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Production of Zinc-Doped Yttrium Ferrite Nanopowders by the Sol–Gel Method

Zinc-doped yttrium orthoferrite nanocrystals having the perovskite structure were prepared by coprecipitation of yttrium, zinc, and iron hydroxides. The limiting zinc doping level of the yttrium ferrite to yield a ZnFe 2 O 4 spinel second phase was determined. The yttrium orthoferrite particle size...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2018-06, Vol.63 (6), p.742-746
Main Authors: Berezhnaya, M. V., Mittova, I. Ya, Perov, N. S., Al’myasheva, O. V., Nguyen, A. T., Mittova, V. O., Bessalova, V. V., Viryutina, E. L.
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Language:English
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Summary:Zinc-doped yttrium orthoferrite nanocrystals having the perovskite structure were prepared by coprecipitation of yttrium, zinc, and iron hydroxides. The limiting zinc doping level of the yttrium ferrite to yield a ZnFe 2 O 4 spinel second phase was determined. The yttrium orthoferrite particle size was found to be a nonmonotone function of dopant concentration. The specific magnetization of yttrium ferrite nanocrystals increases with increasing zinc doping level from 0.242 A m 2 /kg (in undoped YFeO 3 ) to 1.327 A m 2 /kg (the ratio (1– x )YFeO 3 : x Zn ( x = 0.4)) at Т = 300 K in 1250-kA/m field. A zinc ferrite impurity in samples enhances the ferromagnetism of the material.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023618060049