Cyclotron motion in the vicinity of a Lifshitz transition in graphite

Abstract

Graphite, a model (semi)metal with trigonally warped bands, is investigated with magneto-absorption experiment and viewed as an electronic system in the vicinity of the Lifshitz transition. A characteristic pattern of up to twenty cyclotron resonance harmonics has been observed. This large number of resonances, their relative strengths and characteristic shapes trace the universal properties of the electronic states near a separatrix in the momentum space. Quantum-mechanical perturbative methods with respect to the trigonal warping term hardly describe the data which are, on the other hand, fairly well reproduced within a quasi-classical approach and conventional band structure model. Trigonal symmetry is preserved in graphite in contrast to a similar system, bilayer graphene.

5 pages, 3 figures plus Supplementary material, to appear in Phys. Rev. Lett

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• Landau quantization in coupled Weyl points: a case study of semimetal NbP
• Faraday rotation in bilayer and trilayer graphene in the quantum Hall regime
• Landau level spectroscopy of Bi${}_2$Te${}_3$
• Lifshitz transition and thermoelectric properties of bilayer graphene
• The energy scale of Dirac electrons in Cd3As2
• Controlling charge density order in 2H-TaSe${}_2$ using a van Hove singularity
• Lorentz-boost-driven magneto-optics in a Dirac nodal-line semimetal
• Addressing Shape and Extent of Weyl cones in TaAs by Landau level spectroscopy
• Quasiparticle interference patterns in bilayer graphene with trigonal warping
• Infrared magneto-spectroscopy of graphite in tilted fields
• Reconstructions of the electron dynamics in magnetic field and the geometry of complex Fermi surfaces
• Enhanced interaction effects in the vicinity of the topological transition
• Landau level spectroscopy in current solid state physics
• Quantum high-frequency conductivity oscillations in graphene multilayers and nodal semimetals in a tilted magnetic field