Local non-Fermi liquid theory of magnetic impurity effects in carbon nanotubes

Harigaya, Kikuo
June 2000
AIP Conference Proceedings;2000, Vol. 519 Issue 1, p563
Academic Journal
Magnetic impurity effects in carbon nanotubes are studied theoretically. The multi channel Kondo effect is investigated with the band structure of the metallic nanotubes. The local non-Fermi liquid behavior is realized at temperatures lower than the Kondo temperature T[sub K]. The density of states of localized electron has a singularity ∼|&omega|[sup ½] which gives rise to a pseudo gap at the Kondo resonance in low temperatures. The temperature dependence of the electronic resistivity is predicted as T[sup ½], and the imaginary part of dynamical susceptibilities has the |ω|[sup ½] dependence.


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