Absorption Spectra of Hydrogen-Like Donor Impurity in GaAs Quantum Well with Modified Pöschl-Teller Potential
- Authors: Sargsian T.A.1
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Affiliations:
- Russian-Armenian University
- Issue: Vol 54, No 2 (2019)
- Pages: 168-174
- Section: Article
- URL: https://journals.rcsi.science/1068-3372/article/view/228861
- DOI: https://doi.org/10.3103/S1068337219020087
- ID: 228861
Cite item
Abstract
Hydrogen-like donor impurity states in a quantum well with modified Pöschl-Teller confinement potential have been considered. The dependence of binding energy on hydrogen-like donor impurity position and confinement potential parameters has been revealed. It has been shown that the dependence of binding energy on hydrogen-like donor impurity position has the bell-shaped character. The existence of binding energy maximum is explained by the concurrency of the size-quantization effect and the Coulomb interaction between electron and hydrogen-like donor impurity. The coefficient of an optical absorption in the presence of hydrogen-like donor impurity center has been computed. The absorption spectra for the quantum transitions between the hydrogen-like donor impurity ground state and conduction band ground state have been obtained.
About the authors
T. A. Sargsian
Russian-Armenian University
Author for correspondence.
Email: sargtigran97@gmail.com
Armenia, Yerevan