MOBILE EXCITONS AND FERMI-EDGE SINGULARITIES IN AN INTERACTING 2D ELECTRON-GAS

Authors
BRUM JA BROWN S HAWRYLAK P YOUNG JF WASILEWSKI Z
Citation
Ja. Brum et al., MOBILE EXCITONS AND FERMI-EDGE SINGULARITIES IN AN INTERACTING 2D ELECTRON-GAS, Surface science, 362(1-3), 1996, pp. 424-427
Citations number
5
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
362
Issue
1-3
Year of publication
1996
Pages
424 - 427
Database
ISI
SICI code
0039-6028(1996)362:1-3<424:MEAFSI>2.0.ZU;2-T
Abstract
We present theoretical and experimental results on the evolution of th e threshold absorption of a 2D electron gas as a function of electron density. We pay particular attention to the low density regime where t he spectrum evolves from an exciton to a Fermi edge singularity, The m any-body origin of the Moss-Burstein shift is emphasized.