The electronic properties of graphene
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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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Continuity of graphene on polycrystalline copper
Haider I. Rasool,Haider I. Rasool,Emil B. Song,Matthew J. Allen,Jonathan K. Wassei,Richard B. Kaner,Kang L. Wang,Bruce H. Weiller,James K. Gimzewski +8 more
TL;DR: The results reveal that the growth of macroscopic pristine graphene is not limited by the underlying copper structure, and growth models including a stagnant catalytic surface do not apply to graphene growth on copper.
Journal ArticleDOI
Tunable Acoustic Valley-Hall Edge States in Reconfigurable Phononic Elastic Waveguides
Ting-Wei Liu,Fabio Semperlotti +1 more
TL;DR: In this paper, the authors show that topological edge states can be achieved at a boundary or interface between two elastic waveguides having broken space-inversion symmetry, by applying a controlled strain field, while the resulting edge states show a relatively high insensitivity to defects.
Journal ArticleDOI
Induced magnetism of carbon atoms at the graphene/Ni(111) interface
Martin Weser,Y. Rehder,Karsten Horn,Muriel Sicot,M. Fonin,Alexei Preobrajenski,Elena Voloshina,Eberhard Goering,Yuriy Dedkov +8 more
TL;DR: In this paper, an element-specific investigation of electronic and magnetic properties of the graphene/Ni(111) system was performed using x-ray magnetic circular dichroism, and the occurrence of an induced magnetism of the carbon atoms in the graphene layer was observed.
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Prediction of large-gap two-dimensional topological insulators consisting of bilayers of group III elements with Bi.
Feng-Chuan Chuang,Liang-Zi Yao,Zhi-Quan Huang,Yu-Tzu Liu,Chia-Hsiu Hsu,Tanmoy Das,Hsin Lin,Arun Bansil +7 more
TL;DR: The findings suggest that the buckled honeycomb structure is a versatile platform for hosting nontrivial topological states and spin-polarized Dirac fermions with the flexibility of chemical and mechanical tunability.
Journal ArticleDOI
A novel structure for tunable terahertz absorber based on graphene.
TL;DR: This paper proposed an "uneven dielectric slab structure" for the terahertz (THz) tunable absorber based on graphene, which consists of graphene-dielectric stacks and an electric conductor layer, which is easy to fabricate in the manufacturing technique.
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.