First direct observation of Dirac fermions in graphite

  title={First direct observation of Dirac fermions in graphite},
  author={S. Y. Zhou and Gey-Hong Gweon and Jeff Graf and A. V. Fedorov and Catalin D. Spataru and Renee D. Diehl and Yakov Kopelevich and D-H Lee and Steven G. Louie and Alessandra Lanzara},
  journal={Nature Physics},
Originating from relativistic quantum field theory, Dirac fermions have been invoked recently to explain various peculiar phenomena in condensed-matter physics, including the novel quantum Hall effect in graphene1,2, the magnetic-field-driven metal–insulator-like transition in graphite3,4, superfluidity in 3He (ref. 5) and the exotic pseudogap phase of high-temperature superconductors6,7. Despite their proposed key role in those systems, direct experimental evidence of Dirac fermions has been… Expand

Paper Mentions

Observation of Landau levels of Dirac fermions in graphite
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Supersymmetric structure of quantum Hall effects in graphene
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Heavy Dirac fermions in a graphene/topological insulator hetero-junction
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The direct observation and manipulation of chirality and pseudospin polarization in the tunneling of electrons between two almost perfectly aligned graphene crystals are reported and a technique for preparing graphene’s Dirac electrons in a particular quantum chiral state in a selected valley is demonstrated. Expand


Two-dimensional gas of massless Dirac fermions in graphene
This study reports an experimental study of a condensed-matter system (graphene, a single atomic layer of carbon) in which electron transport is essentially governed by Dirac's (relativistic) equation and reveals a variety of unusual phenomena that are characteristic of two-dimensional Dirac fermions. Expand
Experimental observation of the quantum Hall effect and Berry's phase in graphene
An experimental investigation of magneto-transport in a high-mobility single layer of graphene observes an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene. Expand
Electronic properties of disordered two-dimensional carbon
Two-dimensional carbon, or graphene, is a semimetal that presents unusual low-energy electronic excitations described in terms of Dirac fermions. We analyze in a self-consistent way the effects ofExpand
Field theory in superfluid 3He: what are the lessons for particle physics, gravity, and high-temperature superconductivity?
  • G. Volovik
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1999
High-temperature superconductors are believed to belong to class 4, which has gapless fermionic quasiparticles with a "relativistic" spectrum close to gap nodes, which allows application of ideas developed for superfluid 3He-A. Expand
Electron spectral function and algebraic spin liquid for the normal state of underdoped high T(c) superconductors.
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Unconventional Quasiparticle Lifetime in Graphite.
The influence of electron-electron scattering on quasiparticle lifetimes in graphite is calculated and the inverse lifetime increases linearly with energy, in agreement with recent experiments. Expand
Electronic and magnetic properties of nanographite ribbons
Electronic and magnetic properties of ribbon-shaped nanographite systems with zigzag and armchair edges in a magnetic field are investigated by using a tight-binding model. One of the most remarkableExpand
First-principles study of the electronic properties of graphite.
The agreement obtained in the framework of the density-functional theory for electronic energies at the Fermi level is surprisingly good. Expand
Electronic properties of graphene multilayers.
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