Picosecond dynamics of bleaching and spin splitting in InP revealed by the photoinduced magneto-optical Kerr effect near the spin-orbit split-off exciton transition

AV Kimel*, AA Tsvetkov, A Kirilyuk, T Rasing, VN Gridnev

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

A time-resolved study of the photoinduced magneto-optical response of InP in the spectral range nearby the spin-orbit split-off exciton transition shows both bleaching of the split-off exciton transition and splitting of the exciton spin sublevels. The bleaching relaxes with a decay of 10 ps due to energy redistribution of the photoexcited carriers. The splitting of the spin sublevels shows a two-exponential decay with characteristic times of 20 ps and 200 ps, respectively. These times are related to the relaxation of the spin polarization of the electrons in the conduction band.

Original languageEnglish
Article number165214
Number of pages5
JournalPhysical Review. B: Condensed Matter and Materials Physics
Volume69
Issue number16
DOIs
Publication statusPublished - Apr-2004
Externally publishedYes

Keywords

  • GAAS QUANTUM-WELLS
  • GALLIUM-ARSENIDE
  • SEMICONDUCTORS
  • COHERENCE

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