Optical Aharonov-Bohm effect in stacked type-II quantum dots

TL;DR

This paper reports the observation of the optical Aharonov-Bohm effect in stacked type-II quantum dots, demonstrating magnetic phase effects and oscillations in emission intensity through experimental measurements and numerical simulations.

Contribution

It provides experimental evidence of the optical Aharonov-Bohm effect in stacked quantum dots and validates numerical models with observed emission intensity oscillations.

Findings

Aharonov-Bohm oscillations observed in emission intensity

Good agreement between experimental peaks and simulations

Magnetic field influences exciton emission in stacked quantum dots

Abstract

Excitons in vertically stacked type-II quantum dots experience the topological magnetic phase and demonstrate the Aharonov-Bohm oscillations in the emission intensity. Photoluminescence of vertically stacked ZnTe/ZnSe quantum dots is measured in magnetic fields up to 31 T. The Aharonov-Bohm oscillations are found in the magnetic-field dependence of emission intensity. The positions of the peaks of the emission intensity are in a good agreement with numerical simulations of excitons in stacked quantum dots.