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Nanosystems: Physics, Chemistry, Mathematics, 2020, Volume 11, Issue 6, Pages 698–704
DOI: https://doi.org/10.17586/2220-8054-2020-11-6-698-704 (Mi nano577) 		 
This article is cited in 2 scientific papers (total in 2 papers)

CHEMISTRY AND MATERIAL SCIENCE

Sol-gel synthesis and the investigation of the properties of nanocrystalline holmium orthoferrite

A. T. Nguyena, H. L. T. Trana, Ph. U. T. Nguyena, I. Ya. Mittovab, V. O. Mittovac, E. L. Viryutinab, V. H. Nguyend, X. V. Buie, T. L. Nguyenfg

a Ho Chi Minh City University of Education, Ho Chi Minh City 700000, Vietnam
b Voronezh State University, Universitetskaya pl. 1, Voronezh, 394018, Russia
c Burdenko Voronezh State Medical University, Voronezh, 394036, Russia
d Dong Thap University, Cao Lanh City 81000, Vietnam
e Sai Gon University, Ho Chi Minh City, 700000, Vietnam
f Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
g Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Vietnam
Full-text PDF (572 kB) Citations (2)
DOI: https://doi.org/10.17586/2220-8054-2020-11-6-698-704
Abstract: 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: nanoparticles, holmium orthoferrite, sol-gel technique, magnetic properties, optical properties.
Funding agency Grant number
Ho Chi Minh City University of Education CS.2020.19.21
Nguyen Anh Tien is grateful for the financial support of Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam, through Grant No. CS.2020.19.21.
Received: 28.08.2020
Revised: 20.10.2020
Bibliographic databases:
Document Type: Article
Language: English
Citation: 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”, Nanosystems: Physics, Chemistry, Mathematics, 11:6 (2020), 698–704
Citation in format AMSBIB
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\paper Sol-gel synthesis and the investigation of the properties of nanocrystalline holmium orthoferrite
\jour Nanosystems: Physics, Chemistry, Mathematics
\yr 2020
\vol 11
\issue 6
\pages 698--704
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