Aharonov-Bohm Oscillations in Photoluminescence from Charged Exciton in Quantum Tubes
Kohei Tsumura, Shintaro Nomura, Pamela Mohan, Junichi Motohisa, and, Takashi Fukui
TL;DR
This paper reports the observation of Aharonov-Bohm oscillations in the photoluminescence of charged excitons within InAs quantum tubes, demonstrating quantum interference effects related to magnetic flux.
Contribution
It provides experimental evidence of Aharonov-Bohm oscillations in photoluminescence from charged excitons in quantum tubes, highlighting the quantum nature of these nanostructures.
Findings
Photoluminescence peak energies oscillate with magnetic flux.
No quadratic energy shift observed, indicating single-channel quantum behavior.
Oscillations are attributed to the Aharonov-Bohm effect of charged excitons.
Abstract
The oscillation of photoluminescence peak energies is observed in InAs quantum tubes depending on the magnetic flux through the tube. The oscillation is shown to be due to the Aharonov-Bohm effect of a charged exciton in a quantum tube. No quadratic shift in photoluminescence peak energies is observed, which is a characteristic feature of a thin quantum tube with a single channel surrounding the magnetic flux through the tube.
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