69 citations · 177 across the 8 of their papers we have counts for
8 papers
Graphene whisperitronics: transducing whispering gallery modes into electronic transport
Boris Brun, Viet-Hung Nguyen, Nicolas Moreau +6
When confined in circular cavities, graphene relativistic charge carriers occupy whispering gallery modes (WGM) in analogy to classical acoustic and optical fields. The rich geomet…
Quantum Hall nano-interferometer in graphene
N. Moreau, B. Brun, S. Somanchi +4
Quantum Hall edge states offer avenues for quasiparticle interferometry, provided that the ratio between phase coherence length and quantum Hall interferometer (QHI) size is large…
Contacts and upstream modes explain the electron-hole asymmetry in the graphene quantum Hall regime
Nicolas Moreau, Boris Brun, Sowmya Somanchi +4
Observations of electron-hole asymmetry in transport through graphene devices at high magnetic field challenge prevalent models of the graphene quantum Hall effect. Here, we study…
Upstream modes and antidots poison graphene quantum Hall effect
Nicolas Moreau, Boris Brun, Sowmya Somanchi +4
The quantum Hall effect is the seminal example of topological protection, as charge carriers are transmitted through one-dimensional edge channels where backscattering is prohibite…
Optimizing Dirac fermions quasi-confinement by potential smoothness engineering
Boris Brun, Nicolas Moreau, Sowmya Somanchi +7
With the advent of high mobility encapsulated graphene devices, new electronic components ruled by Dirac fermions optics have been envisioned and realized. The main building blocks…
Observation of the spin-orbit gap in bilayer graphene by one-dimensional ballistic transport
L. Banszerus, B. Frohn, T. Fabian +10
We report on measurements of quantized conductance in gate-defined quantum point contacts in bilayer graphene that allow the observation of subband splittings due to spin-orbit cou…
Imaging Dirac fermions flow through a circular Veselago lens
Boris Brun, Nicolas Moreau, Sowmya Somanchi +6
Graphene charge carriers behave as relativistic massless fermions, thereby exhibiting a variety of counter-intuitive behaviors. In particular, at p-n junctions, they behave as phot…
From diffusive to ballistic transport in etched graphene constrictions and nanoribbons
Sowmya Somanchi, Bernat Terrés, Julian Peiro +5
Graphene nanoribbons and constrictions are envisaged as fundamental components of future carbon-based nanoelectronic and spintronic devices. At nanoscale, electronic effects in the…