2000 年 69 巻 2 号 p. 316-319
Magnetic impurity effects on metallic carbon nanotubes are studied theoretically. The resolvent method for the multichannel Kondo effect is applied to the band structure of the k · p perturbation hamiltonian. The local non-Fermi liquid behavior is realized at temperatures lower than the Kondo temperature TK. The density of states of the localized electron has a singularity -- |ω|1/2 which gives rise to a pseudo gap at the Kondo resonance in low temperatures. The temperature dependence of the electronic resistivity is predicted as T1/2, and the imaginary part of dynamical susceptibilities has the |ω|1/2 dependence. Possible experimental observations are discussed.
この記事は最新の被引用情報を取得できません。