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Magnetochemistry 2017, 3(1), 6;

Magnetocaloric Properties of (MnFeRu)2(PSi) as Magnetic Refrigerants near Room Temperature

Research & Development Group, Dyden Cooperation, Kamimine-cho, Miyaki-gun, Saga 849-0124, Japan
Department of Physics, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
Author to whom correspondence should be addressed.
Academic Editor: Adriana Greco
Received: 13 January 2017 / Revised: 27 January 2017 / Accepted: 27 January 2017 / Published: 8 February 2017
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We have scaled up the production process of magnetic refrigerants near room temperature. The Mn2−yFeyxRuxP1−zSiz compounds with 0.03 ≤ x ≤ 0.16, y ≈ 0.75, and z ≈ 0.55 were synthesized and their magnetocaloric properties were examined. By changing the compositions and the annealing temperature, the Curie temperature was tuned between 275 and 315 K with 2~3 K steps. All the compounds underwent a first-order magnetic transition accompanied by thermal hysteresis of less than 2 K. The compounds showed excellent magnetocaloric properties: the magnetic entropy change was more than 10 J/K·kg and the refrigerant capacity was about 115 J/kg in a field change of 1.5 T. The detailed instructions to synthesize high-performance (MnFe)2PSi materials are given. View Full-Text
Keywords: magnetocaloric effect; magnetic refrigeration; first-order magnetic transition; magnetic entropy magnetocaloric effect; magnetic refrigeration; first-order magnetic transition; magnetic entropy

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Ohnishi, T.; Soejima, K.; Yamashita, K.; Wada, H. Magnetocaloric Properties of (MnFeRu)2(PSi) as Magnetic Refrigerants near Room Temperature. Magnetochemistry 2017, 3, 6.

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