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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Artificial gauge fields in materials and engineered systems
Monika Aidelsburger,Monika Aidelsburger,Monika Aidelsburger,Sylvain Nascimbene,Nathan Goldman +4 more
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Electronic properties of graphene multilayers
TL;DR: In this article, the effects of disorder in the electronic properties of graphene multilayers, with special focus on the bilayer and the infinite stack, have been studied, and it is shown that at low energies and long wavelengths, the electronic self-energies and density of states exhibit behavior with divergences near half filling.
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High-contrast terahertz wave modulation by gated graphene enhanced by extraordinary transmission through ring apertures.
Weilu Gao,Jie Shu,Kimberly S. Reichel,Daniel V. Nickel,Xiaowei He,Gang Shi,Robert Vajtai,Pulickel M. Ajayan,Junichiro Kono,Daniel M. Mittleman,Qianfan Xu +10 more
TL;DR: A ∼50% amplitude modulation of THz waves with gated single-layer graphene is demonstrated by the use of extraordinary transmission through metallic ring apertures placed right above the graphene layer, promising complementary metal-oxide-semiconductor compatible THz modulators with tailored operation frequencies, large on/off ratios, and high speeds.
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A first-principles study of gas adsorption on germanene
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Spin Lifetimes Exceeding 12 ns in Graphene Nonlocal Spin Valve Devices
Marc Drögeler,Christopher Franzen,Frank Volmer,Tobias Pohlmann,Luca Banszerus,Maik Wolter,Kenji Watanabe,Takashi Taniguchi,Christoph Stampfer,Christoph Stampfer,Bernd Beschoten +10 more
TL;DR: It is demonstrated that the spin lifetime does not depend on the contact resistance area products when comparing all bottom-up devices indicating that spin absorption at the contacts is not the predominant source for spin dephasing.
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.