Bulk and boundary zero-bias anomaly in multi-wall carbon nanotubes

Details Bulk and boundary zero-bias anomaly in multi-wall carbon nanotubes Bulk and boundary zero-bias anomaly in multi-wall carbon nanotubes

2001-01-16

arxiv.org/abs/cond-mat/0101246v2

Phys. Rev. Lett. 87, 066401 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, to appear in PRL (revised version)

Scientific paper

10.1103/PhysRevLett.87.066401

We compute the tunneling density of states of doped multi-wall nanotubes including disorder and electron-electron interactions. A non-conventional Coulomb blockade reflecting nonperturbative Altshuler-Aronov-Lee power-law zero-bias anomalies is found, in accordance with recent experimental results. The presence of a boundary implies a universal doubling of the boundary exponent in the diffusive limit.

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