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- Title
Valence Band Structure of Coupled Diluted Magnetic Quantum Dots.
- Authors
Massa, L. O.; Qu, Fanyao; Villegas-Lelovsky, L.; Spada, R. F. K.
- Abstract
The valence band structure of double InAs/GaAs diluted magnetic vertical quantum dots has been studied in the frame of multiband k⋅ p calculation. We find that due to anisotropic effective mass, the ground state can be tuned from the characteristic of heavy- to light-hole state through just changing the parameter of quantum coupling between two QDs. We also show how this crossover manifests itself in the p– d exchange interaction between hole and Mn spins.
- Subjects
QUANTUM dots; VALENCE (Chemistry); DILUTED magnetic semiconductors; POLARONS; ANISOTROPY; EFFECTIVE mass (Physics); MEAN field theory
- Publication
Journal of Superconductivity & Novel Magnetism, 2010, Vol 23, Issue 1, p121
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-009-0575-5