Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 75, Issue 2, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.75.024703
Keywords
carbon nanotube; impurity scattering; weak localization; anti-localization; dynamical conductivity
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The weak-localization correction to the Boltzmann conductivity due to impurity scattering is calculated in metallic carbon nanotubes within the effective-mass approximation. The correction is positive for the impurity with interaction range larger than the lattice constant, while the impurity with shorter interaction length turns the correction into a negative value destroying the anti-localization. The crossover from anti-localization to weak localization is realized by controlling the coherence time.
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