Abstract
Quasi-zero-dimensional magnetic polarons in single quantum dots have been studied by photoluminescence spectroscopy. By comparing the experimental data with model calculations, the energy, the internal magnetic field, and the volume of the magnetic polarons are obtained. Moreover, the magnetic environment of the recombining electron hole pair causes a distinct broadening of the emission line of one diluted magnetic single quantum dot. The alignment of the Mn-spins in high magnetic fields results in a linewidth narrowing of almost one order of magnitude and the linewidth becomes comparable to that of a nonmagnetic reference sample.
- Received 19 May 2000
DOI:https://doi.org/10.1103/PhysRevB.62.R7767
©2000 American Physical Society