Peculiarities of giant magnetocaloric effect in Ni_(50)Mn_(35)In_(15) alloys in the vicinity of martensitic transition

摘要

Adiabatic temperature change, resulting from MCE, is a complex effect depending on in-field behavior of both lattice and magnetic subsystem of the sample. For studying MCE, the understanding of their interplay is crucial. Comparing ΔT_(ad)in different fields (e.g. below, above and far above saturation field) it should be possible to derive contributions from lattice and magnetic subsystems. In this present work we present our study of the MCE in Ni_(50)Mn_(35)In_(15) Heusler alloy in the vicinity of the magnetostructural transition in 1.6 T and 14 T field.