Journal of Physical Studies 26(1), Article 1702 [10 pages] (2022)
DOI: https://doi.org/10.30970/jps.26.1702 ELECTRON–HOLE EXCHANGE INTERACTION IN A SPHERICAL QUANTUM DOT WITH REGARD MATERIAL DEFORMATION AND POLARIZATION CHARGESR. Ya. Leshko1 , I. V. Bilynskyi{1,2} , O. V. Leshko1
1Physics Department, Drohobych Ivan Franko State Pedagogical University,
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The focus of the study is on the strained spherical quantum dot (QD) InAs/GaAs heterosystem. A singleband model of the conductive band for electrons and a multiband model of the valence band for holes have been applied. Both models take into account the deformation of the QD and matrix and polarization charges on the boundaries. The proposed models have been used for the calculation of the electron-hole exchange interaction.
Key words: exchange interaction, deformation, multiband model, polarization charges, strained heterosystem.