The electronic properties of graphene
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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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Elastic Gauge Fields in Weyl Semimetals.
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Unusual Dirac half-metallicity with intrinsic ferromagnetism in vanadium trihalide monolayers
TL;DR: Li et al. as discussed by the authors used density functional theory combined with the self-consistently determined Hubbard U approach (DFT+Uscf) to investigate the stability and magnetic structures of VCl3 and VI3 monolayers.
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Quantum Hall effect based on Weyl orbits in Cd 3 As 2
Cheng Zhang,Yi Zhang,Xiang Yuan,Shiheng Lu,Jinglei Zhang,Awadhesh Narayan,Yanwen Liu,Huiqin Zhang,Zhuoliang Ni,Ran Liu,Eun Sang Choi,Alexey Suslov,Stefano Sanvito,Li Pi,Hai-Zhou Lu,Andrew C. Potter,Faxian Xiu +16 more
TL;DR: Evidence of a new type of quantum Hall effect, based on Weyl orbits in nanostructures of the three-dimensional topological semimetal Cd3As2, is reported, which finds that the quantum Hall transport is strongly modulated by the sample thickness.
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Light-induced anomalous Hall effect in graphene
James McIver,B. Schulte,Falk-Ulrich Stein,T. Matsuyama,Gregor Jotzu,Guido Meier,Andrea Cavalleri,Andrea Cavalleri +7 more
TL;DR: In this paper, the authors make use of laser-triggered photoconductive switches to measure the ultrafast transport properties of monolayer graphene, driven by a mid-infrared femtosecond pulse of circularly polarized light.
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A first theoretical realization of honeycomb topological magnon insulator.
TL;DR: In this paper, it was shown that the Dirac points are gapped when the inversion symmetry of the lattice is broken by introducing a next-nearest neighbor Dzyaloshinskii-Moriya (DM) interaction.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.