Is U3Ni3Sn4 best described as near a quantum critical point?

Simple item page
dc.creatorBooth, C. H
dc.creatorShlyk, L.
dc.creatorNenkov, K.
dc.creatorHuber, J. G.
dc.creatorDe Long, L. E.
dc.date2004-01-31
dc.date.accessioned2026-07-07T02:56:13Z
dc.date.available2026-07-07T02:56:13Z
dc.descriptionAlthough most known non-Fermi liquid (NFL) materials are structurally or chemically disordered, the role of this disorder remains unclear. In particular, very few systems have been discovered that may be stoichiometric and well ordered. To test whether U3Ni3Sn4 belongs in this latter class, we present measurements of the x-ray absorption fine structure (XAFS) of polycrystalline and single-crystal U3Ni3Sn4 samples that are consistent with no measurable local structural disorder. We also present temperature-dependent specific heat data in applied magnetic fields as high as 8 T that show features that are inconsistent with the antiferromagnetic Griffiths' phase model, but do support the conclusion that a Fermi liquid/NFL crossover temperature increases with applied field. These results are inconsistent with theoretical explanations that require strong disorder effects, but do support the view that U3Ni3Sn4 is a stoichiometric, ordered material that exhibits NFL behavior, and is best described as being near an antiferromagnetic quantum critical point.
dc.description9 pages, 8 figures, in press with PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0402004
dc.identifierhttp://arxiv.org/abs/cond-mat/0402004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23237
dc.subjectStrongly Correlated Electrons
dc.titleIs U3Ni3Sn4 best described as near a quantum critical point?
dc.typetext

Files

Collections

arXiv