Determining the Wiedemann-Franz ratio from the thermal Hall conductivity: Application to Cu and YBa_2Cu_3O_6.95

Abstract

The Wiedemann-Franz (WF) ratio compares the thermal and electrical conductivities in a metal. We describe a new way to determine its value, based on the thermal Hall conductivity. The technique is applied to copper and to untwinned YBaCuO. In the latter, we uncover a T-linear dependence and suppression of the Hall-channel WF ratio. We discuss the implications of this suppressions. The general suppression of the WF ratio in systems with predominant electron-electron scattering is discussed.

4 pages in Tex, 4 figures in EPS

References in corpus (1)

• Quasiparticle thermal Hall angle and magnetoconductance in YBa_2Cu_3O_x

Cited by in corpus (56)

• Theory of universal incoherent metallic transport
• The onset of the vortex-like Nernst signal above Tc in La_{2-x}Sr_xCuO_4 and Bi_2Sr_{2-y}La_yCuO_6
• Anomalous Nernst and Righi-Leduc effects in Mn${}_3$Sn: Berry curvature and entropy flow
• Thermoelectric generation based on spin Seebeck effects
• Phonon hydrodynamics and ultrahigh-room-temperature thermal conductivity in thin graphite
• Theories of Low-Energy Quasi-Particle States in Disordered d-Wave Superconductors
• Non-Fermi liquids and the Wiedemann-Franz law
• Scaling theory of the cuprate strange metals
• Anomalous Thermal Diffusivity in Underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Thermal transport in the hidden-order state of URu${}_2$Si${}_2$
• Emergence of nontrivial magnetic excitations in a spin liquid state of kagome volborthite
• Anomalous quasiparticle transport in the superconducting state of CeCoIn5
• Giant enhancement of the thermal Hall conductivity κ_{xy} in the superconductor YBa_2Cu_3O_7
• Incipient nodal pairing in planar d-wave superconductors
• Experimental Determination of the Lorenz Number in Cu0.01Bi2Te2.7Se0.3 and Bi0.88Sb0.12
• Lorentz ratio of a compensated metal
• Phonon Thermal Transport of URu2Si2: Broken Translational Symmetry and Strong-Coupling of the Hidden Order to the Lattice
• High Temperature Superconductivity: the explanation
• A hydrodynamical description for magneto-transport in the strange metal phase of Bi-2201
• Fractional Electromagnetism in Quantum Matter and High-Energy Physics
• Hyperscaling violating black hole solutions and Magneto-thermoelectric DC conductivities in holography
• Lorenz number in high Tc superconductors: evidence for bipolarons
• Bose-Einstein condensation of strongly correlated electrons and phonons in cuprate superconductors
• Phonon drag thermal Hall effect in metallic strontium titanate
• Strongly Anisotropic Thermal and Electrical Conductivities of Self-assembled Silver Nanowire Network
• Hall effect and resistivity in underdoped cuprates
• How to detect edge electron states in (TMTSF)2X and Sr2RuO4 experimentally
• Phenomenological analysis of transverse thermoelectric generation and cooling performance in magnetic/thermoelectric hybrid systems
• The Lorenz number in the optimally doped and underdoped Eu-123 superconductor
• Isotope effects in high-Tc cuprate superconductors: Ultimate proof for bipolaron theory of superconductivity
• Enhancement of the Hall-Lorenz number in optimally doped YBa2Cu3O_7-d
• Giant anomalous thermal Hall effect in tilted type-I magnetic Weyl semimetal Co${}_3$Sn${}_2$S${}_2$
• Interaction corrections: temperature and parallel field dependencies of the Lorentz number in two-dimensional disordered metals
• Thermal conductivity and heat diffusion in the two-dimensional Hubbard model
• Breakdown of the Wiedemann-Franz law in strongly-coupled electron-phonon system, application to the cuprates
• Violation of the Wiedemann-Franz law as an evidence of the pseudogap in the iron-based superconductor Ba(Fe1-xCox)2As2
• Multiband thermal transport in the iron-based superconductor Ba1 xKxFe2As2
• Diamagnetism of real-space pairs above Tc in hole doped cuprates
• Thermal Hall conductivity of marginal Fermi liquids subject to out-of plane impurities in high-$T_c$ cuprates
• High temperature superconductivity due to the long-range electron-phonon interaction, application to isotope effects, thermomagnetic transport and nanoscale heterogeneity in cuprates
• The Lorenz number in CeCoIn${}_5$ inferred from the thermal and charge Hall currents
• Hall-Lorenz number paradox in cuprate superconductors
• Demystifying the Holographic Mystique
• Temperature dependence of electrical and thermal conduction in single silver nanowire
• Die Hard Holographic Phenomenology of Cuprates
• Abnormally enhanced Hall Lorenz number in the magnetic Weyl semimetal NdAlSi
• Thermal and thermoelectric transport coefficients for a two-dimensional SDW metal with weak disorder: A memory matrix calculation
• Unified approach to electrical and thermal transport in high-$T_c$ superconductors
• Lorenz ratios of diagonal and Hall conductivities in a Dirac electron liquid
• In-plane thermal conductivity of large single crystals of Sm-substituted (Y${}_{1-x}$Sm${}_x$)Ba${}_2$Cu${}_3$O${}_{7-\delta }$
• Drastic enhancement of the thermal Hall angle in a $d$-wave superconductor
• Thermal Hall conductivity of semimetallic graphite dominated by ambipolar phonon drag
• Phonon Softening and Weak Temperature-dependent Lorenz Number for Bio-supported Ultra-thin Ir Film
• Thermal-Hall conductivity and long-lived quasiparticles in CeCoIn${}_5$
• Landau Quasiparticles in Weak Power-Law Liquids
• Bipolaronic proximity and other unconventional effects in cuprate superconductors