Apparent Violation of the Wiedemann-Franz law near a magnetic field tuned metal-antiferromagnetic quantum critical point

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dc.creatorSmith, M. F.
dc.creatorMcKenzie, Ross H.
dc.date2008-09-15
dc.date2009-01-28
dc.date.accessioned2026-07-07T12:34:43Z
dc.date.available2026-07-07T12:34:43Z
dc.descriptionThe temperature dependence of the interlayer electrical and thermal resistivity in a layered metal are calculated for Fermi liquid quasiparticles which are scattered inelastically by two-dimensional antiferromagnetic spin fluctuations. Both resistivities have a linear temperature dependence over a broad temperature range. Extrapolations to zero temperature made from this linear-$T$ range give values that appear to violate the Wiedemann-Franz law. However, below a low-temperature scale, which becomes small close to the critical point, a recovery of this law occurs. Our results describe recent measurements on CeCoIn$_5$ near a magnetic field-induced quantum phase transition. Hence, the experiments do not necessarily imply a non-Fermi liquid ground state.
dc.description4 pages, 2 figures; accepted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0809.2499
dc.identifierhttp://arxiv.org/abs/0809.2499
dc.identifierPhys. Rev. Lett. 101, 266403 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.266403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217538
dc.subjectStrongly Correlated Electrons
dc.titleApparent Violation of the Wiedemann-Franz law near a magnetic field tuned metal-antiferromagnetic quantum critical point
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