10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2k papers
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- University of MichiganUS1.7k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.7k papers
- Charles UniversityCZ1.7k papers
- Brookhaven National LaboratoryUS1.6k papers
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19 papers · 2 filters
Parity and valley degeneracy in multilayer graphene
Mikito Koshino, Edward McCann
We study spatial symmetry in general ABA-stacked multilayer graphene to illustrate how electronic spectra at the two valleys are related in a magnetic field. We show that the latti…
Extended excitons and compact helium-like biexcitons in type-II quantum dots
Bhavtosh Bansal, S. Godefroo, M. Hayne +2
We have used magneto-photoluminescence measurements to establish that InP/GaAs quantum dots have a type-II (staggered) band alignment. The average excitonic Bohr radius and the bin…
Dislocations and torsion in graphene and related systems
Fernando de Juan, Alberto Cortijo, María A. H. Vozmediano
A continuum model to study the influence of dislocations on the electronic properties of condensed matter systems is described and analyzed. The model is based on a geometrical for…
Quantum Resistance Standard Based on Epitaxial Graphene
Alexander Tzalenchuk, Samuel Lara-Avila, Alexei Kalaboukhov +7
We report development of a quantum Hall resistance standard accurate to a few parts in a billion at 300 mK and based on large area epitaxial graphene. The remarkable precision cons…
SiC Graphene Suitable For Quantum Hall Resistance Metrology
Samuel Lara-Avila, Alexei Kalaboukhov, Sara Paolillo +5
We report the first observation of the quantum Hall effect in epitaxial graphene. The result described in the submitted manuscript fills the yawning gap in the understanding of the…
Exploring the graphene edges with coherent electron focusing
Peter Rakyta, Andor Kormanyos, Jozsef Cserti +1
We study theoretically the coherent electron focusing in graphene nanoribbons. Using semiclassical and numerical tight binding calculations we show that perfect armchair edges give…
Quantum pumping in graphene
Elsa Prada, Pablo San-Jose, Henning Schomerus
We show that graphene-based quantum pumps can tap into evanescent modes, which penetrate deeply into the device as a consequence of Klein tunneling. The evanescent modes dominate p…
Trigonal warping and Berry's phase N pi in ABC-stacked multilayer graphene
Mikito Koshino, Edward McCann
The electronic band structure of ABC-stacked multilayer graphene is studied within an effective mass approximation. The electron and hole bands touching at zero energy support chir…
Singular elastic strains and magnetoconductance of suspended graphene
Elsa Prada, Pablo San-Jose, Gladys León +2
Graphene membranes suspended off electric contacts or other rigid supports are prone to elastic strain, which is concentrated at the edges and corners of the samples. Such a strain…
Signature of electronic excitations in the Raman spectrum of graphene
Oleksiy Kashuba, Vladimir I. Fal'ko
Inelastic light scattering from Dirac-type electrons in graphene is shown to be dominated by the generation of the inter-band electronic modes which are odd in terms of time-invers…
Semiclassical transport in nearly symmetric quantum dots II: symmetry-breaking due to asymmetric leads
Robert S. Whitney, Henning Schomerus, Marten Kopp
In this work - the second of a pair of articles - we consider transport through spatially symmetric quantum dots with leads whose widths or positions do not obey the spatial symmet…
Semiclassical transport in nearly symmetric quantum dots I: symmetry-breaking in the dot
Robert S. Whitney, Henning Schomerus, Marten Kopp
We apply the semiclassical theory of transport to quantum dots with exact and approximate spatial symmetries; left-right mirror symmetry, up-down mirror symmetry, inversion symmetr…
Weak localization in monolayer and bilayer graphene
K. Kechedzhi, E. McCann, Vladimir I. Fal'ko +3
We describe the weak localization correction to conductivity in ultra-thin graphene films, taking into account disorder scattering and the influence of trigonal warping of the Ferm…
Mesoscopic conductance fluctuations in graphene
D. W. Horsell, A. K. Savchenko, F. V. Tikhonenko +3
We study fluctuations of the conductance of micron-sized graphene devices as a function of the Fermi energy and magnetic field. The fluctuations are studied in combination with ana…
Graphene Andreev Billiards
J. Cserti, I. Hagymasi, A. Kormanyos
We studied the energy levels of graphene based Andreev billiards consisting of a superconductor region on top of a monolayer graphene sheet. For the case of Andreev retro-reflectio…
Disorder-induced pseudodiffusive transport in graphene nanoribbons
Petra Dietl, Georgo Metalidis, Dmitri Golubev +4
We study the transition from ballistic to diffusive and localized transport in graphene nanoribbons in the presence of binary disorder, which can be generated by chemical adsorbate…
Carbon nanotube quantum pumps
L. Oroszlany, V. Zolyomi, C. J. Lambert
Recently nanomechanical devices composed of a long stationary inner carbon nanotube and a shorter, slowly-rotating outer tube have been fabricated. In this Letter, we study the pos…
Influence of interlayer asymmetry on magneto-spectroscopy of bilayer graphene
M. Mucha-Kruczynski, E. McCann, V. I. Fal'ko
We present a self-consistent calculation of the interlayer asymmetry in bilayer graphene caused by an applied electric field in magnetic fields. We show how this asymmetry influenc…
Pseudospin valve in bilayer graphene: towards graphene-based pseudospintronics
Pablo San-Jose, Elsa Prada, Edward McCann +1
We propose a non-magnetic, pseudospin-based version of a spin valve, in which the pseudospin polarization in neighboring regions of a graphene bilayer is controlled by external gat…