Simultaneous effects of anisotropy and internuclear distance on the [formula omitted] complex-related self-polarization in quantum dots.

In this study, we investigate the simultaneous effects of anisotropy and internuclear distance on the self-polarization of the D 2 + complex in quantum dots for different confinement sizes. Numerical calculations were carried out within the effective mass approach using the two-dimensional diagonalization method. The obtained results reveal that a change in the internuclear distance and anisotropy parameter regulates the effective confinement potential of the system. The variation in effective confinement potential plays an important role in the spatial elongation of the wave function, which determines the observed behavior of the self-polarization effect (S P E). The magnitude of the S P E in the prolate case has been found to be greater than that of the oblate case. The obtained results reveal that the S P E of the D 2 + complex can be arranged in quantum dots as desired by adjusting the internuclear distance and anisotropy of the system. • A singly ionized double donor complex (D 2 +) confined in a quantum dot. • We have demonstrated the existence of the tunability of the self-polarization effect of the D 2 + complex by adjusting the internuclear distance and the anisotropy of the quantum dot. • The magnitude of the self-polarization effect in the prolate case has been found to be greater than that of the oblate case. • The obtained results reveal that the self-polarization effect of the D 2 + complex can be arranged in quantum dots by adjusting the internuclear distance and anisotropy of the system. [ABSTRACT FROM AUTHOR]