Determination of the crystal field levels in TmV2Al20

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dc.contributor.authorWhite, Ren_AU
dc.contributor.authorHutchison, WDen_AU
dc.contributor.authorIles, GNen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorNamiki, Ten_AU
dc.contributor.authorNishimura, Ken_AU
dc.date.accessioned2022-08-29T22:14:49Zen_AU
dc.date.available2022-08-29T22:14:49Zen_AU
dc.date.issued2017-01-31en_AU
dc.date.statistics2021-09-24en_AU
dc.description.abstractRecent interest in so called caged rare earth compounds of the RM2Al20-type (R = lanthanide, M = transition metal) follow from their fascinating physical and magnetic properties at low temperatures. Recent work on PrV2Al20 and PrTi2Al20 revealed unusual phenomena, including a quadrupolar Kondo effect and superconductivity, brought about by the cubic symmetry of the Pr3+ site inducing a non-magnetic ground state in the ion. As a hole analogue of the PrV2Al20 compound, TmV2Al20 has been investigated for equivalent heavy Fermion behaviour at low temperatures. In previous work, specific heat and magnetisation data were modelled with the crystal field parameters W = 0.5 K and x = -0.6 based on the Lea, Leask and Wolf formalism. However, the experimental zero field specific heat near 0.5 K could only be matched in the modelled curves using an artificial ground state broadening. In this work inelastic neutron scattering data obtained from the PELICAN time of flight spectrometer located at the OPAL reactor, Lucas Heights has allowed further refinement of the values to W = 0.42(1) K and x = -0.63(1). In addition the CEF transitions are found to be very broad, as required for the specific heat, and suggestive of strong 4f-conduction electron coupling.en_AU
dc.identifier.citationWhite, R., Hutchison, W. D., Iles, G. N., Mole, R. A., Cadogan, J. M., Namiki, T., & Nishimura, K. (2017). Determination of the crystal field levels in TmV2Al20. Poster presented to the 41st Annual Condensed Matter and Materials Meeting, 31st January - 3rd February 2017 Charles Sturt University Wagga Wagga, NSW, Australia. (pp.50). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdfen_AU
dc.identifier.conferenceenddate3 February 2017en_AU
dc.identifier.conferencenameAustralian and New Zealand Institutes of Physics 41st Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate31 January 2017en_AU
dc.identifier.otherWP9en_AU
dc.identifier.pagination50en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13657en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAlloysen_AU
dc.subjectEnriched uranium reactorsen_AU
dc.subjectExperimental reactorsen_AU
dc.subjectIrradiation reactorsen_AU
dc.subjectIsotope production reactorsen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectPhysical propertiesen_AU
dc.subjectPool type reactorsen_AU
dc.subjectRare earth alloysen_AU
dc.subjectReactorsen_AU
dc.subjectResearch and test reactorsen_AU
dc.subjectScatteringen_AU
dc.subjectSpectrometersen_AU
dc.titleDetermination of the crystal field levels in TmV2Al20en_AU
dc.typeConference Posteren_AU
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