Collective excitations in charged nanocrystals ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Collective excitations in charged nanocrystals and in close-packed arrays of charged nanocrystals
Auteur(s) :
Delerue, Christophe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Niquet, Yann-Michel [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Allan, Guy [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Niquet, Yann-Michel [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Titre de la revue :
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Pagination :
195316-1-6
Éditeur :
American Physical Society
Date de publication :
2005
ISSN :
1098-0121
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
We present self-consistent tight binding calculations of the dielectric response of charged semiconductor nanocrystals. We predict collective effects such as the oscillation in opposite phase of the additional electron and ...
Lire la suite >We present self-consistent tight binding calculations of the dielectric response of charged semiconductor nanocrystals. We predict collective effects such as the oscillation in opposite phase of the additional electron and of the plasma of valence electrons near the resonance. In arrays of charged nanocrystals, the coupling between infrared light and collective excitations is shown to be strong, the real part of the dielectric constant becoming negative in some part of the spectrum. Transverse and longitudinal excitation modes obeying the Lyddane-Sachs-Teller equation are predicted.Lire moins >
Lire la suite >We present self-consistent tight binding calculations of the dielectric response of charged semiconductor nanocrystals. We predict collective effects such as the oscillation in opposite phase of the additional electron and of the plasma of valence electrons near the resonance. In arrays of charged nanocrystals, the coupling between infrared light and collective excitations is shown to be strong, the real part of the dielectric constant becoming negative in some part of the spectrum. Transverse and longitudinal excitation modes obeying the Lyddane-Sachs-Teller equation are predicted.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :