title: Double-donor complex in vertically coupled quantum dots in a threading magnetic field.
abstract: We consider a model of hydrogen-like artificial molecule formed by two vertically coupled quantum dots in the shape of axially symmetrical thin layers with on-axis single donor impurity in each of them and with the magnetic field directed along the symmetry axis. We present numerical results for energies of some low-lying levels as functions of the magnetic field applied along the symmetry axis for different quantum dot heights, radii, and separations between them. The evolution of the Aharonov-Bohm oscillations of the energy levels with the increase of the separation between dots is analyzed.
authors.affiliation: Group of Investigation in Condensed Matter Theory, Universidad del Magdalena, Santa Marta, Colombia. jsierraortega@gmail.com.
authors.forename: Ramón
authors.initials: R
authors.lastname: Manjarres-García
authors.forename: Gene Elizabeth
authors.initials: GE
authors.lastname: Escorcia-Salas
authors.forename: Javier
authors.initials: J
authors.lastname: Manjarres-Torres
authors.forename: Ilia D
authors.initials: ID
authors.lastname: Mikhailov
authors.forename: José
authors.initials: J
authors.lastname: Sierra-Ortega