Thermoelectric response near a quantum critical point: the case of CeCoIn5

Abstract

We present a study of thermoelectric coefficients in CeCoIn_5 down to 0.1 K and up to 16 T in order to probe the thermoelectric signatures of quantum criticality. In the vicinity of the field-induced quantum critical point, the Nernst coefficient nu exhibits a dramatic enhancement without saturation down to lowest measured temperature. The dimensionless ratio of Seebeck coefficient to electronic specific heat shows a minimum at a temperature close to threshold of the quasiparticle formation. Close to T_c(H), in the vortex-liquid state, the Nernst coefficient behaves anomalously in puzzling contrast with other superconductors and standard vortex dynamics.

arXiv comment4 pages, 4 figures,final published version

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• Locally Non-centrosymmetric Superconductivity in Multilayer Systems
• Colossal thermomagnetic response in the exotic superconductor URu2Si2
• Ca${}_3$Ir${}_4$Sn${}_{13}$: A weakly correlated nodeless superconductor
• Thermoelectric response of Fe${}_{1+y}$Te${}_{0.6}$Se${}_{0.4}$: evidence for strong correlation and low carrier density
• From Kondo Lattices to Kondo Superlattices
• The thermopower as a signature of quantum criticality in heavy fermions
• Experimental Setup for the Measurement of the Thermoelectric Power in Zero and Applied Magnetic Field
• Heavy Fermion superconductor CeCu${}_2$Si${}_2$ under high pressure: multiprobing the valence crossover
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• Thermoelectric studies of KxFe2-ySe2: weakly correlated superconductor
• Chirality Induced Tilted-Hill Giant Nernst Signal
• Anisotropic inelastic scattering and its interplay with superconductivity in URu${}_2$Si${}_2$
• Thermoelectricity of the Ferromagnetic Superconductor UCoGe
• Thermoelectric response near a quantum critical point of beta-YbAlB4 and YbRh2Si2: A comparative study
• Anomalous quantum criticality in the electron-doped cuprates
• Behavior of the Quantum Critical Point and the Fermi-liquid Domain in the Heavy Fermion Superconductor CeCoIn5 studied by resistivity
• Quantum criticality in Ce2PdIn8: thermoelectric study
• Colossal Seebeck coefficient of hopping electrons in (TMTSF)${}_2$PF${}_6$
• The thermopower as a fingerprint of the Kondo breakdown quantum critical point
• Enhanced Seebeck coefficient through the magnetic fluctuations in Sr${}_2$Ru${}_{1-x}{M}_x$O${}_4$ ($M=$ Co, Mn)
• Quantum Hall interferometry in triangular domains of marginally twisted bilayer graphene
• Ginzburg-Landau Analysis for the Antiferromagnetic Order in the Fulde-Ferrell-Larkin-Ovchinnikov Superconductor
• Crossover between Fermi liquid and non-Fermi liquid behavior in the non-centrosymmetric compound Yb${}_2$Ni${}_{12}$P${}_7$
• Nernst quantum oscillations in bulk semi-metals
• Excess entropy and breakdown of semiclassical description of thermoelectricity in twisted bilayer graphene close to half filling
• Vortexlike excitations in the heavy-fermion superconductor CeIrIn${}_5$
• Low-temperature thermopower study of YbRh2Si2
• Universal behavior in the Nernst effect of heavy fermion materials
• Search for the field-induced magnetic instability around the upper critical field of superconductivity in H || c in CeCoIn5
• Drastic enhancement of the thermal Hall angle in a $d$-wave superconductor
• Carrier-doping effect and anomalous transport properties in Ni-doped CeCoIn5 investigated by Hall resistivity measurements