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

doi:10.1021/acsami.7b15441

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 journal › Article › Scientific › peer-review

27 Citations (Scopus)

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.

Original language	English
Pages (from-to)	6073-6078
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	7
DOIs	https://doi.org/10.1021/acsami.7b15441
Publication status	Published - 21 Feb 2018

Keywords

Curie temperature
hydrogen uptake
magnetocaloric effect
rare earths
spark ablation

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10.1021/acsami.7b15441

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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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AU - Feng, Jicheng

AU - Geutjens, Ruben

AU - Nguyên, V.T.

AU - Li, Junjie

AU - Guo, Xiaoai

AU - Kéri, Albert

AU - Basak, Shibabrata

AU - Galbács, Gábor

AU - Biskos, George

AU - Nirschl, Hermann

AU - Zandbergen, Henny W.

AU - Brück, Ekkes

AU - Schmidt-Ott, Andreas

PY - 2018/2/21

Y1 - 2018/2/21

N2 - 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.

AB - 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.

KW - Curie temperature

KW - hydrogen uptake

KW - magnetocaloric effect

KW - rare earths

KW - spark ablation

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JO - ACS Applied Materials and Interfaces

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Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys

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Keywords

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