Properties of graphene: a theoretical perspective

DSL Abergel, V Apalkov, J Berashevich… - Advances in …, 2010 - Taylor & Francis
The electronic properties of graphene, a two-dimensional crystal of carbon atoms, are
exceptionally novel. For instance, the low-energy quasiparticles in graphene behave as …

Electronic properties of mesoscopic graphene structures: Charge confinement and control of spin and charge transport

AV Rozhkov, G Giavaras, YP Bliokh, V Freilikher, F Nori - Physics Reports, 2011 - Elsevier
This brief review discusses electronic properties of mesoscopic graphene-based structures.
These allow controlling the confinement and transport of charge and spin; thus, they are of …

Energy levels of triangular and hexagonal graphene quantum dots: a comparative study between the tight-binding and Dirac equation approach

M Zarenia, A Chaves, GA Farias, FM Peeters - Physical Review B …, 2011 - APS
The Dirac equation is solved for triangular and hexagonal graphene quantum dots for
different boundary conditions in the presence of a perpendicular magnetic field. We analyze …

Geometry and edge effects on the energy levels of graphene quantum rings: A comparison between tight-binding and simplified Dirac models

DR Da Costa, A Chaves, M Zarenia, JM Pereira Jr… - Physical Review B, 2014 - APS
We present a systematic study of the energy spectra of graphene quantum rings having
different geometries and edge types in the presence of a perpendicular magnetic field …

Inner and outer edge states in graphene rings: A numerical investigation

DA Bahamon, ALC Pereira, PA Schulz - Physical Review B—Condensed …, 2009 - APS
We numerically investigate quantum rings in graphene and find that their electronic
properties may be strongly influenced by the geometry, the edge symmetries, and the …

The Aharonov–Bohm effect in graphene rings

J Schelter, P Recher, B Trauzettel - Solid state communications, 2012 - Elsevier
This is a review of electronic quantum interference in mesoscopic ring structures based on
graphene, with a focus on the interplay between the Aharonov–Bohm effect and the peculiar …

Effect of magnetic field on the electronic properties of an ring

M Islam, T Biswas, S Basu - Physical Review B, 2023 - APS
We consider a quantum ring of a certain radius R built from a sheet of the α-T 3 lattice and
solve for its spectral properties in the presence of an external magnetic field. The energy …

Effective tuning of isotropic and anisotropic properties of quantum dots and rings by external fields

MG Barseghyan, A Manaselyan, AA Kirakosyan… - Physica E: Low …, 2020 - Elsevier
The combined effects of intense THz laser field, magnetic field and in-plane electric field on
electronic states and intraband optical properties of single isotropic quantum dots and rings …

Controllable continuous evolution of electronic states in a single quantum ring

T Chakraborty, A Manaselyan, M Barseghyan… - Physical Review B, 2018 - APS
An intense terahertz laser field is shown to have a profound effect on the electronic and
optical properties of quantum rings where the isotropic and anisotropic quantum rings can …

Electrostatically confined quantum rings in bilayer graphene

M Zarenia, JM Pereira Jr, FM Peeters, GA Farias - Nano Letters, 2009 - ACS Publications
We propose a new system where electron and hole states are electrostatically confined into
a quantum ring in bilayer graphene. These structures can be created by tuning the gap of …