Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys

Jicheng Feng*, Ruben Geutjens, V.T. Nguyên, Junjie Li, Xiaoai Guo, Albert Kéri, Shibabrata Basak, Gábor Galbács, George Biskos, Hermann Nirschl, Henny W. Zandbergen, Ekkes Brück, Andreas Schmidt-Ott

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)6073-6078
Number of pages6
JournalACS Applied Materials and Interfaces
Issue number7
Publication statusPublished - 21 Feb 2018


  • Curie temperature
  • hydrogen uptake
  • magnetocaloric effect
  • rare earths
  • spark ablation


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