Exciton transport in Cu2O: Nonequilibrium phonons instead of bose condensation

G. A. Kopelevich, N. A. Gippius, S. G. Tikhodeev

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18 Citations (Scopus)


We demonstrate that the long-range transport of excitons in Cu2O, reported in [E. Fortin, et al., Phys. Rev. Lett. 70, 3951 (1993)], as well as its nonlinearity in case the of two-pulse excitation [A. Mysyrowicz, et al., Solid State Commun. 92, 957 (1994)], can be attributed to the nonequilibrium phonon induced drag and cannot be considered as an experimental proof of Bose-Einstein condensation and superfluidity of excitons in Cu2O.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalSolid State Communications
Issue number2
Publication statusPublished - Jul 1996
Externally publishedYes


  • A. semiconductors
  • D. electron-phonon interactions
  • D. electronic transport


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