Exciton-exciton interaction and heterobiexcitons in GaN

S. Adachi, S. Muto, K. Hazu, T. Sota, K. Suzuki, S. F. Chichibu, T. Mukai

研究成果: Article査読

23 被引用数 (Scopus)


The formation of not only A biexcitons (XXAA) but also heterobiexcitons that consist of A and B excitons (XXAB) in a free-standing bulk GaN is identified by polarization-sensitive spectrally resolved FWM measurements. The FWM spectra and delay-time dependence show that the interaction between A and B exciton gives rise to the energy shifts of the spectra and the phase shifts of the quantum beating, which is considered as the effect of the unbound state of XXAB (i.e., (Formula presented)) and (Formula presented) is found to play an important role in the FWM signals for all polarizations. The unbound A biexciton (Formula presented) is also observed clearly in spectral and temporal domains.

ジャーナルPhysical Review B - Condensed Matter and Materials Physics
出版ステータスPublished - 2003 5月 28

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学


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