10 citations · 10 across the 2 of their papers we have counts for
10 papers
Steering the current flow in twisted bilayer graphene
Jesús Arturo Sánchez-Sánchez, Montserrat Navarro-Espino, Yonatan Betancur-Ocampo +2
A nanoelectronic device made of twisted bilayer graphene (TBLG) is proposed to steer the direction of the current flow. The ballistic electron current, injected at one edge of the…
Anomalous Floquet tunneling in uniaxially strained graphene
Yonatan Betancur-Ocampo, Parisa Majari, Diego Espitia +2
The interplay of strain engineering and photon-assisted tunneling of electrons in graphene is considered for giving rise to atypical transport phenomena. The combination of uniaxia…
Gradient-index electron optics in graphene pn junctions
Emmanuel Paredes-Rocha, Yonatan Betancur-Ocampo, Nikodem Szpak +1
We investigate the electron transport in smooth graphene pn junctions, generated by gradually varying electrostatic potentials. The numerically calculated coherent current flow pat…
Current vortices in aromatic carbon molecules
Thomas Stegmann, John A. Franco-Villafañe, Yenni P. Ortiz +6
The local current flow through three small aromatic carbon molecules, namely benzene, naphthalene and anthracene, is studied. Applying density functional theory and the non-equilib…
Electron optics in phosphorene pn junctions: Negative reflection and anti super-Klein tunneling
Yonatan Betancur-Ocampo, François Leyvraz, Thomas Stegmann
Ballistic electrons in phosphorene junctions show optical-like phenomena. Phosphorene is modeled by a tight-binding Hamiltonian that describes its electronic structure at low…
Spectral and transport properties of a -symmetric tight-binding chain with gain and loss
Adrian Ortega, Thomas Stegmann, Luis Benet +1
We derive a continuity equation to study transport properties in a -symmetric tight-binding chain with gain and loss in symmetric configurations. This allows us to id…