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Biexciton stability in carbon nanotubes

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 Added by David Kammerlander
 Publication date 2007
  fields Physics
and research's language is English




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We have applied the quantum Monte Carlo method and tight-binding modelling to calculate the binding energy of biexcitons in semiconductor carbon nanotubes for a wide range of diameters and chiralities. For typical nanotube diameters we find that biexciton binding energies are much larger than previously predicted from variational methods, which easily brings the biexciton binding energy above the room temperature threshold.



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