Collective modes of a superlattice - plasmons, LO phonon-plasmons, and magnetoplasmons

The wavevector-frequency dependent dielectric constant is investigated for a superlattice structure. Attention here is focused on the collective modes of the GaAs-GaAlAs superlattice with doped (or modulated doped) quantum wells. For wells widely separated in space, such that Bloch wave function ove...

Full description

Saved in:
Bibliographic Details
Published in:Solid state communications 1982-08, Vol.43 (7), p.523-528
Main Authors: Bloss, W.L., Brody, E.M.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The wavevector-frequency dependent dielectric constant is investigated for a superlattice structure. Attention here is focused on the collective modes of the GaAs-GaAlAs superlattice with doped (or modulated doped) quantum wells. For wells widely separated in space, such that Bloch wave function overlap between wells is negligible, a Bloch-like plasmon can propagate along the superlattice direction mediated entirely by Coulomb interaction alone. Interaction of these plasmons with optical phonons and with a magnetic field is investigated.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(82)90068-0