Journal
SCRIPTA MATERIALIA
Volume 170, Issue -, Pages 48-51Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.05.027
Keywords
Heusler compounds; Magnetocaloric; Energy conversion; Intermetallic compounds; First-principles calculations
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Funding
- FRIMAG project - Emilia-Romagna region within the 2014-20 POR-FESR program [CUP E32F16000190007]
- Deutsche Forschungsgemeinschaft [SPP 1599 (GR3498/3-2)]
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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 Ni48Mn36In16-xSnx (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. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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