Evidence for semiconducting behavior with a narrow band gap of Bernal graphite

Abstract

We have studied the resistivity of a large number of highly oriented graphite samples with areas ranging from several mm${}^2$ to a few $\mu$m${}^2$ and thickness from $\sim 10$nm to several tens of micrometers. The measured resistance can be explained by the parallel contribution of semiconducting graphene layers with low carrier density $<10^9$ cm${}^{-2}$ and the one from metallic-like internal interfaces. The results indicate that ideal graphite with Bernal stacking structure is a narrow-gap semiconductor with an energy gap $E_g\sim 40$meV.

14 pages, 4 Figures, to be published in New Journal of Physics (in press, 2012)

References in corpus (19)

• The Raman Fingerprint of Graphene
• Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
• Quantum spin-liquid emerging in two-dimensional correlated Dirac fermions
• Electronic transport in graphene: A semi-classical approach including midgap states
• First direct observation of Dirac fermions in graphite
• Is graphene in vacuum an insulator?
• Metal-Insulator-Like Behavior in Semimetallic Bismuth and Graphite
• The role of hydrogen in room-temperature ferromagnetism at graphite surfaces
• Low energy excitations in graphite: The role of dimensionality and lattice defects
• Critical exponents of the semimetal-insulator transition in graphene: A Monte Carlo study
• Electrostatic Force Microscopy on Oriented Graphite Surfaces: Where Insulating and Conducting Behaviors Coexist
• A consistent interpretation of the low temperature magneto-transport in graphite using the Slonczewski--Weiss--McClure 3D band structure calculations
• Intrinsic Superconductivity at 25 K in Highly Oriented Pyrolytic Graphite
• Infrared probe of the anomalous magnetotransport of highly oriented pyrolytic graphite in the extreme quantum limit
• Electronic excitations and electron-phonon coupling in bulk graphite through Raman scattering in high magnetic fields
• Ballistic transport at room temperature in micrometer size multigraphene
• Effect of linear density of states on the quasi-particle dynamics and small electron-phonon coupling in graphite
• Length dependence of the resistance in graphite: Influence of ballistic transport
• The influence of Ga${}^{+}$-irradiation on the transport properties of mesoscopic conducting thin films

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• Granular superconductivity below 5~K in SPI-II pyrolytic graphite
• Nonintrinsic origin of the magnetic-field-induced metal-insulator and electronic phase transitions in graphite
• Influence of surface band bending on a narrow band gap semiconductor: Tunneling atomic force studies of graphite with Bernal and rhombohedral stacking orders
• Nanometers-thick Ferromagnetic Surface Produced by Laser Cutting of Diamond
• Linear magnetoresistance from Dirac-like fermions in graphite
• Record-Breaking Magnetoresistance at the Edge of a Microflake of Natural Graphite
• Fabrication and electrical transport properties of embedded graphite microwires in a diamond matrix
• Stretch-induced tunability of electrical transport properties of three-dimensional graphene-based foam structures
• Ion-Implanted ${}^8$Li Nuclear Magnetic Resonance in Highly Oriented Pyrolytic Graphite