Hybridization-driven gap in U3Bi4Ni3: a 209Bi NMR/NQR study

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dc.creatorBaek, S. -H.
dc.creatorCurro, N. J.
dc.creatorKlimczuk, T.
dc.creatorSakai, H.
dc.creatorBauer, E. D.
dc.creatorRonning, F.
dc.creatorThompson, J. D.
dc.date2009-02-09
dc.date2009-05-20
dc.date.accessioned2026-07-07T13:16:20Z
dc.date.available2026-07-07T13:16:20Z
dc.descriptionWe report 209Bi NMR and NQR measurements on a single crystal of the Kondo insulator U3Bi4Ni3. The 209Bi nuclear spin-lattice relaxation rate ($T_1^{-1}$) shows activated behavior and is well-fit by a spin gap of 220 K. The 209Bi Knight shift (K) exhibits a strong temperature dependence arising from 5f electrons, in which K is negative at high temperatures and increases as the temperature is lowered. Below 50 K, K shows a broad maximum and decreases slightly upon further cooling. Our data provide insight into the evolution of the hyperfine fields in a fully gapped Kondo insulator based on 5f electron hybridization.
dc.description4 pages, 4 figures, submitted to Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/0902.1468
dc.identifierhttp://arxiv.org/abs/0902.1468
dc.identifierPhy. Rev. B 79, 195120 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.195120
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230757
dc.subjectStrongly Correlated Electrons
dc.titleHybridization-driven gap in U3Bi4Ni3: a 209Bi NMR/NQR study
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