Photoluminescence Spectroscopy of many-body Effects in Heavily Doped Al$_x$Ga$_{1-x}$As
| dc.creator | Ghosh, Subhasis | |
| dc.creator | Sarkar, Niladri | |
| dc.date | 2004-06-22 | |
| dc.date.accessioned | 2026-07-07T02:58:45Z | |
| dc.date.available | 2026-07-07T02:58:45Z | |
| dc.description | We present an experimental investigation of heavy doping-induced many-body effects such as band gap narrowing(BGN) and Fermi edge singularity(FES) in Al$_x$Ga$_{1-x}$As using photoluminescence(PL) spectroscopy. The band-to-band transition energy shifts to lower energies and FES-like feature in PL spectra grows with increasing electron concentration. We show that FES-like feature is a nonmonotonic function of temperature and excitation intensity. Our data lead us to suggest that a small concentration of nonequilibrated holes is required to enhance the FES-like feature in the PL spectra. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0406507 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0406507 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/24235 | |
| dc.subject | Materials Science | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Photoluminescence Spectroscopy of many-body Effects in Heavily Doped Al$_x$Ga$_{1-x}$As | |
| dc.type | text |