Kondo behavior, ferromagnetic correlations, and crystal fields in the heavy-fermion compounds Ce3X (X = In, Sn).

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dc.contributor.authorWang, CHen_AU
dc.contributor.authorLawrence, JMen_AU
dc.contributor.authorChristianson, ADen_AU
dc.contributor.authorGoremychkin, EAen_AU
dc.contributor.authorFanelli, VRen_AU
dc.contributor.authorGofryk, Ken_AU
dc.contributor.authorBauer, EDen_AU
dc.contributor.authorRonning, Fen_AU
dc.contributor.authorThompson, JDen_AU
dc.contributor.authorde Souza, NRen_AU
dc.contributor.authorKolesnikov, AIen_AU
dc.contributor.authorLittrell, KCen_AU
dc.date.accessioned2010-07-27T04:31:35Zen_AU
dc.date.available2010-07-27T04:31:35Zen_AU
dc.date.issued2010-06-25en_AU
dc.date.statistics2010-06-25en_AU
dc.description.abstractWe report measurements of inelastic neutron scattering, magnetic susceptibility, magnetization, and the magnetic field dependence of the specific heat for the heavy Fermion compounds Ce3In and Ce3Sn. The neutron scattering results show that the excited crystal field levels have energies E1=13.2 meV, E2=44.8 meV for Ce3In and E1=18.5 meV, E2=36.1 meV for Ce3Sn. The Kondo temperature deduced from the quasielastic linewidth is 17 K for Ce3In and 40 K for Ce3Sn. The low-temperature behavior of the specific heat, magnetization, and susceptibility cannot be well described by J=1/2 Kondo physics alone, but require calculations that include contributions from the Kondo effect, broadened crystal fields, and ferromagnetic correlations, all of which are known to be important in these compounds. We find that in Ce3In the ferromagnetic fluctuation makes a 10%–15% contribution to the ground state doublet entropy and magnetization. The large specific heat coefficient γ in this heavy fermion system thus arises more from the ferromagnetic correlations than from the Kondo behavior. © 2010, American Physical Societyen_AU
dc.identifier.articlenumber235132en_AU
dc.identifier.citationWang, C. H., Lawrence, J. M., Christianson, A. D., Goremychkin, E. A., Fanelli, V. R., Gofryk, K., Bauer, E. D., Ronning, F., Thompson, J. D., de souza, N. R., Kolesnikov, A. I., & Littrell, K. C. (2010). Kondo behavior, ferromagnetic correlations, and crystal fields in the heavy-fermion compounds Ce3X (X = In, Sn). Physical Review B, 81(23), 235132. doi:10.1103/PhysRevB.81.235132en_AU
dc.identifier.govdoc2021en_AU
dc.identifier.issn1098-0121en_AU
dc.identifier.issue23en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.81.235132en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1921en_AU
dc.identifier.volume81en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectKondo effecten_AU
dc.subjectFerromagnetismen_AU
dc.subjectCrystal fielden_AU
dc.subjectInelastic scatteringen_AU
dc.subjectMagnetic susceptibilityen_AU
dc.subjectCorrelationsen_AU
dc.titleKondo behavior, ferromagnetic correlations, and crystal fields in the heavy-fermion compounds Ce3X (X = In, Sn).en_AU
dc.typeJournal Articleen_AU
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