On the phase of magneto-oscillations in graphite

Abstract

The problem of Dirac fermions in graphite subject to a perpendicular magnetic field is studied. We show analytically that the weak inter-layer interaction between the graphene sheets leads to anomalies in the Shubnikov-de Haas and de Haas-van Alphen magneto-oscillations governed by the orbits around extremal cross-sections of the graphite Fermi surface. The calculation of the Landau plot performed within a four band continuum model reveals that magneto-oscillations are aperiodic, except of the case of vanishing inter-layer interaction at the H point of the graphite Brillouin zone. Also for all other orbits along the H-K-H edge the magneto-oscillations are only asymptotically periodic in the quasi-classical limit, with the phase corresponding to massive fermions.

4 pages, 3 figures

References in corpus (8)

• Electric Field Effect in Atomically Thin Carbon Films
• First direct observation of Dirac fermions in graphite
• Tight--binding description of the quasiparticle dispersion of graphite and few--layer graphene
• Phase analysis of quantum oscillations in graphite
• Dirac and Normal Fermions in Graphite and Graphene: Implications to the Quantum Hall Effect
• 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
• Dirac Fermions in Graphite: the State of Art

Cited by in corpus (4)

• Dirac electronic states in graphene systems: Optical spectroscopy studies
• Millikelvin de Haas-van Alphen and Magnetotransport studies of Graphite
• Comment on "Consistent Interpretation of the Low-Temperature Magnetotransport in Graphite Using the Slonczewski-Weiss-McClure 3D Band-Structure Calculations" (arXiv:0902.1925)
• Gate-induced magneto-oscillation phase anomalies in graphene bilayers