Structure and magnetic properties of Gd2O3 nanoparticles obtained by the spark discharge method

A. V. Svalov; Свалов А. В.; I. V, Beketov; Бекетов И. В.; A. D. Maksimov; Максимов А. Д.; A. I. Medvedev; Медведев А. И.; D. S. Neznakhin; Незнахин Д. С.; A. V. Arkhipov; Архипов А. В.; G. V. Kurlyandskaya; Курляндская Г. В.

doi:10.31857/S0015323023600776

Structure and magnetic properties of Gd2O3 nanoparticles obtained by the spark discharge method

Authors: Svalov A.V.¹, Beketov I.V.¹^,2, Maksimov A.D.², Medvedev A.I.², Neznakhin D.S.¹, Arkhipov A.V.¹, Kurlyandskaya G.V.¹
Affiliations:
1. Ural Federal University
2. The Institute of Electrophysics of the Ural Branch of the Russian Academy of Sciences
Issue: Vol 124, No 9 (2023)
Pages: 806-810
Section: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
URL: https://journals.rcsi.science/0015-3230/article/view/139480
DOI: https://doi.org/10.31857/S0015323023600776
EDN: https://elibrary.ru/DOKSQF
ID: 139480

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Abstract
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Abstract

Gadolinium oxide nanoparticles were obtained by the spark discharge electrophysical method. Structure, magnetic and magnetocaloric properties of Gd2O3 nanoparticles are comparatively analyzed. According to X-ray phase analysis, the synthesized Gd2O3 nanoparticles contain two crystallographic phases: cubic and monoclinic. The change in the magnetic part of the entropy dSM was determined from the measurement data of magnetic isotherms based on the Maxwell relation. The maximum value of dSM for a magnetic field variation amplitude of 2 T was approximately 17 J/kgK and was observed at a temperature of 2.5 K.

Keywords

gadolinium oxide, spark discharge, phase composition, magnetization curves, magnetocaloric effect, cryogenic temperatures

References

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