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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Carbon Nanomaterials in Biosensors: Should You Use Nanotubes or Graphene?
TL;DR: This Review explores issues by presenting the latest advances in electrochemical, electrical, and optical biosensors that use carbon nanotubes and graphene, and critically compares the performance of the two carbon allotropes in this application.
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Review of chemical vapor deposition of graphene and related applications.
TL;DR: Graphene CVD on various metal substrates with an emphasis on Ni and Cu is reviewed, showing how few-layer graphene grown on Ni can function as flexible transparent conductive electrodes for organic photovoltaic cells and in field effect transistors.
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A stable three-dimensional topological Dirac semimetal Cd3As2
Zhongkai Liu,Juan Jiang,Bo Zhou,Zhijun Wang,Yi Zhang,Hongming Weng,Dharmalingam Prabhakaran,Sung-Kwan Mo,Han Peng,Pavel Dudin,Timur K. Kim,Moritz Hoesch,Zhong Fang,Xi Dai,Zhi-Xun Shen,Donglai Feng,Zahid Hussain,Yulin Chen +17 more
TL;DR: In this paper, it was shown that Cd3As2 is an experimental realization of a 3D Dirac semimetal that is stable at ambient conditions, using angle-resolved photoelectron spectroscopy.
Journal ArticleDOI
Scanning tunnelling microscopy and spectroscopy of ultra-flat graphene on hexagonal boron nitride
Jiamin Xue,Javier Sanchez-Yamagishi,Daniel Bulmash,Philippe Jacquod,Aparna Deshpande,Aparna Deshpande,Kenji Watanabe,Takashi Taniguchi,Pablo Jarillo-Herrero,Brian J. LeRoy +9 more
TL;DR: Scanning tunnelling microscopy is used to show that graphene conforms to hBN, as evidenced by the presence of Moiré patterns, but contrary to predictions, this conformation does not lead to a sizeable band gap because of the misalignment of the lattices.
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Hydrogen Sensors - A review
TL;DR: There are an immense number of sensors reported in the literature for hydrogen detection and in this article these sensors are classified into eight different operating principles, such as measuring range, sensitivity, selectivity and response time.
References
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Journal ArticleDOI
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.