Exciton storage in a nano-scale Aharonov-Bohm ring with electric field tuning

Details Exciton storage in a nano-scale Aharonov-Bohm ring with electric field tuning Exciton storage in a nano-scale Aharonov-Bohm ring with electric field tuning

2008-09-23

arxiv.org/abs/0809.3863v1

Phys. Rev. Lett. 102, 096405 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.102.096405

We study analytically the optical properties of a simple model for an
electron-hole pair on a ring subjected to perpendicular magnetic flux and
in-plane electric field. We show how to tune this excitonic system from
optically active to optically dark as a function of these external fields. Our
results offer a simple mechanism for exciton storage and read-out.

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