The role of competing magnetic interactions on the abnormal expansion properties in manganese antiperovskites, Mn(3+x)A(1-x)N (A = Ni, Sn)

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Title: The role of competing magnetic interactions on the abnormal expansion properties in manganese antiperovskites, Mn(3+x)A(1-x)N (A = Ni, Sn)
Authors: Boldrin, D
Cohen, LF
Item Type: Journal Article
Abstract: The role of competing magnetic interactions in Mn-doped manganese antiperovskites Mn3+xA1−xN (A = Ni and Sn) has been explored using magnetometry and dilatometry, with particular focus on their relation to abnormal expansion properties. Rare negative magnetisation phenomena are found in zero-field-cooled conditions for both A = Sn and Ni when Mn is doped on the A site. Such behaviour is evidence of both competing magnetic sublattices and magnetocrystalline anisotropy. By comparison with other compounds with the antiferromagnetic magnetic structure, we suggest that competing interactions along with magnetovolume coupling influence the near-zero thermal expansion behaviour at intermediate temperatures below in the A = Ni family.
Issue Date: 30-Mar-2017
Date of Acceptance: 20-Dec-2016
URI: http://hdl.handle.net/10044/1/62614
DOI: https://dx.doi.org/10.1016/j.jallcom.2016.12.262
ISSN: 0925-8388
Publisher: Elsevier
Start Page: 887
End Page: 891
Journal / Book Title: Journal of Alloys and Compounds
Volume: 699
Copyright Statement: © 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Imperial College Trust
Engineering & Physical Science Research Council (E
Funder's Grant Number: EP/E016243/1
EP/G060940/1
PHES_P43111
EP/K503733/1
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Chemistry
Materials Science
Magneto-volume effects
Nitride materials
Magnetically ordered materials
THERMAL-EXPANSION
BEHAVIOR
MN4N
0912 Materials Engineering
0914 Resources Engineering And Extractive Metallurgy
0204 Condensed Matter Physics
Materials
Publication Status: Published
Online Publication Date: 2016-12-24
Appears in Collections:Physics
Experimental Solid State
Faculty of Natural Sciences



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