Polarization-dependent spectral redshifts at nu=1 and nu=2 in a GaAs quantum well in high magnetic fields up to 60 T

Authors
Munteanu, FM Kim, Y Perry, CH Heiman, D Rickel, DG Sundaram, M Gossard, AC
Citation
Fm. Munteanu et al., Polarization-dependent spectral redshifts at nu=1 and nu=2 in a GaAs quantum well in high magnetic fields up to 60 T, PHYS REV B, 62(7), 2000, pp. 4249-4252
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
7
Year of publication
2000
Pages
4249 - 4252
Database
ISI
SICI code
0163-1829(20000815)62:7<4249:PSRANA>2.0.ZU;2-B
Abstract
Polarized magnetophotoluminescence measurements performed on a wide parabol ic GaAs/Al0.2Ga0.8As quantum well reveal the presence of spectral redshifts in the energy at filling factors v = 1 and 2. The magnitude of these redsh ifts depends on the polarization and filling factor. While the values for t he case of the a polarization agree with existing theories, the results for the sigma(+) polarizations are less understood.