Experimental Study of the Magnetocaloric Effect in Ni(en)(H2O)4SO4·2H2O - An S = 1 Molecular Magnet with Easy-Plane Anisotropy |
| R. Tarasenkoa, A. Orendáčová a, E. Čižmár a, M. Orendáč a, I. Potočňák b, and A. Feher a
aInstitute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovak Republic bInstitute of Chemistry, Faculty of Science, P.J. Šafárik University, Moyzesova 11, 041 54 Košice, Slovak Republic |
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| Magnetocaloric properties of Ni(en)(H2O)4SO4·2H2O powder were investigated in temperature range from 2 K to 30 K in magnetic fields up to 7 T using isothermal magnetization measurements. The maximum value of the isothermal entropy change in the field 7 T is about 8 J/(kg K), with a refrigerant capacity of 55 J/kg. Temperature dependence of the isothermal entropy change under different magnetic fields is in good agreement with theoretical predictions from crystal electric field parameters. |
DOI: 10.12693/APhysPolA.131.904 PACS numbers: 75.30.Sg, 75.30.Gw, 71.70.Ch |