Exciton-phonon system in a polar semiconductor quantum well

Miao, Jingqi and Yang, Qian-Li and Gu, Shi-Wei (1989) Exciton-phonon system in a polar semiconductor quantum well. Physical Review B: Condensed Matter and Materials Physics, 40 (14). pp. 9846-9857. ISSN 0163-1829. (doi:https://doi.org/10.1103/PhysRevB.40.9846) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://www.dx.doi.org/10.1103/PhysRevB.40.9846

Abstract

An intermediate-coupling exciton-phonon system allowing for the image potential in a polar semiconductor quantum well is studied for the first time. A double-time unitary transformation to the Hamiltonian of the system is carried out and the motion of the exciton in the z direction is studied in detail. The variation of the induced potential with the width of the well, the ground-state, and the first–excited-state energies of the exciton in the well for different widths of the well are calculated. The method used in this paper is suitable to both weak-coupling and intermediate-coupling exciton-phonon systems and the results are more accurate than those of a single-time unitary transformation which is only suitable to a weak-coupling exciton-phonon system.

Item Type: Article
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Giles Tarver
Date Deposited: 05 Aug 2015 08:14 UTC
Last Modified: 06 Aug 2015 07:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50022 (The current URI for this page, for reference purposes)
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