Results 1 to 10 of about 473,719 (315)

Raman spectrum of graphene and graphene layers. [PDF]

open access: yesPhysical Review Letters, 2006
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. We show that its electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers. The D peak second order changes in shape, width, and position for an increasing number of layers, reflecting the change in the ...
A. Ferrari   +10 more
semanticscholar   +4 more sources

Unconventional superconductivity in magic-angle graphene superlattices [PDF]

open access: yesNature, 2018
The behaviour of strongly correlated materials, and in particular unconventional superconductors, has been studied extensively for decades, but is still not well understood.
Yuan Cao   +6 more
semanticscholar   +1 more source

Correlated insulator behaviour at half-filling in magic-angle graphene superlattices [PDF]

open access: yesNature, 2018
A van der Waals heterostructure is a type of metamaterial that consists of vertically stacked two-dimensional building blocks held together by the van der Waals forces between the layers.
Yuan Cao   +11 more
semanticscholar   +1 more source

The electronic properties of graphene [PDF]

open access: yesReviews of Modern Physics, 2007
This article reviews the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations.
A. Neto   +4 more
semanticscholar   +1 more source

Two-dimensional gas of massless Dirac fermions in graphene [PDF]

open access: yesNature, 2005
Quantum electrodynamics (resulting from the merger of quantum mechanics and relativity theory) has provided a clear understanding of phenomena ranging from particle physics to cosmology and from astrophysics to quantum chemistry.
K. Novoselov   +7 more
semanticscholar   +1 more source

Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils [PDF]

open access: yesScience, 2009
Growing Graphene The highest quality graphene samples, single-atom-thick layers of carbon, are suspended flakes exfoliated from graphite, but these samples are very small in size (square micrometers).
Xuesong Li   +12 more
semanticscholar   +1 more source

Rayleigh Imaging of Graphene and Graphene Layers [PDF]

open access: yesNano Letters, 2007
8 pages, 9 ...
Casiraghi, C.   +7 more
openaire   +6 more sources

Graphene spintronics [PDF]

open access: yesNature Nanotechnology, 2014
47 Pages, 6 ...
Han, W.   +3 more
openaire   +4 more sources

Chaotic dynamics of graphene and graphene nanoribbons [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2020
We study the chaotic dynamics of graphene structures, considering both a periodic, defect free, graphene sheet and graphene nanoribbons (GNRs) of various widths. By numerically calculating the maximum Lyapunov exponent, we quantify the chaoticity for a spectrum of energies in both systems. We find that for all cases, the chaotic strength increases with
M. Hillebrand   +4 more
openaire   +3 more sources

Raman spectroscopy as a versatile tool for studying the properties of graphene. [PDF]

open access: yesNature Nanotechnology, 2013
Raman spectroscopy is an integral part of graphene research. It is used to determine the number and orientation of layers, the quality and types of edge, and the effects of perturbations, such as electric and magnetic fields, strain, doping, disorder and
A. Ferrari, D. Basko
semanticscholar   +1 more source

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