Magnetic and magnetocaloric properties of Dy5Pd2: role of magnetic irreversibility
作者： Tapas Paramanik , Tapas Samanta , R. Ranganathan , I. Das
DOI: 10.1039/C5RA06970J
关键词: Intermetallic 、 Magnetic field 、 Inverse 、 Chemistry 、 Magnetic refrigeration 、 Peak value 、 Magnetization 、 Entropy (order and disorder) 、 Condensed matter physics 、 Thermodynamics
摘要: In this report the magnetic behavior and magnetocaloric response of intermetallic compound Dy5Pd2 has been investigated from detailed magnetization measurements. Magnetic cluster glass observed in crystalline below 38 K. Magnetocaloric entropy changes evaluated using Maxwell’s relation (MXR) zero-field-cooled isotherms, which is used mostly literature, shows a giant inverse effect (MCE) 20 K large conventional MCE around 60 compound. The value ∼29 J kg−1 K−1 for 50 kOe external field change at T = 3.5 context, origin its temperature dependence studied. applicability MXR procedure to obtain reversible important practical application discussed. exhibits with peak (ΔSmaxM) 8.3 under an irreversible
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