Multiband Electronic Structure of Magnetic Quantum Dots: Numerical Studies

D. Redertha, R. Oszwałdowskia, A.G. Petukhova, J.M. Pientkab aSouth Dakota School of Mines and Technology, Rapid City, USA bSt. Bonaventure University, New York, USA

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Semiconductor quantum dots (QDs) doped with magnetic impurities have been a focus of continuous research for a couple of decades. A significant effort has been devoted to studies of magnetic polarons (MP) in these nanostructures. These collective states arise through exchange interaction between a carrier confined in a QD and localized spins of the magnetic impurities (typically: Mn). Our theoretical description of various MP properties in self-assembled QDs is discussed. We present a self-consistent, temperature-dependent approach to MPs formed by a valence band hole. The Luttinger-Kohn k· p Hamiltonian is used to account for the important effects of spin-orbit interaction.

DOI: 10.12693/APhysPolA.133.343 PACS numbers: 73.21.La,73.22.-f,75.50.Pp