MAGNETOOPTICAL SPECTROSCOPY OF POSITIVELY CHARGED EXCITONS IN GAAS QUANTUM-WELLS

Authors
SHIELDS AJ OSBORNE JL SIMMONS MY PEPPER M RITCHIE DA
Citation
Aj. Shields et al., MAGNETOOPTICAL SPECTROSCOPY OF POSITIVELY CHARGED EXCITONS IN GAAS QUANTUM-WELLS, Physical review. B, Condensed matter, 52(8), 1995, pp. 5523-5526
Citations number
17
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
8
Year of publication
1995
Pages
5523 - 5526
Database
ISI
SICI code
0163-1829(1995)52:8<5523:MSOPCE>2.0.ZU;2-R
Abstract
We report observation of positively charged excitons (X(+)) in GaAs qu antum wells remotely doped with accepters. Upon reducing the excess ho le density, by photoexciting carriers in the doped barrier layer, we o bserve the neutral excitonic transition strengthen relative to X(+). F urther confirmation of the X(+) assignment is provided by its temperat ure and magnetic-field dependence. We observe both the antisymmetric ( singlet) and symmetric (triplet) X(+) spin states.