Current splitting and valley polarization in elastically deformed graphene

T Stegmann, N Szpak - 2D Materials, 2018 - iopscience.iop.org
Elastic deformations of graphene can significantly change the flow paths and valley
polarization of the electric currents. We investigate these phenomena in graphene …

Magnetoelectrically controlled valley filter and valley valve in bilayer graphene

C Park - Physical Review Applied, 2019 - APS
We study the effects of inversion asymmetry and tunable band gap on the transmission of
particles in bilayer graphene junctions to propose a model for a valley-filter and valley-valve …

Valley notch filter in a graphene strain superlattice: Green's function and machine learning approach

V Torres, P Silva, EAT De Souza, LA Silva… - Physical Review B, 2019 - APS
The valley transport properties of a superlattice of out-of-plane Gaussian deformations are
calculated using a Green's function and a machine learning approach. Our results show that …

Unusual quantum confined Stark effect and Aharonov-Bohm oscillations in semiconductor quantum rings with anisotropic effective masses

GO De Sousa, DR Da Costa, A Chaves, GA Farias… - Physical Review B, 2017 - APS
The effects of external electric and magnetic fields on the energy spectrum of quantum rings
made out of a bidimensional semiconductor material with anisotropic band structures are …

Dirac fermions in graphene using the position-dependent translation operator formalism

V Aguiar, SM Cunha, DR da Costa, RNC Filho - Physical Review B, 2020 - APS
Within the position-dependent translation operator formalism for quantum systems, we
obtain analytical expressions for the eigenstates and the Landau level spectrum of Dirac …

Electronic transport and Klein tunneling in gapped AA-stacked bilayer graphene

HM Abdullah, M Al Ezzi, H Bahlouli - Journal of Applied Physics, 2018 - pubs.aip.org
We theoretically investigate the electronic transport and Klein tunneling in AA-stacked
bilayer graphene (AA-BLG) encapsulated by dielectric materials. Using the four-band …

Effects on the electronic properties of multilayer phosphorene due to periodic arrays of vacancies: Band unfolding formalism

FEB de Sousa, FRV Araújo, GA Farias… - Physica E: Low …, 2023 - Elsevier
We investigate the effects of atomic vacancies on the band structure of multilayer
phosphorene using a combination of the tight-binding model and the band unfolding …

Wave-packet dynamics in multilayer phosphorene

SM Cunha, DR Da Costa, GO De Sousa, A Chaves… - Physical Review B, 2019 - APS
We investigate the dynamics of Gaussian wave packets in multilayer black phosphorus (BP).
Time-dependent average position and velocity are calculated analytically and numerically …

Electron collimation at van der Waals domain walls in bilayer graphene

HM Abdullah, DR Da Costa, H Bahlouli, A Chaves… - Physical Review B, 2019 - APS
We show that a domain wall separating single-layer graphene and AA-stacked bilayer
graphene (AA-BLG) can be used to generate highly collimated electron beams which can be …

Gap opening in graphene nanoribbons by application of simple shear strain and in-plane electric field

NS Bandeira, DR Da Costa, A Chaves… - Journal of Physics …, 2020 - iopscience.iop.org
The effects of shear strain and applied in plane electric field on the electronic properties of
monolayer graphene nanoribbons (GNRs) are theoretically investigated. Band structures …