. Platunov·Yu. V. Seryotkin·A. F. Bovina·E. V. Eremin·S. N. Sofronova·L. N. Bezmaternykh
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Abstract

Single crystals of Fe-substituted Cu2Mn1-xFexBO5 ludwigites have been synthesized using flux technique (x=0.2, 0.4, 0.5 - in the initial flux system). Structural properties of the synthesized compounds were studied by the single crystal and powder X-ray diffraction analysis. Obtained results were analyzed in the relationship with parent compound Cu2MnBO5. It was revealed that the type of monoclinic distortions of Fe-substituted ludwigites is different from the structure of Cu2MnBO5. The real cation composition and local structure of Cu2Mn1-xFexBO5 ludwigites were studied using XANES and EXAFS techniques, respectively. Analysis of field and thermal dependencies of magnetization showed a strong dependence of the magnetic properties of these ludwigites on x with changing the type of magnetic ordering.

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E. M. Moshkina, M. S. Platunov, Yu. V. Seryotkin, A. F. Bovina, E. V. Eremin, S. N. Sofronova, L. N. Bezmaternykh. 2017-12-03. Evolution of Structure and Magnetic Properties of Cu2MnBO5 under Partial Mn3+->Fe3+ Substitution. https://doi.org/10.1016/j.jmmm.2018.05.021

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