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Gapless interface states at the junction between two topological insulators
Christophe De Beule, Bart Partoens
We consider a junction between two topological insulators, and calculate the properties of the interface states with an effective low energy Hamiltonian for topological insulators…
Tuning of the spin-orbit interaction in a quantum dot by an in-plane magnetic field
M. P. Nowak, B. Szafran, F. M. Peeters +2
Using an exact diagonalization approach we show that one- and two-electron InAs quantum dots exhibit avoided crossing in the energy spectra that are induced by the spin-orbit coupl…
Electronic and magnetic properties of superlattices of graphene/graphane nanoribbons with different edge hydrogenation
A. D. Hernandez-Nieves, B. Partoens, F. M. Peeters
Zigzag graphene nanoribbons patterned on graphane are studied using spin-polarized ab initio calculations. We found that the electronic and magnetic properties of the graphene/grap…
Artificial molecular quantum rings under magnetic field influence
L. K. Castelano, G. -Q. Hai, B. Partoens +1
The ground states of few electrons confined in two vertically coupled quantum rings in the presence of an external magnetic field are studied systematically within the current spin…
Control of the persistent currents in two interacting quantum rings through the Coulomb interaction and inter-ring tunneling
L. K. Castelano, G. -Q. Hai, B. Partoens +1
The persistent current in two vertically coupled quantum rings containing few electrons is studied. We find that the Coulomb interaction between the rings in the absence of tunneli…
Excitons in coupled InAs/InP self-assembled quantum wires
Y. Sidor, B. Partoens, F. M. Peeters +7
Optical transitions in coupled InAs/InP self-assembled quantum wires are studied within the single-band effective mass approximation including effects due to strain. Both verticall…