Room Temperature Magnetocaloric Effect in Ni-Mn-In

Abstract

We have studied the effect of magnetic field on a non-stoichiometric Heusler alloy Ni${}_{50}$Mn${}_{35}$In${}_{15}$ that undergoes a martensitic as well as a magnetic transition near room temperature. Temperature dependent magnetization measurements demonstrate the influence of magnetic field on the structural phase transition temperature. From the study of magnetization as a function of applied field, we show the occurrence of inverse-magnetocaloric effect associated with this magneto-structural transition. The magnetic entropy change attains a value as high as 25 J/kg-K (at 5 T field) at room temperature as the alloy transforms from the austenitic to martensitic phase with a concomitant magnetic ordering.

References in corpus (2)

• Inverse magnetocaloric effect in ferromagnetic Ni-Mn-Sn alloys
• Giant entropy change at the co-occurrence of structural and magnetic transitions in the Ni2.19Mn0.81Ga Heusler alloy

Cited by in corpus (6)

• Giant inverse magnetocaloric effect near room temperature in Co substituted NiMnSb Heusler alloys
• Correlation between Local Structure Distortions and Martensitic Transformation in Ni-Mn-In alloys
• Anomalous Magnetic Properties in Ni50Mn35In15
• Magnetic interactions in the Martensitic phase of Mn rich Ni-Mn-In shape memory alloys
• Effect of site occupancy disorder on Martensitic properties of Mn${}_2$NiIn type alloys: x-ray absorption fine structure study
• Half-metallicity and wandering axis ferromagnetism in Fe${}_2$Ti${}_{1-x}$Mn${}_x$Sn (0 $<x\le$ 0.3) Heusler Alloys