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arXiv · 1711.02335

YbPd$_2$In: a promising candidate to strong entropy accumulation at very low temperature

F. Gastaldo·S. Gabani·A. Džubinská·M. Reiffers·G. Pristáš·I. Čurlík·P. Skyba·M. Clovecko·F. Vavrek·J. G. Sereni·M. Giovannini
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Abstract

We report on synthesis, crystal structure, magnetic, thermodynamic and transport properties of the new compound YbPd$_2$In, crystallizing as a Heusler structure type. A trivalent state of the rare earth was determined by fitting the magnetic susceptibility with a Curie-Weiss law. This compound is characterized by showing very weak magnetic interactions and a negligible Kondo effect. A specific heat jump was observed at $T\approx 250$ mK, followed at higher temperature by a power law decrease of $C_P(T)/T$. The resulting large electronic entropy increase at very low temperature is rapidly shifted to higher temperature by the application of magnetic field. This magnetocaloric effect places YbPd$_2$In as a very good candidate for adiabatic demagnetization cooling processes.

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F. Gastaldo, S. Gabani, A. Džubinská, M. Reiffers, G. Pristáš, I. Čurlík, P. Skyba, M. Clovecko, F. Vavrek, J. G. Sereni, M. Giovannini. 2017-11-07. YbPd$_2$In: a promising candidate to strong entropy accumulation at very low temperature. https://arxiv.org/abs/1711.02335

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