# First direct observation of Dirac fermions in graphite

@article{Zhou2006FirstDO, 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}, year={2006}, volume={2}, pages={595-599} }

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

#### 369 Citations

Observation of Landau levels of Dirac fermions in graphite

- Physics
- 2007

The unique electronic behaviour of monolayer and bilayer graphene1,2 is a result of the unusual quantum-relativistic characteristics of the so-called ‘Dirac fermions’ (DFs) that carry charge in these… Expand

Electronic properties of graphene in a strong magnetic field

- Physics
- 2011

We review the basic aspects of electrons in graphene (two-dimensional graphite) exposed to a strong perpendicular magnetic field. One of its most salient features is the relativistic quantum Hall… Expand

Bound states of Dirac fermions in monolayer gapped graphene in the presence of local perturbations

- Physics
- 2016

In graphene,conductance electrons behave as massless relativistic particles and obey an analogue of the Dirac equation in two dimensions with a chiral nature.For this reason,the bounding of electrons… Expand

Dirac equation for quasi-particles in graphene and quantum field theory of their Coulomb interaction

- Physics
- 2012

There is evidence for existence of massless Dirac quasiparticles in graphene, which satisfy Dirac equation in (1+2) dimensions near the so called Dirac points which lie at the corners at the… Expand

Quasiparticle dynamics in graphene

- Physics
- 2007

The effectively massless, relativistic behaviour of graphene’s charge carriers—known as Dirac fermions—is a result of its unique electronic structure, characterized by conical valence and conduction… Expand

Dirac charge dynamics in graphene by infrared spectroscopy

- Physics
- 2008

A remarkable manifestation of the quantum character of electrons in matter is offered by graphene, a single atomic layer of graphite. Unlike conventional solids where electrons are described with the… Expand

Supersymmetric structure of quantum Hall effects in graphene

- Physics
- 2008

Abstract Electrons behave as Dirac fermions in graphene, though their speed is given by the Fermi velocity. In such a system the Zeeman splitting is exactly as large as the Landau level separation.… Expand

Heavy Dirac fermions in a graphene/topological insulator hetero-junction

- Physics
- 2016

The low energy physics of both graphene and surface states of three-dimensional topological insulators is described by gapless Dirac fermions with linear dispersion. In this work, we predict the… Expand

Collision-dominated spin transport in graphene and Fermi liquids

- Physics
- 2011

In a clean Fermi liquid, due to spin up/spin down symmetry, the dc spin current driven by a magnetic field gradient is finite even in the absence of impurities. Hence, the spin conductivity σs… Expand

Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures

- Physics, Medicine
- Science
- 2016

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

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