Geodesic
Sol-gel synthesis and the investigation of the properties of nanocrystalline holmium orthoferrite
Nanosistemy: fizika, himiâ, matematika, Tome 11 (2020) no. 6, pp. 698-704 Cet article a éte moissonné depuis la source Math-Net.Ru

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Holmium orthoferrite nanocrystals (HoFeO$_3$) were synthesized from an aqueous solution by the sol-gel method, using polyvinyl alcohol as a stabilizer and annealing at temperatures of 650, 750, and 850$^\circ$C for an hour. According to the results of the performed analyses, it was found that with an increase in the annealing temperature, the average size of HoFeO$_3$ crystallites increases from 24 to 30 nm. The magnetic characteristics of the samples were measured and it was shown that holmium orthoferrite is a paramagnet with a low coercive force. The band gap of nanocrystalline holmium ferrite is determined.
Keywords: holmium orthoferrite, magnetic properties, optical properties.
Mots-clés : nanoparticles, sol-gel technique 
@article{NANO_2020_11_6_a11,
     author = {A. T. Nguyen and H. L. T. Tran and Ph. U. T. Nguyen and I. Ya. Mittova and V. O. Mittova and E. L. Viryutina and V. H. Nguyen and X. V. Bui and T. L. Nguyen},
     title = {Sol-gel synthesis and the investigation of the properties of nanocrystalline holmium orthoferrite},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {698--704},
     year = {2020},
     volume = {11},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2020_11_6_a11/}
}
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AU  - H. L. T. Tran
AU  - Ph. U. T. Nguyen
AU  - I. Ya. Mittova
AU  - V. O. Mittova
AU  - E. L. Viryutina
AU  - V. H. Nguyen
AU  - X. V. Bui
AU  - T. L. Nguyen
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%A H. L. T. Tran
%A Ph. U. T. Nguyen
%A I. Ya. Mittova
%A V. O. Mittova
%A E. L. Viryutina
%A V. H. Nguyen
%A X. V. Bui
%A T. L. Nguyen
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%J Nanosistemy: fizika, himiâ, matematika
%D 2020
%P 698-704
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A. T. Nguyen; H. L. T. Tran; Ph. U. T. Nguyen; I. Ya. Mittova; V. O. Mittova; E. L. Viryutina; V. H. Nguyen; X. V. Bui; T. L. Nguyen. Sol-gel synthesis and the investigation of the properties of nanocrystalline holmium orthoferrite. Nanosistemy: fizika, himiâ, matematika, Tome 11 (2020) no. 6, pp. 698-704. http://geodesic.mathdoc.fr/item/NANO_2020_11_6_a11/