On the roughness of single- and bi-layer graphene membranes
Jannik C. Meyer,Jannik C. Meyer,A. K. Geim,Mikhail I. Katsnelson,K. S. Novoselov,Dirk Obergfell,S. Roth,Caglar Girit,Caglar Girit,Alex Zettl,Alex Zettl +10 more
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TLDR
In this paper, a detailed transmission electron microscopy and electron diffraction study of the thinnest possible membrane, a single layer of carbon atoms suspended in vacuum and attached only at its edges, is presented.About:
This article is published in Solid State Communications.The article was published on 2007-07-01 and is currently open access. It has received 575 citations till now. The article focuses on the topics: Membrane & Graphene.read more
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Zero-energy states in corrugated bilayer graphene
TL;DR: In this paper, the Atiyah-Singer index theorem was applied to the case of bilayer graphene and proved the existence of zero-energy modes for this case, which leads to the appearance of midgap states in corrugated graphene and topologically protects zero energy Landau level in single-layer graphene.
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Corrugation of Chemically Converted Graphene Monolayers on SiO2
TL;DR: Experimental observations and molecular dynamics simulations show that interaction with the substrate greatly suppresses the intrinsic corrugation of graphene materials, suggesting that the substrate roughness, not the chemical addends nor the thermal cycling, is the predominant determinant in the graphene corrugations.
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Low voltage transmission electron microscopy of graphene.
Alicja Bachmatiuk,Jiong Zhao,Sandeep Gorantla,Ignacio Guillermo Gonzalez Martinez,Jerzy Wiedermann,Changgu Lee,Juergen Eckert,Mark H. Rümmeli +7 more
TL;DR: The advent of aberration correctors was timely in that it allowed transmission electron microscopes to operate with reduced acceleration voltages, so that damage to graphene is avoided while still providing atomic resolution.
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Vibrational characteristics of bilayer graphene sheets
TL;DR: In this article, the vibration characteristics of layer graphene sheets are investigated using analytical and atomistic finite element approaches and various possible scenarios, namely different geometrical configuration (armchair and zigzag), boundary conditions, and aspect ratio are considered in the present study.
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Gauge fields and curvature in graphene
TL;DR: In this paper, the low energy excitations of graphene can be described by a massless Dirac equation in two spacial dimensions and a covariant formalism gives rise to an effective hamiltonian with various extra terms.
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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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.
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Raman spectrum of graphene and graphene layers.
Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TL;DR: This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.
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Experimental observation of the quantum Hall effect and Berry's phase in graphene
TL;DR: In this paper, an experimental investigation of magneto-transport in a high-mobility single layer of Graphene is presented, where an unusual half-integer quantum Hall effect for both electron and hole carriers in graphene is observed.
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Two-dimensional atomic crystals
Kostya S. Novoselov,Da Jiang,Fred Schedin,Timothy J. Booth,V. V. Khotkevich,Sergey V. Morozov,Andre K. Geim +6 more
TL;DR: By using micromechanical cleavage, a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides are prepared and studied.