The magnon dynamics and spin exchange parameters of FePS3

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dc.contributor.authorWildes, ARen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorBewley, RIen_AU
dc.contributor.authorEnderle, Men_AU
dc.contributor.authorHicks, TJen_AU
dc.date.accessioned2014-05-15T04:47:31Zen_AU
dc.date.available2014-05-15T04:47:31Zen_AU
dc.date.issued2012-10-17en_AU
dc.date.statistics2014-05-15en_AU
dc.description.abstractThe spin waves in a powdered sample of a quasi-two-dimensional antiferromagnet, FePS(3), have been measured using neutron inelastic scattering. The data could be modelled and the exchange interactions determined using a two-dimensional Heisenberg Hamiltonian with single ion anisotropy. A suitable fit to the data could only be achieved by including magnetic interactions up to the third nearest neighbour, which is consistent with the findings for other members of the MPS(3) family (M = transition metal). The best fit parameters at 6 K were J(1) = 1.49 meV, J(2) = 0.04 meV, J(3) = -0.6 meV, with an anisotropy of Delta = 3.7 meV. Measurements as a function of temperature give a coarse measure of the behaviour of the anisotropy and the nature of the phase transition. © 2012, IOP Publishing LTD.en_AU
dc.identifier.articlenumber416004en_AU
dc.identifier.citationWildes, A. R., Rule, K. C., Bewley, R. I., Enderle, M., & Hicks, T. J. (2012). The magnon dynamics and spin exchange parameters of FePS3. Journal of Physics: Condensed Matter, 24(41), 416004. doi:10.1088/0953-8984/24/41/416004en_AU
dc.identifier.govdoc4577en_AU
dc.identifier.issn0953-8984en_AU
dc.identifier.issue41en_AU
dc.identifier.journaltitleJournal of Physics: Condensed Matteren_AU
dc.identifier.urihttp://dx.doi.org/10.1088/0953-8984/24/41/416004en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5577en_AU
dc.identifier.volume24en_AU
dc.language.isoenen_AU
dc.publisherIOP Publishing Ltden_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectNeutronsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectIonsen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectMagnetismen_AU
dc.titleThe magnon dynamics and spin exchange parameters of FePS3en_AU
dc.typeJournal Articleen_AU
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