Sedlmaier, S. and Stopa, M. and Schedelbeck, G. and Wegscheider, Werner and Abstreiter, G. (2002) Band-gap renormalization of modulation-doped quantum wires. PHYSICAL REVIEW B, 65 (20): 201304. ISSN 1098-0121
Full text not available from this repository. (Request a copy)Abstract
We measure the photoluminescence spectra for an array of modulation doped, T-shaped quantum wires as a function of the one-dimensional density n(e), which is modulated with a surface gate. We present self-consistent electronic structure calculations for this device which show a band-gap renormalization which, when corrected for excitonic energy and its screening, are largely insensitive to n(e) and which are in quantitatively excellent agreement with the data. The calculations show that electron and hole remain bound up to similar to3x10(6) cm(-1) and that, therefore, the stability of the exciton far exceeds the conservative Mott criterion, as determined from the Bethe-Salpeter equation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTRON; EXCITONS; WELLS; BINDING; SYSTEMS; PLASMA; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Oct 2021 08:54 |
| Last Modified: | 26 Oct 2021 08:54 |
| URI: | https://pred.uni-regensburg.de/id/eprint/40258 |
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