123 citations · 419 across the 16 of their papers we have counts for
7 papers · 1 filter
Super-Klein tunneling in 2D Lorentzian-type barriers in graphene
Alonso Contreras-Astorga, Francisco Correa, Luis Inzunza +2
We introduce a two-dimensional model of spin-1/2 Dirac fermions in graphene subjected to a highly tunable electric field, which exhibits super-Klein tunneling. The electric field c…
Flat-band engineering of quasi-one-dimensional systems via supersymmetric transformations
Vit Jakubsky, Kevin Zelaya
We introduce a systematic method to spectrally design quasi-one-dimensional crystal models described by the Dirac equation in the low-energy regime. The method is based on the supe…
Landau levels and snake states of pseudo-spin-1 Dirac-like electrons in gapped Lieb lattices
Kevin Zelaya, Vit Jakubský
This work reports the three-band structure associated with a Lieb lattice with arbitrary nearest and next-nearest neighbors hopping interactions. For specific configurations, the s…
Dirac fermions in armchair graphene nanoribbons trapped by electric quantum dots
Vit Jakubsky, Sengul Kuru, Javier Negro
We study the confinement of Dirac fermions in armchair graphene nanoribbons by means of a quantum-dot-type electrostatic potential. With the use of specific projection operators, w…
Super-Klein tunneling of Dirac fermions through electrostatic gratings in graphene
Alonso Contreras-Astorga, Francisco Correa, Vit Jakubsky
We use the Wick-rotated time-dependent supersymmetry to construct models of two-dimensional Dirac fermions in presence of an electrostatic grating. We show that there appears omnid…
On the propagation of Dirac fermions in graphene with the strain-induced inhomogeneous Fermi velocity
Alonso Contreras-Astorga, Vit Jakubsky, Alfredo Raya
We consider systems described by the two-dimensional Dirac equation where the Fermi velocity is inhomogeneous as a consequence of mechanical deformations. We show that the mechanic…