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Svalov, A. V.; Beketov, I. V.; Maksimov, A. D.; Medvedev, A. I.; Neznakhin, D. S.; Arkhipov, A. V.; Kurlyandskaya, G. V.
Physics of metals and metallography, 09/2023, Letnik: 124, Številka: 9Journal Article
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.
