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Title: Magnetism and structure of Fe- and Co-substituted Mn2NiSn

Abstract

Mn-containing Heuslers are important magnetic shape-memory alloys for fast and precise actuators in manufacturing, robotics, surgery, and other applications. Among the key requirements are a high magnetization and favorable thermal properties, especially a high Curie temperature. In this work, the effect of Fe and Co substitution on the structure and magnetism of Mn2NiSn alloys is investigated. The Heusler alloys have been produced by melt spinning and characterized by X-ray diffraction, magnetometry, and electron-transport measurements. It was found that Co substitution for Mn enhances the Curie temperature of Mn2NiSn and both Co and Fe substitution improve its magnetization. Further, these improvements are accompanied by reduced thermal and magnetic hysteresis losses and by interesting structural changes, namely improved chemical order and site occupancies characteristic of quaternary (Y-ordered) Heuslers.

Authors:
 [1];  [1];  [1];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Indian Inst. of Technology (IIT), Mandi (India)
Publication Date:
Research Org.:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1977326
Alternate Identifier(s):
OSTI ID: 1815067
Grant/Contract Number:  
FG02-04ER46152
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 537; Journal Issue: C; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Materials Science; Physics; Magnetic properties; Heusler; Structure; Element substitution

Citation Formats

Zhang, Wenyong, Skomski, Ralph, Valloppilly, Shah R., Khatri, Yogesh, Kashyap, Arti, and Sellmyer, David J. Magnetism and structure of Fe- and Co-substituted Mn2NiSn. United States: N. p., 2021. Web. doi:10.1016/j.jmmm.2021.168157.
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Zhang, Wenyong, Skomski, Ralph, Valloppilly, Shah R., Khatri, Yogesh, Kashyap, Arti, & Sellmyer, David J. Magnetism and structure of Fe- and Co-substituted Mn2NiSn. United States. https://doi.org/10.1016/j.jmmm.2021.168157
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Zhang, Wenyong, Skomski, Ralph, Valloppilly, Shah R., Khatri, Yogesh, Kashyap, Arti, and Sellmyer, David J. Fri . "Magnetism and structure of Fe- and Co-substituted Mn2NiSn". United States. https://doi.org/10.1016/j.jmmm.2021.168157. https://www.osti.gov/servlets/purl/1977326.
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@article{osti_1977326,
title = {Magnetism and structure of Fe- and Co-substituted Mn2NiSn},
author = {Zhang, Wenyong and Skomski, Ralph and Valloppilly, Shah R. and Khatri, Yogesh and Kashyap, Arti and Sellmyer, David J.},
abstractNote = {Mn-containing Heuslers are important magnetic shape-memory alloys for fast and precise actuators in manufacturing, robotics, surgery, and other applications. Among the key requirements are a high magnetization and favorable thermal properties, especially a high Curie temperature. In this work, the effect of Fe and Co substitution on the structure and magnetism of Mn2NiSn alloys is investigated. The Heusler alloys have been produced by melt spinning and characterized by X-ray diffraction, magnetometry, and electron-transport measurements. It was found that Co substitution for Mn enhances the Curie temperature of Mn2NiSn and both Co and Fe substitution improve its magnetization. Further, these improvements are accompanied by reduced thermal and magnetic hysteresis losses and by interesting structural changes, namely improved chemical order and site occupancies characteristic of quaternary (Y-ordered) Heuslers.},
doi = {10.1016/j.jmmm.2021.168157},
journal = {Journal of Magnetism and Magnetic Materials},
number = C,
volume = 537,
place = {United States},
year = {Fri May 28 00:00:00 EDT 2021},
month = {Fri May 28 00:00:00 EDT 2021}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.jmmm.2021.168157
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