First-order magnetic phase transition in TmGa

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dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorAvdeev, Men_AU
dc.date.accessioned2021-08-02T22:31:21Zen_AU
dc.date.available2021-08-02T22:31:21Zen_AU
dc.date.issued2015-02-06en_AU
dc.date.statistics2021-07-20en_AU
dc.description.abstractIn a recent paper we determined the magnetic structure of the intermetallic compound TmGa using a combination of neutron diffraction and 169Tm Mössbauer spectroscopy. This compound shows two magnetic ‘events’ in its ac-susceptibility, at 15(1) K and 12(1) K. The upper transition is to an incommensurate antiferromagnetic structure which gives way to a dominant ferromagnetic structure at the lower transition. However, the Mössbauer results suggested that the 12 K transition is in fact first-order. In order to resolve this question, we have carried out a high-resolution, neutron diffraction thermal scan around these magnetic ordering events and we have observed clear thermal hysteresis in the behaviour of the magnetic scattering intensity. The observation of such hysteresis confirms our earlier suggestion of a first-order magnetic ordering in TmGa.en_AU
dc.identifier.citationCadogan, J. M., & Avdeev, M. (2015). First-order magnetic phase transition in TmGa. Paper presented at 39th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 3 – 6 February 2015. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2015/Wagga2015_10_Handbook.pdfen_AU
dc.identifier.conferenceenddate6 February 2015en_AU
dc.identifier.conferencename39th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate3 February 2015en_AU
dc.identifier.isbn978-0-646-59459-0en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11237en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectGallium alloysen_AU
dc.subjectHysteresisen_AU
dc.subjectIntermetallic compoundsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPhase transformationsen_AU
dc.subjectMagnetic momentsen_AU
dc.subjectScatteringen_AU
dc.subjectMoessbauer effecten_AU
dc.subjectThermal analysisen_AU
dc.subjectTemperature dependenceen_AU
dc.titleFirst-order magnetic phase transition in TmGaen_AU
dc.typeConference Abstracten_AU
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