Theory of electron energy spectrum and Aharonov-Bohm effect in self-assembled quantum rings in GaAs

VM Fomin, VN Gladilin, SN Klimin, JT Devreese… - Physical Review B …, 2007 - APS
We analyze theoretically the electron energy spectrum and the magnetization of an electron
in a strained In x Ga 1− x As∕ Ga As self-assembled quantum ring (SAQR) with realistic …

Effects of geometry on the electronic properties of semiconductor elliptical quantum rings

JA Vinasco, A Radu, E Kasapoglu, RL Restrepo… - Scientific Reports, 2018 - nature.com
The electronic states in GaAs-Al x Ga1− x As elliptically-shaped quantum rings are
theoretically investigated through the numerical solution of the effective mass band equation …

Structural and optical properties of In (Ga) As∕ GaAs quantum dots treated by partial cap** and annealing

L Wang, A Rastelli, OG Schmidt - Journal of Applied Physics, 2006 - pubs.aip.org
We tune the emission energy of self-assembled In As∕ Ga As (001) quantum dots (QDs) by
partial GaAs cap** and annealing. During the annealing step, the surface above the QDs …

Quasi-one-dimensional density of states in a single quantum ring

H Kim, W Lee, S Park, K Kyhm, K Je, RA Taylor… - Scientific reports, 2017 - nature.com
Generally confinement size is considered to determine the dimensionality of nanostructures.
While the exciton Bohr radius is used as a criterion to define either weak or strong …

Energy spectra and oscillatory magnetization of two-electron self-assembled quantum rings in GaAs

VM Fomin, VN Gladilin, JT Devreese, N Kleemans… - Physical Review B …, 2008 - APS
The effects of the Coulomb interaction on the energy spectrum and the magnetization of two
electrons in a strained In x Ga 1− x As/GaAs ringlike nanostructure are analyzed with …

Electron and exciton energy spectra in self‐assembled InGaAs/GaAs ring‐like nanostructures

VM Fomin, VN Gladilin, JT Devreese… - … status solidi (b), 2008 - Wiley Online Library
Theoretical analysis of the electron energy spectrum and the magnetization of an electron in
a strained Inx Ga1–x As/GaAs self‐assembled quantum ring (SAQR) is performed with …

Donor impurity states in a non-uniform quantum strip: geometrical and electro-magnetic field effects

YA Suaza, D Fonnegra-García, MR Fulla… - Superlattices and …, 2017 - Elsevier
The neutral donor energy structure in non-uniform height quantum strip under the presence
of crossed electric and magnetic fields is studied. The quantum strip height has been …

Three dimensional atom probe imaging of GaAsSb quantum rings

AM Beltrán, EA Marquis, AG Taboada, JM Ripalda… - Ultramicroscopy, 2011 - Elsevier
Unambiguous evidence of ring-shaped self-assembled GaSb nanostructures grown by
molecular beam epitaxy is presented on the basis of atom-probe tomography …

Electronic properties of superlattices on quantum rings

DR Da Costa, A Chaves, WP Ferreira… - Journal of Physics …, 2017 - iopscience.iop.org
We present a theoretical study of the one-electron states of a semiconductor-made quantum
ring (QR) containing a series of piecewise-constant wells and barriers distributed along the …

Formation mechanisms of agglomerations in high-density InAs/GaAs quantum dot multi-layer structures

N Ruiz-Marín, DF Reyes, V Braza, S Flores… - Applied Surface …, 2020 - Elsevier
The study explores phenomena that occur during the growth of multi-stacked quantum dots
(MQD) InAs layers using thin GaAs spacers. An arrangement of plastically relaxed …