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Wigner crystallization in transition metal dichalcogenides: A new approach to correlation energy
M. Zarenia, D. Neilson, B. Partoens +1
We introduce a new approach for the correlation energy of one- and two-valley two-dimensional electron gas (2DEG) systems. Our approach is based on a random phase approximation at…
Collapse of the low temperature insulating state in Cr-doped VO thin films
Pía Homm, Leander Dillemans, Mariela Menghini +10
We have grown epitaxial Cr-doped VO thin films with Cr concentrations between and on -AlO by oxygen-assisted molecular beam epitaxy. For the high…
An electric-field driven Mott metal-insulator transition in correlated thin films: an inhomogeneous dynamical mean-field theory approach
Petar Bakalov, Davoud Nasr Esfahani, Lucian Covaci +3
Simulations are carried out based on the dynamical mean-field theory (DMFT) in order to investigate the properties of correlated thin films for various values of the chemical poten…
Cyclotron resonance of a magnetic quantum dot
Nga T. T. Nguyen, F. M. Peeters
The energy spectrum of a one-electron quantum dot doped with a single magnetic ion is studied in the presence of an external magnetic field. The allowed cyclotron resonance (CR) tr…
Magnetic field dependence of the many-electron states in a magnetic quantum dot: The ferromagnetic-antiferromagnetic transition
Nga T. T. Nguyen, F. M. Peeters
The electron-electron correlations in a many-electron (Ne = 1, 2,..., 5) quantum dot confined by a parabolic potential is investigated in the presence of a single magnetic ion and…
Structure and correlations in two-dimensional Coulomb confined classical artificial atoms
W. P. Ferreira, A. Matulis, G. A. Farias +1
The ordering of N equally charged particles (-e) moving in two dimensions and confined by a Coulomb potential, resulting from a displaced positive charge Ze is discussed. This is a…
Transition Between Ground State and Metastable States in Classical 2D Atoms
Minghui Kong, B. Partoens, F. M. Peeters
Structural and static properties of a classical two-dimensional (2D) system consisting of a finite number of charged particles which are laterally confined by a parabolic potential…
Ground state of excitons and charged excitons in a quantum well
C. Riva, F. M. Peeters, K. Varga
A variational calculation of the ground state of a neutral exciton and of positively and negatively charged excitons (trions) in single quantum well is presented. We study the depe…
Interplay between tunneling and exchange effects in the two electron double quantum dot molecule
B. Partoens, A. Matulis, F. M. Peeters
The electronic structure of two vertically coupled quantum dots containing two electrons is investigated in the presence of interdot tunneling. Our approach also includes the inter…
Binding energy of localized biexcitons in quantum wells
C. Riva, K. Varga, F. M. Peeters
A variational calculation of the ground state energy of a biexciton in a GaAs/AlGaAs quantum well is presented. The well width fluctuations leading to trapping of the biexcitons ar…