Polaron-induced deformations in carbon nanotubes studied using the bicontinuum model

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 11, 2009, Pages

  Nisoli, Cristiano ^a  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 70350596029     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.113406     Document Type: Article

References (23)

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19. The expression for Vel is simplified in the long polaron approximation. Using the notation of Ref., we can neglect terms in i qj (the dispersion in the optical branches) as long as (μ- μ′) / a2, (λ- λ′) / a2 α, where a is the length of the polaron. Since (μ- μ′), (λ- λ′) are the order of the square of the speed(s) of sound in graphene or about 108 m2 s-2, whereas α can be expressed in terms of the graphitelike optical frequency α= ωΓ2 /4∼ 1028 s-2 and we have for the length of the polaron a∼10 nm, those ratios are thus of the order of 10-4.
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