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The electronic properties of graphene
This article reviews the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations. The Dirac electrons can be
Making graphene visible
Microfabrication of graphene devices used in many experimental studies currently relies on the fact that graphene crystallites can be visualized using optical microscopy if prepared on top of Si
Tight-binding approach to uniaxial strain in graphene
We analyze the effect of tensional strain in the electronic structure of graphene. In the absence of electron-electron interactions, within linear elasticity theory, and a tight-binding approach, we
Electron-Electron Interactions in Graphene: Current Status and Perspectives
We review the problem of electron-electron interactions in graphene. Starting from the screening of long range interactions in these systems, we discuss the existence of an emerging Dirac liquid of
Observation of Van Hove singularities in twisted graphene layers
When a Van Hove singularity exists near the Fermi energy of a solid’s density of states, it can cause a variety of exotic phenomena to emerge. Scanning tunnelling microscope measurements indicate
Biased bilayer graphene: semiconductor with a gap tunable by the electric field effect.
It is demonstrated that the electronic gap of a graphene bilayer can be controlled externally by applying a gate bias and can be changed from zero to midinfrared energies by using fields of less, approximately < 1 V/nm, below the electric breakdown of SiO2.
Strain-Induced Pseudo–Magnetic Fields Greater Than 300 Tesla in Graphene Nanobubbles
Straining Graphene's Electronic States The conduction electrons in graphene, single sheets of graphite, can have very high mobilities. Under the influence of an applied magnetic field, a series of
Strong Light-Matter Interactions in Heterostructures of Atomically Thin Films.
Atomically thin graphene/WS2/graphene heterostructures exhibit enhanced light—matter interactions, leading to enhanced photon absorption and electron—hole creation.
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 of
Continuum model of the twisted graphene bilayer
J.M.B.L.S. was supported by Fundacao para a Ciencia e a Tecnologia (FCT) and is thankful for the hospitality of Boston University and of National University of Singapore. N.M.R.P. was supported by