ACTA

Magnetocaloric Effect in CsDy(MoO₄)₂

R. Tarasenko^a, V. Tkáč^a, A. Orendáčová^a, M. Orendáč^a, V. Sechovský^b, A. Feher^a
^aInstitute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovak Republic
^bDepartment of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, CZ-12116 Prague 2, Czech Republic

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CsDy(MoO₄)₂ belongs to the family of binary alkaline rare-earth molybdates, with detectable low-temperature structural phase transitions, caused by the cooperative Jahn-Teller effect. Magnetocaloric studies of a single crystal of CsDy(MoO₄)₂ have been performed in the temperature range from 2 K to 18 K in magnetic fields up to 7 T applied along the crystallographic a axis. The maximum value of the isothermal entropy change is about 8 J/(kgK) and was achieved already in the fields above 2 T. The observed results suggest that the studied system can be used as a magnetic refrigerant at helium temperatures.

DOI: 10.12693/APhysPolA.133.414
PACS numbers: 75.30.Sg, 75.30.Gw, 71.70.Ej