Millikelvin de Haas-van Alphen and Magnetotransport studies of Graphite

Abstract

Recent studies of the electronic properties of graphite have produced conflicting results regarding the positions of the different carrier types within the Brillouin zone, and the possible presence of Dirac fermions. In this paper we report a comprehensive study of the de Haas-van Alphen, Shubnikov-de Haas and Hall effects in a sample of highly orientated pyrolytic graphite, at temperatures in the range 30 mK to 4 K and magnetic fields up to 12 T. The transport measurements confirm the Brillouin-zone locations of the different carrier types assigned by Schroeder et al.: electrons are at the K-point, and holes are near the H-points. We extract the cyclotron mass and scattering time for both carrier types from the temperature- and magnetic-field-dependences of the magneto-oscillations. Our results indicate that the holes experience stronger scattering and hence have a lower mobility than the electrons. We utilise phase-frequency analysis and intercept analysis of the 1/B positions of magneto-oscillation extrema to identify the nature of the carriers in graphite, whether they are Dirac or normal (Schrodinger) fermions. These analyses indicate normal holes and electrons of indeterminate nature.

References in corpus (6)

• Electric Field Effect in Atomically Thin Carbon Films
• Phase analysis of quantum oscillations in graphite
• Dirac and Normal Fermions in Graphite and Graphene: Implications to the Quantum Hall Effect
• Band-Contact Lines in Electron Energy Spectrum of Graphite
• Dirac fermions at the H point of graphite: Magneto-transmission studies
• A consistent interpretation of the low temperature magneto-transport in graphite using the Slonczewski--Weiss--McClure 3D band structure calculations

Cited by in corpus (11)

• Pressure-induced Lifshitz transition in black phosphorus
• Using the de Haas-van Alphen effect to map out the closed three-dimensional Fermi surface of natural graphite
• Ferromagnetic nodal-line metal in monolayer {\em h}-InC
• Possible high temperature superconducting transitions in disordered graphite obtained from room temperature deintercalated KC${}_8$
• Universal magnetic oscillations of DC conductivity in the incoherent regime of correlated systems
• Measurement of graphite tight-binding parameters using high field magneto-reflectance
• Unveiling the double-peak structure of quantum oscillations in the specific heat
• Taming the magnetoresistance anomaly in graphite
• Quantum interference in a macroscopic van der Waals conductor
• Quantized thermoelectric Hall plateau in the quantum limit of graphite as a nodal line semimetal
• Record-Breaking Magnetoresistance at the Edge of a Microflake of Natural Graphite