| dc.contributor.author | Sarkar, Niladri | |
| dc.date.accessioned | 2024-02-21T03:54:18Z | |
| dc.date.available | 2024-02-21T03:54:18Z | |
| dc.date.issued | 2005-06 | |
| dc.identifier.uri | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.233204 | |
| dc.identifier.uri | http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14387 | |
| dc.description.abstract | We present an experimental investigation of heavy doping-induced many-body effects such as band gap narrowing and Fermi-edge singularity (FES) in AlxGa1−xAs using photoluminescence (PL) spectroscopy. The band-to-band transition energy shifts to lower energies and the FES feature in PL spectra grows with increasing electron concentration. We show that the FES 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 feature in the PL spectra. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | APS | en_US |
| dc.subject | Physics | en_US |
| dc.subject | Fermi-edge singularity (FES) | en_US |
| dc.subject | Spectroscopy | en_US |
| dc.title | Photoluminescence spectroscopy of many-body effects in heavily doped AlxGa1−xAs | en_US |
| dc.type | Article | en_US |
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