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Experimental evidence for the effect of nonequilibrium acoustic plasmons on carrier relaxation in bulk semiconductors

  • J. F. Lampin
  • , F. X. Camescasse
  • , A. Alexandrou
  • , M. Bonitz
  • , V. Thierry-Mieg
  • CNRS
  • Institut d'Electronique de Microélectronique et de Nanotechnologie (IEMN)
  • Universität Rostock

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

7 Citations (Scopus)

Résumé

We demonstrate experimentally the role of preexisting populations on the relaxation of nonequilibrium carriers in bulk semiconductors: A substantial acceleration is observed for cold preexcited carriers and a slowing down for hot equilibrium carriers. Experiments in doped samples show that holes are predominantly responsible for the acceleration of the thermalization. The observed acceleration (slowing down) is readily explained by favorable (unfavorable) conditions for the excitation of weakly damped nonequilibrium acoustic plasmons.

langue originaleAnglais
Pages (de - à)R8453-R8456
journalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Numéro de publication12
Les DOIs
étatPublié - 1 janv. 1999

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