Magnetothermal Conductivity of Highly Oriented Pyrolytic Graphite in the Quantum Limit

Abstract

We report on the magnetic field (0T$\le B\le 9$T) dependence of the longitudinal thermal conductivity $\kappa (T,B)$ of highly oriented pyrolytic graphite in the temperature range 5 K $\le T\le$ 20 K for fields parallel to the $c-$axis. We show that $\kappa (T,B)$ shows large oscillations in the high-field region (B > 2 T) where clear signs of the Quantum-Hall effect are observed in the Hall resistance. With the measured longitudinal electrical resistivity we show that the Wiedemann-Franz law is violated in the high-field regime.

4 Figures, to be published in Physical Review B (2003)

References in corpus (8)

• Magnetic field driven metal-insulator phase transition in planar systems
• Reentrant Metallic Behavior of Graphite in the Quantum Limit
• Field-induced metal-insulator Field-induced metal-insulator transition in the c-axis resistivity of graphite
• Landau Level Quantization and Possible Superconducting Instabilities in Highly Oriented Pyrolitic Graphite
• Absence of Metal-Insulator-Transition and Coherent Interlayer Transport in oriented graphite in parallel magnetic fields
• Transport properties in the d-density-wave state in an external magnetic field: The Wiedemann-Franz law
• Thermal Conductivity in 3D NJL Model Under External Magnetic Field
• Thermal Conductivity Tensor in YBa${}_2$Cu${}_3$O${}_{7-x}$: Effects of a Planar Magnetic Field

Cited by in corpus (9)

• Transport of Dirac quasiparticles in graphene: Hall and optical conductivities
• Graphene Physics in Graphite
• Magnetic oscillations in planar systems with the Dirac-like spectrum of quasiparticle excitations II: transport properties
• Experimental Evidence for Two-Dimensional Magnetic Order in Proton Bombarded Graphite
• Magnetotransport and thermoelectricity in disordered graphene
• Integer Quantum Hall Effect in Graphite
• Electron-phonon scattering at the intersection of two Landau levels
• Anomalous Hall Effect in Graphite
• Magnetothermal Transport of Oriented Graphite at Low Temperatures