Polaron Effect on the Binding Energy of Shallow Donor in Cylindrical Quantum Dot |
| R. Charrour, M. Bouhassoune, D. Bria, A. Nougaoui Laboratoire de Dynamique et d'Optique des Matériaux, Faculté des Sciences, Université Mohamed 1er, Oujda, Morocco and M. Fliyou Equipe de Physique du Solide, ENS, B.P. 5206, Benssouda, Fès, Morocco |
| Received: June 14, 1999; revised version October 26, 1999 |
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| In the framework of the effective-mass approximation and the modified Lee-Low-Pines variational method, we present a theoretical study of the effect of the confined longitudinal-optical phonon and two types of surface-optical phonon (top and side mode) on the binding energy of shallow donor in cylindrical quantum dot. The effect of quantum confinement is described by an infinitely deep potential well. The impact of these different phonon modes is important and depends on the dimension of the quantum dot. |
| DOI: 10.12693/APhysPolA.96.759 PACS numbers: 71.38.+i, 73.20.Dx, 73.20.Hb |