Nearly degenerate time-resolved Faraday rotation in an interacting exciton system

Yumin Shen, A. M. Goebel, G. Khitrova, H. M. Gibbs, Hailin Wang

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We report experimental studies of nearly degenerate time-resolved Faraday rotation (TRFR) of electron spin precession in an interacting exciton system. We show that many-body interactions between excitons strongly modify the TRFR response through the coupling of the spin coherence to two-exciton states. The striking difference between TRFR and transient differential absorption (DA) further reveals that exciton-exciton interactions play crucial but qualitatively different roles in TRFR and DA.

Original languageEnglish (US)
Article number233307
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number23
StatePublished - Dec 15 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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