Tuning the magnetic and magnetocaloric properties of austenitic Ni-Mn-(In, Sn) Heuslers. (September 2019)

• Record Type: Journal Article
• Authors: Cavazzini, G.; Cugini, F.; Gruner, M.E.; Bennati, C.; Righi, L.; Fabbrici, S.; Albertini, F.; Solzi, M.
• Is Part Of: Scripta materialia. Number 170(2019)
• Page Start: 48
• Page End: 51
• Publication Date: 2019-09
• Subjects: Heusler compounds -- Magnetocaloric -- Energy conversion -- Intermetallic compounds -- First-principles calculations; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2019.05.027
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: In this work, we highlight the occurrence of different physical mechanisms that independently control the saturation magnetization and the ferro-paramagnetic transition temperature of Ni-Mn-based Heusler compounds, opening new possibilities in mastering the functional properties of this wide class of magnetic materials. We present the magnetic, structural and magnetocaloric features of a complete Ni48 Mn36 In16−x Snx (x = 0–16) series. The observed different trends of the critical temperature and of the saturation magnetization on varying the Sn to In ratio are discussed with the help of first-principles calculations of the electronic structure and magnetic interactions of the compound. Graphical abstract: Unlabelled Image