Singly ionized double-donor complex in vertically coupled quantum dots

Abstract

The electronic states of a singly ionized on-axis double-donor complex (D2+) confined in two identical vertically coupled, axially symmetrical quantum dots in a threading magnetic field are calculated. The solutions of the Schrödinger equation are obtained by a variational separation of variables in the adiabatic limit. Numerical results are shown for bonding and antibonding lowest-lying artificial molecule states corresponding to different quantum dot morphologies, dimensions, separation between them, thicknesses of the wetting layers, and magnetic field strength.

Unveiling the Role of Donor Impurity Position on the Electronic Properties in Strained Type I and Type II Core/Shell Quantum Dots under Magnetic Field

“…2 ) [13,14]. In addition, the effects of exteriors perturbations such as magnetic, electric, and intense laser fields, pressure, and temperature on the electric and optical properties of the particles trapped on QD have been widely investigated in the literature [15][16][17][18][19][20][21][22][23][24][25].…”

Optical Absorption of a D2+ Artificial Molecule Confined in a Spherical Quantum Dot

“…They reported that the confinement of the D + 2 system in a QD provides additional possibilities to tune its properties such as the charge distribution of the lowest-lying states, the corresponding energy splittings, and the radiative lifetimes. The energies and eigenfunctions of a singly ionized D + 2 complex in vertically coupled QDs in the presence of a magnetic field were calculated by Manjarres-Garcia et al using a variational separation of variables for different structure morphologies [24]. Recently, Xu and colleagues performed a pump-probe experiment to investigate electron localization in the dissociation of the H + 2 molecule and breaking a chemical bond in real time [25].…”