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dc.contributor.authorLei, L
dc.contributor.authorZhang, L
dc.contributor.authorGao, S
dc.contributor.authorHu, Q
dc.contributor.authorFang, L
dc.contributor.authorChen, X
dc.contributor.authorXia, Y
dc.contributor.authorWang, X
dc.contributor.authorOhfuji, H
dc.contributor.authorKojima, Y
dc.contributor.authorRedfern, Simon
dc.contributor.authorZeng, Z
dc.contributor.authorChen, B
dc.contributor.authorHe, D
dc.contributor.authorIrifune, T
dc.date.accessioned2018-11-28T11:17:13Z
dc.date.available2018-11-28T11:17:13Z
dc.date.issued2018-07-05
dc.identifier.issn0925-8388
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286015
dc.description.abstractBinary ε-Fe 3 N 1.098 and ternary ε-Fe 2.322 Co 0.678 N 0.888 were synthesized as spherical bulk materials using novel high-pressure solid-state metathesis reactions (HPSSM). The structural and magnetic properties of the two nitrides were investigated using neutron powder diffraction (NPD), a vibrating sample magnetometer (VSM), and first-principle calculations. We found that at high pressure and high temperature (HPHT), nitrogen atoms enter the interstitial 2d sites of the nitrogen-rich ε-Fe 3 N 1.098 structure, space group P6 3 22, which were previously reported to be vacant. The stoichiometry of the nitride (N/Me ratio) and the level of disorder have a significant influence on the site occupancies and local magnetic moments in these iron-based nitrides. The substitution of Fe by Co in ε-Fe 2.322 Co 0.678 N 0.888 did not reduce the mean magnetic moment (μ m ) per metal atom at the Wyckoff 6 g site. NPD refinements showed that the magnetic moment per Fe atom in ε-Fe 3 N 1.098 (at 1.8 (4) μ B ) was slightly higher than that of ε-Fe 2.322 Co 0.678 N 0.888 , where the moment per Fe/Co atom is 1.7(2) μ B .
dc.description.sponsorshipNatural Environment Research Councilunder grant NE/P012167/1
dc.publisherElsevier
dc.titleNeutron diffraction study of the structural and magnetic properties of ε-Fe<inf>3</inf>N<inf>1.098</inf>and ε-Fe<inf>2.322</inf>Co<inf>0.678</inf>N<inf>0.888</inf>
dc.typeArticle
prism.endingPage105
prism.publicationDate2018
prism.publicationNameJournal of Alloys and Compounds
prism.startingPage99
prism.volume752
dc.identifier.doi10.17863/CAM.33335
dcterms.dateAccepted2018-04-11
rioxxterms.versionofrecord10.1016/j.jallcom.2018.04.143
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
rioxxterms.licenseref.startdate2018-07-05
dc.contributor.orcidRedfern, Simon [0000-0001-9513-0147]
dc.identifier.eissn1873-4669
dc.publisher.urlhttps://www.sciencedirect.com/science/article/pii/S0925838818314440?via=ihub
rioxxterms.typeJournal Article/Review
pubs.funder-project-idNatural Environment Research Council (NE/P012167/1)
cam.issuedOnline2018-04-13
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0925838818314440?via=ihub
rioxxterms.freetoread.startdate2019-04-13


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