Magneto-optical properties of semi-parabolic plus semi-inverse squared quantum wells

We theoretically study the optical absorption in a quantum well with the semi-parabolic potential plus the semi-inverse squared potential (SPSIS) in the presence of a static magnetic field in which both one- and two-photon absorption processes have been taken into account. The expression of the magn...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2018-06, Vol.539, p.117-122
Main Authors: Tung, Luong V., Vinh, Pham T., Phuc, Huynh V.
Format: Article
Language:English
Subjects:
Absorptivity
Electron-phonon interaction
FWHM
Magnetic fields
Magnetic properties
Magneto-optical properties
Nonlinear optics
Optical properties
Optics
Optoelectronics
Photon absorption
Profile method (forecasting)
Quantum wells
Temperature dependence
Transport properties
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Summary:We theoretically study the optical absorption in a quantum well with the semi-parabolic potential plus the semi-inverse squared potential (SPSIS) in the presence of a static magnetic field in which both one- and two-photon absorption processes have been taken into account. The expression of the magneto-optical absorption coefficient (MOAC) is expressed by the second-order golden rule approximation including the electron–LO phonon interaction. We also use the profile method to obtain the full width at half maximum (FWHM) of the absorption peaks. Our numerical results show that either MOAC or FWHM strongly depends on the confinement frequency, temperature, and magnetic field but their dependence on the parameter β is very weak. The temperature dependence of FWHM is consistent with the previous theoretical and experimental works. •Linear and nonlinear optical properties of SPSISQW in the presence of magnetic field are studied.•MOAC and FWHM are strongly affected by confinement frequency, temperature, and magnetic field.•The dependence of MOAC and FWHM on parameter $\beta$ are very weak.•The dependence of FWHM on temperature is consistent with both theoretical and experimental results.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2018.04.015