A polarised neutron study of crystal field transitions in CeCu6

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dc.contributor.authorHarker, SJen_AU
dc.contributor.authorHicks, TJen_AU
dc.contributor.authorGoossens, DJen_AU
dc.contributor.authorMulders, AMen_AU
dc.contributor.authorFied, Yen_AU
dc.contributor.authorYu, DHen_AU
dc.contributor.authorKennedy, SJen_AU
dc.date.accessioned2021-09-06T05:16:57Zen_AU
dc.date.available2021-09-06T05:16:57Zen_AU
dc.date.issued2004-02-04en_AU
dc.date.statistics2021-08-24en_AU
dc.description.abstractCeCu6 is a heavy Fermion compound in which the Ce magnetic moment is suppressed by the Kondo effect resulting from the admixture of the local 4f electrons with the conduction electrons. Crystal field transitions between the low-lying states of the Ce ion have been observed using inelastic neutron scattering [1–3]. The transitions were contaminated by phonon scattering which can be corrected using a complex scaling function using a complementary spectrum of LaCu6. Neutron time of flight spectroscopy with neutron polarisation analysis permits the in situ separation of magnetic and lattice vibrational energy spectra. Preliminary experiments on LONGPOL allow an indicative separation of a broadened crystal field transition and features due to lattice vibrations [4]. The preliminary analysis indicated an inelastic spin-flip feature at -12 meV which is due to the crystal field while an inelastic non-spin-flip feature at -6 meV is predominantly due to phonon scattering. A more complete polarisation analysis study has been performed using a magnetic coil to switch the polarisation at the sample position between perpendicular and parallel to the scattering vector. These results and their interpretation are reported here.en_AU
dc.identifier.citationHarker, S. J., Hicks, T. J., Goossens, D. J., Mulders, A. M., Fied, Y., Yu. D., & Kennedy, S. J. (2004). A polarised neutron study of crystal field transitions in CeCu6. Poster presented to the 28th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, 3-6 February 2004. Retrieved from: https://www.physics.org.au/wp-content/uploads/cmm/2004/04handbook.pdfen_AU
dc.identifier.conferenceenddate6 February 2004en_AU
dc.identifier.conferencename28th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, New South Walesen_AU
dc.identifier.conferencestartdate3 February 2004en_AU
dc.identifier.issn1037-1214en_AU
dc.identifier.otherWP6en_AU
dc.identifier.urihttps://www.physics.org.au/wp-content/uploads/cmm/2004/04handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11599en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectFermionsen_AU
dc.subjectKondo effecten_AU
dc.subjectAntiferromagnetic materialsen_AU
dc.subjectElectronsen_AU
dc.subjectThermal conductionen_AU
dc.subjectCrystal fielden_AU
dc.subjectInelastic scatteringen_AU
dc.subjectLattice vibrationsen_AU
dc.subjectSpectraen_AU
dc.subjectSpin flipen_AU
dc.subjectMagnet coilsen_AU
dc.titleA polarised neutron study of crystal field transitions in CeCu6en_AU
dc.typeConference Posteren_AU
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