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Fermi-edge singularities in the photoluminescence spectrum of modulation-doped GaAs v-groove quantum wires

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. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
Journal:
PHYSICA E-LOW-DIMENSIONAL SYSTEMS and NANOSTRUCTURES More from this journal
Volume:
7
Issue:
3-4
Pages:
517-520
Publication date:
2000-05-01
Event title:
9th International Conference on Modulated Semiconductor Structures (MSS9)
DOI:
ISSN:
1386-9477
Keywords:
Pubs id:
pubs:14277
UUID:
uuid:675e37d4-aac3-4506-997c-e47adec87a06
Local pid:
pubs:14277
Source identifiers:
14277
Deposit date:
2012-12-19

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