Energy Anomaly and Polarizability of Carbon Nanotubes

Details Energy Anomaly and Polarizability of Carbon Nanotubes Energy Anomaly and Polarizability of Carbon Nanotubes

2005-12-04

arxiv.org/abs/cond-mat/0512069v1

Phys. Rev. Lett. 96, 036402 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pgs

Scientific paper

10.1103/PhysRevLett.96.036402

The energy of electron Fermi sea perturbed by external potential, represented as energy anomaly which accounts for the contribution of the deep-lying states, is analyzed for massive d = 1+1 Dirac fermions on a circle. The anomaly is a universal function of the applied field, and is related to known field-theoretic anomalies. We express transverse polarizability of Carbon nanotubes via the anomaly, in a way which exhibits the universality and scale-invariance of the response dominated by pi-electrons and qualitatively different from that of dielectric and conducting shells. Electron band transformation in a strong-field effect regime is predicted.

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