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Published on: June 8, 2022
Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys
Jicheng Feng1,2, Ruben Geutjens1, Nguyen V Thang3
1Faculty of Applied Sciences, Delft University of Technology , Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
Abstract:
Using the magnetocaloric effect in nanoparticles holds great potential for efficient refrigeration and energy conversion. The most promising candidate materials for tailoring the Curie temperature to room temperature are rare-earth-based magnetic nanoalloys. However, only few high-nuclearity lanthanide/transition-metal nanoalloys have been produced so far. Here we report, for the first time, the observation of magnetic response in spark-produced LaFeSi nanoalloys. The results suggest that these nanoalloys can be used to exploit the magnetocaloric effect near room temperature; such a finding can lead to the creation of unique multicomponent materials for energy conversion, thus helping toward the realization of a sustainable energy economy.
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