期刊
THIN SOLID FILMS
卷 682, 期 -, 页码 10-17出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2019.04.049
关键词
Semi-parabolic quantum well; Magneto-optical properties; Hydrostatic pressure; Temperature effects; Aluminum content
类别
资金
- Ministry of Education and Training of Vietnam [B2019-DNA-07]
We theoretically study the combined effect of Al-concentration, hydrostatic pressure, and temperature on the magneto-optical absorption properties of a semi-parabolic quantum well (SPQW) by investigating the magneto-optical absorption coefficient (MOAC) and the full-width at half-maximum (FWHM). The expression of MOAC is expressed by the second-order golden rule approximation where the electron-longitudinal-optical (LO) phonon interaction is taken into account while the FWHM is obtained from the profile of the curves. The numerical calculations are made for a typical GaAs/GaAlAs quantum well. Our results showed that the Al-concentration, hydrostatic pressure, and temperature affect the magneto-optical absorption properties strongly. Threshold energy and the resonant peaks are non-monotonic functions of the Al-concentration. Moreover, it has been revealed that the magneto-optical absorption properties of SPQW can be controlled by changing these parameters.
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