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Excitons in ZnO/Zn 1– x Mn x O quantum wells
Author(s) -
Tchelidze T.,
Chikoidze E.,
Kereselidze T.,
Dumont Y.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200675116
Subject(s) - exciton , quantum well , condensed matter physics , coulomb , electric field , ground state , ferromagnetism , biexciton , binding energy , field (mathematics) , electron , chemistry , physics , materials science , atomic physics , quantum mechanics , laser , mathematics , pure mathematics
In order to estimate the perspectives of using ZnO/Zn 1– x Mn x O quantum wells for reliable high temperature ferromagnetism (specially for increasing Curie temperature in this structure) we investigate excitons in ZnO/Zn 1– x Mn x O quantum wells. The existence of weak built‐in electric field is investigated. Electric field and Coulomb interaction is accounted by means of direct diagonalization. Calculations showed weak dependence of exciton binding energy on well width. Electric field only slightly increases the distance between electron and hole. It rotates ground state excitons and aligns them along the field. Calculations also showed increase of ground state exciton lifetime with increasing well width. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)