The electronic properties of graphene
TLDR
In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.Abstract:
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 controlled by application of external electric and magnetic fields, or by altering sample geometry and/or topology. The Dirac electrons behave in unusual ways in tunneling, confinement, and the integer quantum Hall effect. The electronic properties of graphene stacks are discussed and vary with stacking order and number of layers. Edge (surface) states in graphene depend on the edge termination (zigzag or armchair) and affect the physical properties of nanoribbons. Different types of disorder modify the Dirac equation leading to unusual spectroscopic and transport properties. The effects of electron-electron and electron-phonon interactions in single layer and multilayer graphene are also presented.read more
Citations
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Reduced graphene oxides: the thinnest and most lightweight materials with highly efficient microwave attenuation performances of the carbon world
Bo Wen,Xia Wang,Wen-Qiang Cao,Honglong Shi,Ming-Ming Lu,Guocui Wang,Haibo Jin,Wenzhong Wang,Jie Yuan,Mao-Sheng Cao +9 more
TL;DR: R-GOs are highly promising fillers for microwave attenuation in the carbon family and that r-GO composites are high-performance EMI shielding materials with application anticipated to many fields.
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Density-functional tight-binding for beginners
Pekka Koskinen,Ville Mäkinen +1 more
TL;DR: In this paper, a pedagogical introduction to density-functional tight-binding (DFTB) method is given, where the authors derive it from the density functional theory, give the details behind the tight binding formalism, and give practical recipes for parametrization: how to calculate pseudo-atomic orbitals and matrix elements.
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The rare two-dimensional materials with Dirac cones
TL;DR: In this article, the von Neumann-Wigner theorem is used to explain the scarcity of Dirac cones in 2D systems, which leads to rigorous requirements on the symmetry, parameters, Fermi level, and band overlap of materials to achieve Dirac cone.
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Thermal transport across twin grain boundaries in polycrystalline graphene from nonequilibrium molecular dynamics simulations.
TL;DR: A critical grain size is identified below which the contribution of the tilt boundaries to the conductivity becomes comparable to that of the contribution from the grains themselves, which is significantly higher than that of any other thermoelectric interfaces reported in the literature.
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Graphynes and graphdyines
TL;DR: In this paper, the experimental and theoretical results that may give an insight into the current status and possible prospects of the family of hybridized carbon allotropes: graphynes (GYs) and graphdiynes (GDYs), are reviewed.
References
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Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
Book
Theory of elasticity
TL;DR: The theory of the slipline field is used in this article to solve the problem of stable and non-stressed problems in plane strains in a plane-strain scenario.
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Two-dimensional gas of massless Dirac fermions in graphene
Kostya S. Novoselov,A. K. Geim,Sergey V. Morozov,Da Jiang,Mikhail I. Katsnelson,Irina V. Grigorieva,S. V. Dubonos,A. A. Firsov +7 more
TL;DR: 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.