Radial oscillations of local density of states in carbon nanotubes

Article

关键词: ELECTRONIC-STRUCTURE;    SINGLE;   

DOI  :  10.1103/PhysRevB.63.245111

来源: SCIE

【 摘 要 】

By performing an analytical study of the electronic structure of metallic carbon nanotubes, we show that the local density of states exhibits well-defined oscillations as a function of the nanotube radius. The periods of such oscillations are obtained from size quantization effects derived from folding up finite graphene sheets into tubular structures. A clear analogy with the de Haas-van Alphen effect in metals is established to explain the origin and features of such oscillations. Results of energy change calculations for impurity-doped carbon nanotubes also show the same type of oscillations.

【 授权许可】

Free