Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7939922 | Superlattices and Microstructures | 2017 | 17 Pages |
Abstract
The ground state of a conduction electron coupled to an off-center impurity donor in a AlAS/GaAs spherical core/shell quantum dot is investigated theoretically. The image-charge effect and the influence of the electron-polar-LO-phonon interaction are considered. The electron-impurity binding energy is calculated via a variational procedure and is reported both as a function of the shell width and of the radial position of the donor atom. The polaronic effects on this quantity are particularly discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
M. El Haouari, E. Feddi, F. Dujardin, R.L. Restrepo, M.E. Mora-Ramos, C.A. Duque,