ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
5 years ago

Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys

Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys
Gábor Galbács, Andreas Schmidt-Ott, Ekkes Brück, Albert Kéri, Jicheng Feng, Nguyen V. Thang, Ruben Geutjens, Shibabrata Basak, Junjie Li, Hermann Nirschl, George Biskos, Henny W. Zandbergen, Xiaoai Guo
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.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b15441

DOI: 10.1021/acsami.7b15441

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