Rotating magnetocaloric effect in the ferromagnetic Weyl semi-metal Co$_{3}$Sn$_{2}$S$_{2}$

Anzar Ali; Shama; Yogesh Singh

doi:10.1063/1.5120005

paper

Rotating magnetocaloric effect in the ferromagnetic Weyl semi-metal Co $_{3}$ Sn $_{2}$ S $_{2}$

arXiv:1907.03317 · doi:10.1063/1.5120005

Abstract

The rotating magnetocaloric effect (RMCE) is a recent interest in magnetic refrigeration technique in which the cooling effect is attained by rotating the anisotropic magnetocaloric material from one orientation to the other in a fixed magnetic field. In this work, we report the anisotropic magnetocaloric properties of single crystals of the ferromagnetic Weyl semimetal Co $_{3}$ Sn $_{2}$ S $_{2}$ for magnetic field $H ∥ c$ axis and $H ∥ ab$ plane. We observed a significant (factor of $2$ ) difference between the magnetocaloric effect measured in both orientations. The rotating magnetocaloric effect has been extracted by taking the difference of the magnetic entropy change ( $Δ S_{M}$ ) for fields applied in the two crystallographic orientations. In a scaling analysis of $Δ S_{M}$ , the rescaled $Δ S_{M} (T, H)$ vs reduced temperature $θ$ curves collapse onto a single universal curve, indicating that the transition from paramagnetic to ferromagnetic phase at 174~K is a second order transition. Furthermore, using the power law dependence of $Δ S_{M}$ and relative cooling power RCP, the critical exponents $β$ and $γ$ are calculated, which are consistent with the recent critical behavior study on this compound \cite{Yan2018}.

arXiv comment5 pages, 5 figures

Rotating magnetocaloric effect in the ferromagnetic Weyl semi-metal Co $_{3}$ Sn $_{2}$ S $_{2}$

Abstract

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Rotating magnetocaloric effect in the ferromagnetic Weyl semi-metal Co3​Sn2​S2​

Abstract

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Cited by in corpus (5)

Rotating magnetocaloric effect in the ferromagnetic Weyl semi-metal Co $_{3}$ Sn $_{2}$ S $_{2}$