YbPd2In: A promising candidate for strong entropy accumulation at very low temperature

F. Gastaldo, S. Gabáni, A. Džubinská, M. Reiffers, G. Pristáš, I. Čurlík, P. Skyba, M. Clovecko, F. Vavrek, J. G. Sereni, and M. Giovannini
Phys. Rev. B 100, 174422 – Published 18 November 2019

Abstract

We report on synthesis, crystal structure, magnetic, thermodynamic, and transport properties of the compound YbPd2In, 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 T250mK, followed at higher temperature by a power-law decrease of CP(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 YbPd2In as a very good candidate for adiabatic demagnetization cooling processes.

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  • Received 12 August 2019
  • Revised 19 October 2019

DOI:https://doi.org/10.1103/PhysRevB.100.174422

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

F. Gastaldo1, S. Gabáni2, A. Džubinská3, M. Reiffers4, G. Pristáš2, I. Čurlík4, P. Skyba2, M. Clovecko2, F. Vavrek2, J. G. Sereni5,*, and M. Giovannini1

  • 1Department of Chemistry, University of Genova, Via Dodecaneso 31, Genova, Italy
  • 2Institute of Experimental Physics, SAS, Watsonova 47 Košice, Slovakia
  • 3Faculty of Science, P.J. Šafárik University, Košice, Slovakia
  • 4Faculty of Humanities and Natural Sciences, University of Prešov, 17. novembra 1, Prešov, Slovakia
  • 5Low Temperature Division, CAB-CNEA, 8400 San Carlos de Bariloche, Argentina

  • *jsereni@yahoo.com

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Issue

Vol. 100, Iss. 17 — 1 November 2019

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