Abstract
The growth evolution and the magneto-optical characteristics of the self-assembled single-layer ZnTe/ZnMnSe quantum dots grown by molecular beam epitaxy were investigated. As the ZnTe coverage is above 2.0 monolayers, a Stranski-Krastanov growth process is observed with a significantly increased dot density on top of two-dimensional plateaus. As the coverage exceeds 2.7 monolayers, ripened dots dominate instead. Furthermore, a saturated degree of circular polarization of 76% at applied magnetic field of 4 T and the formation of magnetic polarons with a formation time of 7.4 ns were demonstrated.
Original language | English |
---|---|
Pages (from-to) | 222-225 |
Number of pages | 4 |
Journal | Journal of Crystal Growth |
Volume | 378 |
DOIs | |
State | Published - 1 Jan 2013 |
Keywords
- Magneto-optic materials
- Molecular beam epitaxy
- Nanostructures
- Zinc compounds