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2011 | 120 | 5 | 888-890
Article title

Excitonic Magnetoabsorption of Cylindrical Quantum Disks

Content
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Languages of publication
EN
Abstracts
EN
We show how to compute the optical functions (the complex magnetosusceptibility, dielectric function, magnetoreflection) for semiconductor quantum disks exposed to a uniform magnetic field in the growth direction, including the excitonic effects. The method uses the microscopic calculation of nanostructure excitonic wave functions and energy levels, and the macroscopic real density matrix approach to compute the electromagnetic fields and susceptibilities. The electron-hole screened Coulomb potential is adapted and the valence band structure is taken into account in the cylindrical approximation, thus separating light- and heavy-hole motions. The confinement potentials are taken as step-like both in the z and in-plane directions. Numerical calculations have been performed for In_{0.55}Al_{0.45}As (disk)/Al_{0.35}Ga_{0.65}As (barrier) and InP/GaP disks and the results are in a good agreement with the available experimental data.
Keywords
Year
Volume
120
Issue
5
Pages
888-890
Physical description
Dates
published
2011-11
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv120n518kz
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