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Exploration of room-temperature magnetocaloric effect in nanogranular Ni–Cr thin films.
Exploration of room-temperature magnetocaloric effect in nanogranular Ni–Cr thin films.
- Source :
- MRS Communications; Feb2023, Vol. 13 Issue 1, p117-120, 4p
- Publication Year :
- 2023
-
Abstract
- From multicomponent high-entropy alloys (AlCoCrFeNi) through ternary alloys (CrFeNi) to binary (NiCr) alloys, Cr doping plays a critical role in altering the magnetocaloric properties of the resultant alloys. Magnetocaloric effect (MCE) of Ni<subscript>100−x</subscript>Cr<subscript>x</subscript> (x = 5, 10, 15 at.%) nanogranular thin films were investigated by varying Cr concentration, which demonstrate near room-temperature magnetic entropy change (− ΔS<subscript>M</subscript> = 0.08 J/kg K) and relative cooling power (RCP = 25 J/kg) at 10 at.% Cr. The MCE properties are well predicted using a phenomenological model based on magnetization as a function of temperature, and they correlate well with experimentally measured magnetic isotherms. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21596859
- Volume :
- 13
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- MRS Communications
- Publication Type :
- Academic Journal
- Accession number :
- 162114401
- Full Text :
- https://doi.org/10.1557/s43579-023-00321-w