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

R. Egger·A. O. Gogolin
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Abstract

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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R. Egger, A. O. Gogolin. 2001-06-09. Bulk and boundary zero-bias anomaly in multi-wall carbon nanotubes. https://doi.org/10.1103/physrevlett.87.066401

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