Simultaneous effects of Rashba, magnetic field and impurity on the magnetization and magnetic susceptibility of a GaAs-semiconductor quantum ring

AA Ali, A Shaer, M Elsaid - Journal of Magnetism and Magnetic Materials, 2022 - Elsevier
The magnetization and magnetic susceptibility of GaAs/AlGaAs quantum ring (QR) with the
presence of Rashba spin-orbit interaction and acceptor Gaussian impurity have been …

Bloch oscillations probed quantum phases in HgTe quantum wells

A Yar - Journal of Applied Physics, 2023 - pubs.aip.org
The semiconductor quantum well based on mercury telluride is characterized by two distinct
phases: conventional insulating phase and topological insulating phase with helical edge …

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 …

Ab initio and semiempirical modeling of excitons and trions in monolayer

E Torun, H Sahin, A Chaves, L Wirtz, FM Peeters - Physical Review B, 2018 - APS
We explore the electronic and the optical properties of monolayer TiS 3, which shows in-
plane anisotropy and is composed of a chain-like structure along one of the lattice …

Concentration, thermodynamic density of states, and entropy of electrons in semiconductor nanowires

G Gulyamov, AB Davlatov, KN Juraev - Low Temperature Physics, 2022 - pubs.aip.org
Approximate equations for the concentration of charge carriers, the thermodynamic density
of states, and the entropy of electrons in semiconductor nanowires are obtained. To find the …

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 …

Strong photovoltaic effect in high-density InAlAs and InAs/InAlAs quantum-dot infrared photodetectors

MS Claro, DG Stroppa, ECF da Silva… - Sensors and Actuators A …, 2020 - Elsevier
We report on a high responsivity at zero bias in infrared photodetectors based on InAlAs
quantum dots due to the formation of an Al-rich wetting layer which acts as an electron …

The split-operator technique for the study of spinorial wavepacket dynamics

A Chaves, GA Farias, FM Peeters… - … in computational physics, 2015 - cambridge.org
The split-operator technique for wave packet propagation in quantum systems is expanded
here to the case of propagatingwave functions describing Schrödinger particles, namely …

Electronic and transport properties of anisotropic semiconductor quantum wires

SM Cunha, DR da Costa, LC Felix, A Chaves… - Physical Review B, 2020 - APS
Within the effective-mass approximation, we theoretically investigated the electronic and
transport properties of 2D semiconductor quantum wires (QWs) with anisotropic effective …