Magnetocaloric properties of Gd(Co1-xFex)2 compounds, with x ≤ 0.60.

Autor: Anikin, Maksim, Tarasov, Evgeniy, Kudrevatykh, Nikolay, Zinin, Aleksander
Předmět:
Zdroj: EPJ Web of Conferences; 2018, Vol. 185, p1-4, 4p
Abstrakt: In this paper the results of specific magnetization and magnetocaloric effect (MCE) measurements for Gd(Co1-xFex)2 system upon the Co substitution by Fe for the x = 0 ÷ 0.60 range are presented. Phase composition was controlled by X-ray diffraction analysis. MCE has been studied within the temperature range of 300-850 K in magnetic fields up to 17 kOe by the magnetic entropy change calculation (ΔSm). It was found that in contrast to the previously studied R(Co-Fe)2 compounds where R = Dy, Ho, Er, an ordinary symmetrical peak of ΔSm(T) in the vicinity of TC is observed for presented samples. Additionally, the MCE comparison of Gd(Co0.88Fe0.12)2 with that for the isostructural Gd(Ni0.88Fe0.12)2 compound having a plateau-like ΔSm temperature dependence is given. The obtained results are discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index