Modified field dependence of the magnetocaloric effect in Gd powder obtained by ball milling

Modified field dependence of the magnetocaloric effect in Gd powder obtained by ball milling

•The magnetocaloric properties of Gd powder prepared by ball milling.•Distribution of the Curie temperatures.•Modified field dependence of the magnetic entropy change. The magnetocaloric properties of Gd powder prepared by ball milling were studied in order to optimize their magnetic field dependenc...

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Veröffentlicht in:Materials letters 2021-02, Vol.284, p.128921, Article 128921
Hauptverfasser: Svalov, A.V., Arkhipov, A.V., Andreev, S.V., Neznakhin, D.S., Larrañaga, A., Kurlyandskaya, G.V.
Format: Artikel
Sprache:eng
Schlagworte:
Ball milling
Curie temperature
Dependence
Entropy change
Gadolinium
Magnetic properties
Magnetism
Materials science
Refrigeration capacity
Transition temperature
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Zusammenfassung:•The magnetocaloric properties of Gd powder prepared by ball milling.•Distribution of the Curie temperatures.•Modified field dependence of the magnetic entropy change. The magnetocaloric properties of Gd powder prepared by ball milling were studied in order to optimize their magnetic field dependence. Nanostructuring of gadolinium powder leads to a distribution of the Curie temperatures. The peak magnetic entropy change follows a power law with exponent close to 0.89 near the transition temperature.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128921