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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Large Spin-Valley Polarization in Monolayer MoTe2 on Top of EuO(111)
TL;DR: The electronic properties of monolayer MoTe2 on top of EuO(111) are studied by first-principles calculations to find out how the direction of the Hall current as well as the valley and spin polarizations can be tuned by an external magnetic field.
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Theory of Floquet band formation and local pseudospin textures in pump-probe photoemission of graphene
Michael A. Sentef,Martin Claassen,Alexander F. Kemper,Brian Moritz,Takashi Oka,James Freericks,Thomas P. Devereaux +6 more
TL;DR: It is predicted that short optical pulses attainable in experiments can lead to local spectral gaps and novel pseudospin textures in graphene by identifying new states with optically induced nontrivial changes of sublattice mixing that leads to Berry curvature corrections of electrical transport and magnetization.
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Work function engineering of graphene
TL;DR: This article highlights the different ways of surface modification, which have been used to specifically modify the band gap of graphene and its work function, and gives some indication of future challenges and possibilities.
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Novel effects of strains in graphene and other two dimensional materials
B. Amorim,B. Amorim,Alberto Cortijo,F. de Juan,F. de Juan,Adolfo G. Grushin,Francisco Guinea,Francisco Guinea,Francisco Guinea,A. Gutierrez-Rubio,Hector Ochoa,Hector Ochoa,Vincenzo Parente,Vincenzo Parente,Rafael Roldán,Pablo San-Jose,Jürgen Schiefele,Mauricio Sturla,María A. H. Vozmediano +18 more
TL;DR: In this paper, the role of strains in the structural and electronic properties of graphene and other two-dimensional compounds is discussed. But the role is not restricted to graphene, and they are being intensively studied in other two dimensional materials, such as the metallic dichalcogenides.
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Photonic topological Anderson insulators
Simon Stützer,Yonatan Plotnik,Yaakov Lumer,Paraj Titum,Netanel H. Lindner,Mordechai Segev,Mikael C. Rechtsman,Alexander Szameit +7 more
TL;DR: A counter-intuitive state—known as a topological Anderson insulator—in which strong disorder leads to the formation of topologically protected rather than trivial states is realized in a photonic system because disorder can enhance transport rather than arrest it.
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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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.