Optical detection of the Aharonov-Bohm effect on a charged particle in a nanoscale quantum ring.
We study spectroscopically the current produced by a charged particle moving in a nanosize semiconductor quantum ring subject to a perpendicular magnetic field. Several Aharonov-Bohm oscillations are observed in the emission of a charged exciton confined in a single ring structure. The magnetic field period of the oscillations correlates well with the size of the rings.
Bayer
M
M
Experimentelle Physik II, Universität Dortmund, D-44221 Dortmund, Germany.
Korkusinski
M
M
Hawrylak
P
P
Gutbrod
T
T
Michel
M
M
Forchel
A
A