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Aharonov-Bohm signature for neutral excitons in type-II quantum dot ensembles

E. Ribeiro·G. Medeiros-Ribeiro·W. Carvalho Jr.·A. O. Govorov
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Abstract

It is commonly believed that the Aharonov-Bohm (AB) effect is a typical feature of the motion of a charged particle interacting with the electromagnetic vector potential. Here we present a magnetophotoluminescence study of type-II InP/GaAs self-assembled quantum dots, unambiguously revealing the Aharonov-Bohm-type oscillations for neutral excitons when the hole ground state changes its angular momentum from lh = 0 to lh = 1, 2, and 3. The hole ring parameters derived from a simple model are in excellent agreement with the structural parameters for this system.

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E. Ribeiro, G. Medeiros-Ribeiro, W. Carvalho Jr., A. O. Govorov. 2003-12-17. Aharonov-Bohm signature for neutral excitons in type-II quantum dot ensembles. https://doi.org/10.1103/physrevlett.92.126402

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