Theory of exciton fine structures and extremely slow spin relaxation in single quantum dots

Authors
Takagahara, T
Citation
T. Takagahara, Theory of exciton fine structures and extremely slow spin relaxation in single quantum dots, J LUMINESC, 87-9, 2000, pp. 308-311
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LUMINESCENCE
ISSN journal
00222313 → ACNP
Volume
87-9
Year of publication
2000
Pages
308 - 311
Database
ISI
SICI code
0022-2313(200005)87-9:<308:TOEFSA>2.0.ZU;2-0
Abstract
A comprehensive theory is proposed to describe the polarization-dependent f ine splitting of exciton doublet lines and the relation between the polariz ation direction and the energy level order of doublet states in anisotropic quantum dots. The extremely slow spin relaxation within exciton doublet st ates is predicted. At the same time, it is found that the cross-relaxation between orthogonally polarized exciton states is significant. (C) 2000 Else vier Science B.V. All rights reserved.