Modulation of persistent current in graphene quantum rings
We investigate the effect of long-range impurity potentials on the persistent current of
graphene quantum rings in the presence of an uniform perpendicular magnetic field. The …
graphene quantum rings in the presence of an uniform perpendicular magnetic field. The …
Dirac fermions in graphene using the position-dependent translation operator formalism
Within the position-dependent translation operator formalism for quantum systems, we
obtain analytical expressions for the eigenstates and the Landau level spectrum of Dirac …
obtain analytical expressions for the eigenstates and the Landau level spectrum of Dirac …
Gap opening in graphene nanoribbons by application of simple shear strain and in-plane electric field
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 …
monolayer graphene nanoribbons (GNRs) are theoretically investigated. Band structures …
Valley filtering in graphene due to substrate-induced mass potential
The interaction of monolayer graphene with specific substrates may break its sublattice
symmetry and results in unidirectional chiral states with opposite group velocities in the …
symmetry and results in unidirectional chiral states with opposite group velocities in the …
Quantum information of a relativistic particle with position-dependent mass under the Aharonov–Casher effect
In this work, the influence of the Aharonov–Casher (AC) effect is investigated for a relativistic
particle with position-dependent mass through Shannon quantum information. Shannon's …
particle with position-dependent mass through Shannon quantum information. Shannon's …
Energy levels and Aharonov-Bohm oscillations in twisted bilayer graphene quantum dots and rings
We present a systematic study of the energy levels of twisted bilayer graphene (tBLG)
quantum dots (QD) and rings (QR) under an external perpendicular magnetic field. The …
quantum dots (QD) and rings (QR) under an external perpendicular magnetic field. The …
Energy spectrum of a Dirac particle with position-dependent mass under the influence of the Aharonov-Casher effect
RRS Oliveira, VFS Borges, MF Sousa - Brazilian Journal of Physics, 2019 - Springer
In this paper, we investigate the influence of the Aharonov-Casher (AC) effect on the
relativistic and nonrelativistic energy spectra of a neutral Dirac particle with position …
relativistic and nonrelativistic energy spectra of a neutral Dirac particle with position …
Magnetic field induced vortices in graphene quantum dots
The energy spectrum and local current patterns in graphene quantum dots (QD) are
investigated for different geometries in the presence of an external perpendicular magnetic …
investigated for different geometries in the presence of an external perpendicular magnetic …
Massive Dirac fermions in one-dimensional inhomogeneous nanorings
ES Azarova, GM Maksimova, VA Burdov - Physica E: Low-dimensional …, 2019 - Elsevier
Within the framework of a one-dimensional model, we calculate electronic spectra and
persistent currents of imperfect (containing one or several defects) nanoscale Aharonov …
persistent currents of imperfect (containing one or several defects) nanoscale Aharonov …
Theoretical proposals of graphene-based electronic devices
FRV Araújo - 2021 - repositorio.ufc.br
Graphene has been extensively investigated after its isolation in 2004 by AK Geim and KS
Novoselov. Due to its remarkable electronic and transport properties, it has become a …
Novoselov. Due to its remarkable electronic and transport properties, it has become a …