Garcia, Jorge M. and Granados, Daniel and Hayne, Manus and Jantsch, W and Moshchalkov, Victor V. and Schaffler, F and Taboada, Alfonso G. (2007) Observation of PL intensity modulation in self-assembled Quantum Rings (QR) under strong pulsed magnetic fields. In: Physics of Semiconductors, Pts A and B. American Institute of Physics, pp. 947-948. ISBN 9780735403970
Full text not available from this repository.Abstract
We present photoluminescence (PL) measurements of self-assembled In(Ga)As QRs in strong pulsed magnetic fields. The results show a striking modulation of the intensity. This modulation of the emission can be attributed to an effect predicted by Govorov et al.: a mechanism for the topological phase of a neutral particle, a polarized exciton confined to a semiconductor quantum ring. The magnetic-field induced phase strongly affects the excitons in the QR, resulting in switching between bright exciton ground states and novel dark states.