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arXiv · 2303.07802

Magnetocaloric effect in the high-temperature antiferromagnet YbCoC2

D. A. Salamatin·V. N. Krasnorussky·A. V. Semeno·A. V. Bokov·A. Velichkov·Z. Surowiec·A. V. Tsvyashchenko
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Abstract

The magnetic $H$-$T$ phase diagram and magnetocaloric effect in the recently discovered high-temperature heavy-fermion compound YbCoC$_2$ have been studied. With the increase in the external magnetic field YbCoC$_2$ experiences the metamagnetic transition and then transition to the ferromagnetic state. The dependencies of magnetic entropy change -$ΔS_m (T)$ have segments with positive and negative magnetocaloric effects for $ΔH \leq 6$~T. For $ΔH = 9$~T magnetocaloric effect becomes positive with a maximum value of -$ΔS_m (T)$ is 4.1 J / kg K and a refrigerant capacity is 56.6 J / kg.

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D. A. Salamatin, V. N. Krasnorussky, A. V. Semeno, A. V. Bokov, A. Velichkov, Z. Surowiec, A. V. Tsvyashchenko. 2023-03-14. Magnetocaloric effect in the high-temperature antiferromagnet YbCoC2. https://arxiv.org/abs/2303.07802

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