Effect of Fe-substitution on the structure and magnetism of single crystals Mn2-xFexBO4
M.S. Platunov, N.V. Kazak, Yu.V. Knyazev, L.N. Bezmaternykh, E.M., Moshkina, A.L. Trigub, A.A. Veligzhanin, Y.V. Zubavichus, L.A. Solovyov, D.A., Velikanov, S.G. Ovchinnikov
TL;DR
This study investigates how substituting Fe into Mn2BO4 affects its crystal structure and magnetic properties, revealing a transition to spin-glass behavior at low temperatures for different Fe concentrations.
Contribution
It provides detailed structural and magnetic analysis of Fe-substituted Mn2BO4 single crystals, highlighting the emergence of spin-glass states due to Fe substitution.
Findings
Crystallizes in orthorhombic warwickite structure
Spin-glass transition observed at low temperatures
Transition temperature increases with Fe content
Abstract
Single crystalline Mn2-xFexBO4 with x = 0.3, 0.5, 0.7 grown by the flux method have been studied by means of X-ray diffraction and X-ray absorption spectroscopy at both Mn and Fe K edges. The compounds were found to crystallize in an orthorhombic warwickite structure (sp. gr. Pnam). The magnetization data have revealed a spin-glass transition at TSG= 11, 14 and 18 K for x= 0.3, 0.5 and 0.7, respectively.
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