Structure and Magnetic Properties of Gd2O3 Nanoparticles Synthesized by Spark Discharge

Structure and Magnetic Properties of Gd2O3 Nanoparticles Synthesized by Spark Discharge

Gadolinium oxide nanoparticles were synthesized by the electrophysical method of spark discharge. Their structural features and magnetic and magnetocaloric properties have been comparatively analyzed. According to X-ray diffraction analysis data, the synthesized Gd 2 O 3 nanoparticles contain two cr...

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Veröffentlicht in:Physics of metals and metallography 2023-09, Vol.124 (9), p.870-874
Hauptverfasser: Svalov, A. V., Beketov, I. V., Maksimov, A. D., Medvedev, A. I., Neznakhin, D. S., Arkhipov, A. V., Kurlyandskaya, G. V.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry and Materials Science
Crystallography
Electric sparks
Electrical and Magnetic Properties
Gadolinium
Gadolinium oxides
Magnetic properties
Materials Science
Metallic Materials
Nanoparticles
Synthesis
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Zusammenfassung:Gadolinium oxide nanoparticles were synthesized by the electrophysical method of spark discharge. Their structural features and magnetic and magnetocaloric properties have been comparatively analyzed. According to X-ray diffraction analysis data, the synthesized Gd 2 O 3 nanoparticles contain two crystallographic phases, cubic and monoclinic. The magnetic entropy change Δ S M is determined from the data of magnetic isotherm measurements by the Maxwell relationship. The maximal Δ S M at a magnetic field change amplitude of 2 T is approximately 17 J/(kg K) and observed at a temperature of 2.5 K.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X23601348