Fermi-edge singularities in the photoluminescence spectrum of modulation-doped GaAs v-groove quantum wires |
| |
| Authors: | J Kim A Maciel E D O'Sullivan J F Ryan A Schwarz A Kaluza H Hardtdegen Th Schpers H Lüth D Meertens Ch Dieker |
| |
| Institution: | J. Kim, A. Maciel, E. D. O'Sullivan, J. F. Ryan, A. Schwarz, A. Kaluza, H. Hardtdegen, Th. Schäpers, H. Lüth, D. Meertens,Ch. Dieker |
| |
| Abstract: | We report the observation of strong Fermi-edge singularities in the photoluminescence spectrum of strongly-confined, modulation-doped GaAs v-groove quantum wires. The behaviour of the singularity has been investigated at high excitation intensity, and both lattice and electrical heating. The latter produces a strong reduction of the singularity due to Fermi surface smearing, whereas, increased photoexcitation produces complex electron–hole correlation effects. |
| |
| Keywords: | Quantum wires Modulation doping Fermi-edge singularity Many-body effects |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
