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

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

2003-04-03

arxiv.org/abs/cond-mat/0304092v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Revised version, 10 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.92.126402

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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