Electron Raman scattering in single and multilayered spherical quantum dots: Effects of hydrogenic impurity and geometrical size |
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Authors: | MJ Karimi G Rezaei H Pakarzadeh |
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Institution: | 1. Department of Physics, College of Sciences, Shiraz University of Technology, Shiraz 71555-313, Iran;2. Department of Physics, College of Sciences, Yasouj University, Yasouj 75914-353, Iran |
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Abstract: | Based on the effective mass and parabolic one-band approximations, the differential cross-section for the intersubband electron Raman scattering process in a single and multilayered spherical quantum dots is investigated. The influence of an on-center hydrogenic impurity and geometrical parameters such as the well and barrier widths on the differential cross-section is studied. Results show that the number, the position and the magnitude of the peaks of emission spectra, considerably depend on the presence of the hydrogenic impurity as well as geometrical parameters. Results also reveal that the magnitude of the peaks significantly depend on the polarization vectors of incident and scattered lights. |
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Keywords: | Electron Raman scattering Multilayered spherical quantum dots Hydrogenic impurity |
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