Abstract
Photoluminescence spectroscopy with high spatial resolution has been applied to study single CdSe quantum dots embedded in a semimagnetic ZnMnSe matrix. The exchange interaction between the exciton and Mn2+ ions of the crystal matrix results in the formation of a ferromagnetically aligned spin complex, a quasi-0D excitonic magnetic polaron. We demonstrate, that the energy shift of the EMP with temperature and excitation power, respectively, directly reflects the change of the magnetization, in particular the spin temperature, on a nanometer scale.
Original language | English |
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Pages (from-to) | 512-515 |
Number of pages | 4 |
Journal | Physica E: Low-Dimensional Systems and Nanostructures |
Volume | 13 |
Issue number | 2-4 |
DOIs | |
Publication status | Published - 2002 Mar |
Externally published | Yes |
Keywords
- Diluted magnetic semiconductors
- Excitonic magnetic polaron
- Nanomagnetism
- Quantum dots
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics