140 citations · 527 across the 22 of their papers we have counts for
22 papers
Probing quantum geometric capacitance via photonic spin Hall effect
Yahir Fernández-Méndez, Ramón Carrillo-Bastos, Jesús A. Maytorena
The non-dissipative quasistatic longitudinal optical response of insulators is characterized by an intrinsic geometric capacitance, determined by the ratio of the quantum metric to…
Band structure and optical response of Kekulé-modulated model
Luis E. Sánchez-González, Miguel A. Mojarro, Jeús A. Maytorena +1
We study the electronic band structure and optical response of a hybrid model, a model featuring a Kekulé pattern modulation. Such a hybr…
Spin-valley locking in Kekulé-distorted graphene with Dirac-Rashba interactions
David A. Ruiz-Tijerina, Jesús Arturo Sánchez-Sánchez, Ramon Carrillo-Bastos +2
The joint effects of Kekulé lattice distortions and Rashba-type spin-orbit coupling on the electronic properties of graphene are explored. We modeled the position dependence of the…
Waveguiding in massive two-dimensional Dirac systems
V. G. Ibarra-Sierra, E. J. Robles-Raygoza, J. C. Sandoval-Santana +1
The study of waveguide propagating modes is essential for achieving directional electronic transport in two-dimensional materials. Simultaneously, exploring potential gaps in these…
Thermal difference reflectivity of tilted 2D Dirac materials
M. A. Mojarro, R. Carrillo-Bastos, Jesús A. Maytorena
Deviation from perfect conical dispersion in Dirac materials, such as the presence of mass or tilting, enhances control and directionality of electronic transport. To identify thes…
Kekulé Induced Valley Birefringence and Skew Scattering in Graphene
Elias Andrade, Ramon Carrillo-Bastos, Mahmoud M. Asmar +1
In graphene, a Kekulé-Y bond texture modifies the electronic band structure generating two concentric Dirac cones with different Fermi velocities lying in the Γ-point in reciprocal…
Ballistic guided electrons against disorder in graphene nanoribbons
E. J. Robles-Raygoza, V. G. Ibarra-Sierra, J. C. Sandoval-Santana +1
Graphene nanoribbons (GNRs) are natural waveguides for electrons in graphene. Nevertheless, unlike micron-sized samples, conductance is nearly suppressed in these narrow graphene s…
Hyperbolic plasmons in massive tilted 2D Dirac materials
M. A. Mojarro, R. Carrillo-Bastos, Jesús A. Maytorena
We explore topological transitions in the type of propagation of surface electromagnetic modes in massive anisotropic tilted Dirac systems. The presence of tilting and mass gives r…
Valley-driven Zitterbewegung in Kekulé-distorted graphene
Alex Santacruz, Priscilla E. Iglesias, Ramon Carrillo-Bastos +1
Graphene deposited on top of a Copper(111) substrate may develop a Y-shaped Kekulé bond texture (Kekulé-Y), locking the momentum of its Dirac fermions with its valley degree of fre…
Electronic spectrum of Kekule patterned graphene considering second neighbor-interactions
Elias Andrade, Gerardo G. Naumis, Ramon Carrillo-Bastos
The effects of second-neighbor interactions in Kekule patterned graphene electronic properties are studied starting from a tight-binding Hamiltonian. Thereafter, a low-energy effec…
Optical properties of massive anisotropic tilted Dirac systems
M. A. Mojarro, R. Carrillo-Bastos, Jesús A. Maytorena
We explore the effect of valley-contrasting gaps in the optical response of two-dimensional anisotropic tilted Dirac systems. We study the spectrum of intraband and interband trans…
Dynamical Floquet spectrum of Kekulé-distorted graphene under normal incidence of electromagnetic radiation
M. A. Mojarro, V. G. Ibarra-Sierra, J. C. Sandoval-Santana +2
Electromagnetic dressing by a high-frequency field drastically modifies the electronic transport properties on Dirac systems. Here its effects on the energy spectrum of graphene wi…
Electron transitions for Dirac Hamiltonians with flat-bands under electromagnetic radiation and its application to the graphene model
M. A. Mojarro, V. G. Ibarra-Sierra, J. C. Sandoval-Santana +2
In a system with a Dirac-like linear dispersion there are always states that fulfill the resonance condition for electromagnetic radiation of arbitrary frequency . When a flat b…
Time-diffraction and Zitterbewegung of two-dimensional massless Dirac excitations
Elmer Cruz, Ramon Carrillo-Bastos, Jorge Villavicencio
We explore the dynamics of two-dimensional massless Dirac-fermions within a quantum shutter approach, which involves the time-evolution of an initial cut-off plane wave. We show th…
Resonant transport in Kekule-distorted graphene nanoribbons
Elias Andrade, Ramon Carrillo-Bastos, Pierre A. Pantaleón +1
The formation of a superlattice in graphene can serve as a way to modify its electronic bandstructure and thus to engineer its electronic transport properties. Recent experiments h…
Band Gaps and Wavefunctions of Electrons Coupled to Pseudo Electromagnetic Waves in Rippled Graphene
Ramon Carrillo-Bastos, Gerardo G. Naumis
The effects of a propagating sinusoidal out-of-plane flexural deformation in the electronic properties of a tense membrane of graphene are considered within a non-perturbative appr…
Multi-flavor Dirac fermions in Kekulé-distorted graphene bilayers
David A. Ruiz-Tijerina, Elias Andrade, Ramon Carrillo-Bastos +2
Graphene's electronic structure can be fundamentally altered when a substrate- or adatom-induced Kekulé superlattice couples the valley and isospin degrees of freedom. Here, we sho…
Unconventional Thermal Magnon Hall Effect in a Ferromagnetic Topological Insulator
Christian Moulsdale, Pierre A. Pantaleón, Ramon Carrillo-Bastos +1
We present theoretically the thermal Hall effect of magnons in a ferromagnetic lattice with a Kekulé-O coupling (KOC) modulation and a Dzyaloshinskii-Moriya interaction (DMI). Thro…
Valley engineering by strain in Kekulé-distorted graphene
Elias Andrade, Ramon Carrillo-Bastos, Gerardo G. Naumis
A Kekulé bond texture in graphene modifies the electronic band structure by folding the Brillouin zone and bringing the two inequivalent Dirac points to the center. This can result…
Topological Magnon Insulator with a Kekule Bond Modulation
Pierre A. Pantaleon, Ramon Carrillo-Bastos, Y. Xian
We examine the combined effects of a Kekule coupling texture (KC) and a Dzyaloshinskii-Moriya interaction (DMI) in a two-dimensional ferromagnetic honeycomb lattice. By analyzing t…
Enhanced asymmetric valley scattering by scalar fields in non-uniform out-of-plane deformations in graphene
Ramon Carrillo-Bastos, Marysol Ochoa, Saúl A. Zavala +1
We study the electron scattering produced by local out-of-plane strain deformations in the form of Gaussian bumps in graphene. Of special interest is to take into account the scala…
Tuning the pseudospin polarization of graphene by a pseudo-magnetic field
Alexander Georgi, Peter Nemes-Incze, Ramon Carrillo-Bastos +16
One of the intriguing characteristics of honeycomb lattices is the appearance of a pseudo-magnetic field as a result of mechanical deformation. In the case of graphene, the Landau…