Magnetic properties of ilmenite Mn2FeSbO6

•Discussion of the crystal and magnetic structure of ilmenite Mn2FeSbO6.•Ferrimagnetic transition at TN = 270 K.•Identical zero field and field cooled (ZFC-FC) M vs T curves.•Significant changes in M vs T curves with H and T due to unsaturated moments.•Near-zero coercive field in magnetization M vs...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2019-06, Vol.480, p.58-63
Main Author: Schmidt, Rainer
Format: Article
Language:English
Subjects:
Coercivity
Ferrimagnetism
Ilmenite
Magnetic properties
Magnetism
Multiferroics
Superparamagnetism
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Summary:•Discussion of the crystal and magnetic structure of ilmenite Mn2FeSbO6.•Ferrimagnetic transition at TN = 270 K.•Identical zero field and field cooled (ZFC-FC) M vs T curves.•Significant changes in M vs T curves with H and T due to unsaturated moments.•Near-zero coercive field in magnetization M vs applied magnetic field H curves. In the work presented the magnetic properties of the high pressure ilmenite phase Mn2FeSbO6 are investigated in detail. It is shown that Mn2FeSbO6 ilmenite is ferrimagnetic (TN ≈ 270 K) and exhibits a near-zero coercive field HC. Furthermore, the Mn2+-Mn2+, Fe3+-Fe3+ and Mn2+-Fe3+ magnetic exchange interactions exhibit gradual and continuous variations with temperature and magnetic field. The ferrimagnetic moment is unsaturated even at 120 kOe below the theoretical value of 5 μB per f.u.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2019.02.047