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Chemical and magnetic ordering in Fe 0.5 Ni 0.5 PS 3

Goossens, Darren; Stewart, Glen A.; Lee, W. T.; Studer, Andrew J

Description

The MPS3 family of layered magnetic materials (M = Fe2+, Ni2+, Mn2+, etc) shows many unusual properties. We have recently observed time-dependent magnetisation and two magnetic phase transitions in Fe0.5Ni0.5PS3, and here we use neutron diffraction and Mössbauer spectroscopy to explore the magnetic and structural ordering. Neutron diffraction shows that the staggered magnetisation lies closest to the Brillouin curve for J = 1, which is the spin for quenched Ni2+. In agreement with neutron...[Show more]

dc.contributor.authorGoossens, Darren
dc.contributor.authorStewart, Glen A.
dc.contributor.authorLee, W. T.
dc.contributor.authorStuder, Andrew J
dc.date.accessioned2015-12-10T23:12:49Z
dc.identifier.issn0304-3843
dc.identifier.urihttp://hdl.handle.net/1885/64143
dc.description.abstractThe MPS3 family of layered magnetic materials (M = Fe2+, Ni2+, Mn2+, etc) shows many unusual properties. We have recently observed time-dependent magnetisation and two magnetic phase transitions in Fe0.5Ni0.5PS3, and here we use neutron diffraction and Mössbauer spectroscopy to explore the magnetic and structural ordering. Neutron diffraction shows that the staggered magnetisation lies closest to the Brillouin curve for J = 1, which is the spin for quenched Ni2+. In agreement with neutron diffraction, Mössbauer spectroscopy shows a magnetic ordering temperature of ∼120K. It does not show any evidence of a second, low temperature (re)ordering, suggesting that the low temperature transition seen previously is a result of the time dependence of the magnetisation and is not apparent when the sample is given time to relax between measurements. The presence of three magnetic Fe-site environments when four chemical environments (Fe3, Fe2Ni, FeNi2 and Ni3) are possible may indicate that the mixture is not random, but shows some local ordering; the neutron results show evidence for a similar conclusion.
dc.publisherKluwer Academic Publishers
dc.sourceHyperfine Interactions
dc.titleChemical and magnetic ordering in Fe 0.5 Ni 0.5 PS 3
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume231
dc.date.issued2015
local.identifier.absfor091205 - Functional Materials
local.identifier.ariespublicationu4005981xPUB893
local.type.statusPublished Version
local.contributor.affiliationGoossens, Darren, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationStewart, Glen A., UNSW Canberra at the Australian Defence Force Academy
local.contributor.affiliationLee, W. T., Australian Nuclear Science and Technology Organisation
local.contributor.affiliationStuder, Andrew J, Australian Nuclear Science and Technology Organisation
local.description.embargo2037-12-31
local.bibliographicCitation.issue1-3
local.bibliographicCitation.startpage37
local.bibliographicCitation.lastpage44
local.identifier.doi10.1007/s10751-014-1108-6
local.identifier.absseo970103 - Expanding Knowledge in the Chemical Sciences
dc.date.updated2015-12-10T09:33:57Z
local.identifier.scopusID2-s2.0-84918539978
CollectionsANU Research Publications

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