Abstract
The paper reports on a comprehensive study of magnetic properties of CuFe2−x CrxO4 ferrites (x=0.0, 0.2, 0.3, 1.0, 1.4, 1.6, and 2.0). The curves of magnetization versus temperature, σ s(T), of the ferrites with x=1.0, 1.4, and 1.6 have anomalous shapes: the magnetization begins to fall off at lower temperatures than the Curie point TC. The experimental results and analysis of exchange interactions suggest that in ferrites with high Cr3+ content, magnetic transitions to either a frustrated magnetic structure or a clustered spin glass can take place.
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Zh. Éksp. Teor. Fiz. 111, 1732–1737 (May 1997)
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Antoshina, L.G., Goryaga, A.N., Kukudzhanova, E.N. et al. Anomalous magnetic properties of ferrites of the CuFe2−x CrxO4 system with high Cr3+ content. J. Exp. Theor. Phys. 84, 948–950 (1997). https://doi.org/10.1134/1.558236
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DOI: https://doi.org/10.1134/1.558236