Synthesis and Structural and Magnetic Properties of the NaNiFe.sub.2.sub.3 Compound

A new magnetic compound NaNiFe.sub.2(VO.sub.4).sub.3 has been obtained by the solid-phase synthesis and studied by X-ray diffractometry, nuclear gamma resonance, and magnetometry. The crystal structure of multicomponent vanadate is described by a triclinic symmetry space group P1. The unit cell cont...

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Published inPhysics of the solid state Vol. 63; no. 5; p. 802
Main Authors Drokina, T. V, Velikanov, D. A, Bayukov, O. A, Molokeev, M. S, Petrakovskii, G. A
Format Journal Article
LanguageEnglish
Published Springer 01.05.2021
Subjects
Analysis
Crystals
Ferromagnetism
Magnetic properties
Magnetization
Structure
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Summary:A new magnetic compound NaNiFe.sub.2(VO.sub.4).sub.3 has been obtained by the solid-phase synthesis and studied by X-ray diffractometry, nuclear gamma resonance, and magnetometry. The crystal structure of multicomponent vanadate is described by a triclinic symmetry space group P1. The unit cell contains six nonequivalent mixed cationic positions occupied by different-valence ions of transition metals, iron Fe.sup.3+ and nickel Ni.sup.2+, which facilitates the implementation of a state with the local charge neutrality violation. In addition, two types of iron atom sites have been found, which have an oxygen environment in the form of octahedra and square pyramids with their nonequiprobable population by iron and nickel. The temperature and field dependences of the magnetization have been found to be typical of a paramagnet containing ferromagnetic clusters in a wide temperature range.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783421060056