Wide temperature window of magnetostructural transition achieved in Mn0.4Fe0.6NiSi1−xGax by a two-step isostructural alloying process

J. Chen; H. G. Zhang; E. K. Liu; M. Yue; Q. M. Lu; W. H. Wang; G. H. Wu; J. X. Zhang

doi:10.1063/1.4944704

AIP Advances (May 2016)

Wide temperature window of magnetostructural transition achieved in Mn0.4Fe0.6NiSi1−xGax by a two-step isostructural alloying process

J. Chen,
H. G. Zhang,
E. K. Liu,
M. Yue,
Q. M. Lu,
W. H. Wang,
G. H. Wu,
J. X. Zhang

Affiliations

J. Chen: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
H. G. Zhang: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
E. K. Liu: State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
M. Yue: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
Q. M. Lu: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
W. H. Wang: State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
G. H. Wu: State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
J. X. Zhang: College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

DOI: https://doi.org/10.1063/1.4944704
Journal volume & issue: Vol. 6, no. 5
pp. 056220 – 056220-6

Abstract

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A new approach has been proposed in this work, which provides an effective way for tuning the structural transition in MM’X systems with relatively high transition temperature. With this method, a temperature window as wide as 275 K for the magnetostructural transition has been achieved in the MnNiSi alloy system. The maximum magnetic entropy change of the system is as high as 13.3 J/kgK, which, together with the large temperature window, enables the Mn0.4Fe0.6NiSi1−xGax system to be a promising candidate for magnetic refrigerant applications.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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