MAGNETIC FIELD EFFECT ON OSCILLATOR STRENGTHS OF INTERBAND QUANTUM TRANSITIONS IN SPHERICAL QUANTUM DOT-QUANTUM WELL
Journal Title: Сенсорна електроніка і мікросистемні технології - Year 2016, Vol 13, Issue 4
Abstract
In the frame of effective masses and finite rectangular potential barriers there are calculated the energy spectra and densities of the electron and the hole in the semiconductor spherical quantum dotquantum well (QDQW) in magnetic field. The investigations are performed using the method of quasiparticles wave functions (WFs) expansion on the basis of WFs in the QDQW without the magnetic field. The effect of magnetic field on the energy spectra and the densities of electron and hole is studied for the nanosystem CdSe/ZnS/CdSe/ZnS. The dependences of quasi-particles energy spectra on the magnetic field induction are obtained. It is shown that under the influence of magnetic field the quasiparticles in the ground state can tunnel through potential barrier from the outer potential well into the inner one. For the electron and hole that phenomenon takes place at different values of the induction of magnetic field which in turn depicts on the oscillator strengths of the interband quantum transitions. The dependences of the oscillator strengths of interband quantum transition between the ground states of the electron and the hole in the QDQWs with different sizes of the inner potential well on magnetic field induction are calculated. Different character of obtained dependences are caused by various localization of the quasi-particles in the nanosystem layers.
Authors and Affiliations
V. A. Holovatsky, I. B. Bernik, M. Y. Yakhnevych
Keywords
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- EP ID EP397128
- DOI 10.18524/1815-7459.2016.4.86643
- Views 85
- Downloads 0
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