The multi peaks of magnetocaloric effect in Ni48Mn39.5Sn9.5Al3 ribbon

• Published in: Applied physics. A, Materials science & processing Vol. 130; no. 8
• Main Authors: Hamad, Mahmoud A., Alamri, Hatem R.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2024; Springer Nature B.V
• Subjects: Antiferromagnetism; Characterization and Evaluation of Materials; Condensed Matter Physics; Cryogenic temperature; Ferromagnetism; Machines; Magnetic materials; Magnets; Manufacturing; Martensite; Nanotechnology; Optical and Electronic Materials; Phase transitions; Physics; Physics and Astronomy; Processes; Ribbons; Surfaces and Interfaces; Thin Films; Phenomenological model; Mn; Magnetocaloric effect; ribbon; Ni; Sn; Al
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-024-07723-0

The magnetocaloric effect (MCE) of Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbon is simulated using a phenomenological model with possible uses in magnetic refrigeration (MR). In this work, both conventional and inverse MCEs associated with magnetic (ferromagnet-antiferromagnet) and structural (austenite–martensite) phase transitions are theoretically investigated. The results show that three associated peaks of the inverse and conventional MCEs are observed. It is recommended that magnets with triple peak MCE behaviour, such as Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons, may offer an intriguing MR with a larger temperature-range than conventional refrigerant compounds, particularly Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons, which are cheap to use in MR. Furthermore, the MCE values of Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons are significantly higher than those of some magnetocaloric materials from previous studies. Consequently, Ni 48 Mn 39.5 Sn 9.5 Al 3 ribbons are appropriate magnetocaloric magnets for wide temperature range, covering cryogenic and room-temperatures.