Features of the Cation Distribution and Magnetic Properties of BaFe12 − xYxO19 Hexaferrites

Using Mössbauer spectroscopy, magnetometry and X-ray diffraction, we have studied the BaY x Fe 12 –   x O 19 hexaferrite (0.1 ≤ x ≤ 1.2). The low isomorphic capacitance of hexaferrite is shown, which leads to phase separation with the formation of ВаFe 2 O 4 and Y 3 Fe 5 O 12 for x = 0.6. Mössbauer...

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Bibliographic Details
Published in:Physics of the solid state 2021-02, Vol.63 (2), p.253-260
Main Authors: Kostishin, V. G., Korovushkin, V. V., Isaev, I. M., Mironovich, A. Yu, Trukhanov, S. V., Turchenko, V. A., Astapovich, K. A., Trukhanov, A. V.
Format: Article
Language:English
Subjects:
Magnetic measurement
Magnetic properties
Magnetism
Mossbauer spectroscopy
Phase separation
Physics
Physics and Astronomy
Solid State Physics
Spectrum analysis
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Summary:Using Mössbauer spectroscopy, magnetometry and X-ray diffraction, we have studied the BaY x Fe 12 –   x O 19 hexaferrite (0.1 ≤ x ≤ 1.2). The low isomorphic capacitance of hexaferrite is shown, which leads to phase separation with the formation of ВаFe 2 O 4 and Y 3 Fe 5 O 12 for x = 0.6. Mössbauer spectroscopy data have shown that, in the studied range of substitutions, Y 3+ ions enter the 12 k position with the formation of a nonequivalent 12 k ' position due to the breaking of two Fe(12 k )–O–Fe(12 k ) magnetic bonds in the 12 k octahedron triad with their replacement by Fe(12 k )–O–Y (12 k ). The BaY x Fe 12 –   x O 19 hexaferrite has been shown to be less magnetically hard than BaFe 12 –   x Al x O 19 .
ISSN:1063-7834
1090-6460
DOI:10.1134/S106378342102013X