Giant magnetocaloric effect driven by first-order magneto-structural transition in cosubstituted Ni-Mn-Sb Heusler compounds: predictions from \textit{Ab initio} and Monte Carlo calculations
Sheuly Ghosh,
Subhradip Ghosh
Abstract:Using Density Functional Theory and a thermodynamic model [Physical Review B 86, 134418 (2012)], in this paper, we provide an approach to systematically screen compounds of a given Heusler family to predict ones that can yield giant magnetocaloric effect driven by a first-order magnetostructural transition. We apply this approach to two Heusler series Ni2−xFexMn1+z−yCuySb1−z and Ni2−xCoxMn1+z−yCuySb1−z, obtained by cosubstitution at Ni and Mn sites. We predict four new compounds with potentials to achieve the… Show more
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