Neutron diffraction study of MnNiGa2—structural and magnetic behaviour

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dc.contributor.authorWang, JLen_AU
dc.contributor.authorMa, Len_AU
dc.contributor.authorHofmann, Men_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorKennedy, SJen_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorDin, MFMen_AU
dc.contributor.authorHoelzel, Men_AU
dc.contributor.authorWu, GHen_AU
dc.contributor.authorDou, SXen_AU
dc.date.accessioned2016-12-06T23:03:44Zen_AU
dc.date.available2016-12-06T23:03:44Zen_AU
dc.date.issued2014-01-07en_AU
dc.date.statistics2016-12-07en_AU
dc.descriptionProceedings of the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia.en_AU
dc.description.abstractMnNiGa2 crystallizes in the L21 (Heusler) structure and has a ferromagnetic ordering temperature TC ∼ 192 K. Rietveld refinement of the neutron diffraction patterns indicates that the Ga atoms occupy the equivalent 8c position, while Mn and Ni share the 4a (0, 0, 0) and 4b (0.5, 0.5, 0.5) sites with a mixed occupancy of Mn and Ni atoms. It is found that that ∼83% of Mn and ∼17% Ni are located at the 4a site while ∼83% of Ni and ∼17% Mn occupy the 4b site. There is no evidence of a magneto-volume effect around TC. In agreement with this finding, our detailed critical exponent analyses of isothermal magnetization curves and the related Arrott plots confirm that the magnetic phase transition at TC is second order. © 2014,AIP Publishing LLC.en_AU
dc.identifier.articlenumber17A904en_AU
dc.identifier.citationWang, J. L., Ma, L., Hofmann, M., Avdeev, M., Kennedy, S. J., Campbell, S. J., Md Din, M. F., Hoelzel, M., & Dou, S. X. (2014). Neutron diffraction study of MnNiGa2—structural and magnetic behaviour. Paper presented at the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia. In Journal of Applied Physics, 115(17), 17A904. doi:10.1063/1.4857455en_AU
dc.identifier.conferenceenddate18 November 2010en_AU
dc.identifier.conferencename55th Annual Conference on Magnetism and Magnetic Materials, 2010.en_AU
dc.identifier.conferenceplaceAtlanta, Georgia.en_AU
dc.identifier.conferencestartdate14 November 2010en_AU
dc.identifier.govdoc7672en_AU
dc.identifier.issn17A904-1en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of Applied Physicsen_AU
dc.identifier.pagination17A904en_AU
dc.identifier.urihttp://dx.doi.org/10.1063/1.4857455en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8125en_AU
dc.identifier.volume5en_AU
dc.language.isoenen_AU
dc.publisherAIP Publishingen_AU
dc.subjectFerromagnetic materialsen_AU
dc.subjectAtomsen_AU
dc.subjectIsothermal processesen_AU
dc.subjectMagnetismen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectTemperature monitoringen_AU
dc.titleNeutron diffraction study of MnNiGa2—structural and magnetic behaviouren_AU
dc.typeConference paperen_AU
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