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Anomalous Conductance Quantization in Carbon Nanotubes

M. J. Biercuk·N. Mason·J. Martin·A. Yacoby·C. M. Marcus
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Abstract

Conductance measurements of carbon nanotubes containing gated local depletion regions exhibit plateaus as a function of gate voltage, spaced by approximately e2/h, the quantum of conductance for a single (non-degenerate) mode. Plateau structure is investigated as a function of bias voltage, temperature, and magnetic field. We speculate on the origin of this surprising quantization, which appears to lack band and spin degeneracy.

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M. J. Biercuk, N. Mason, J. Martin, A. Yacoby, C. M. Marcus. 2004-09-11. Anomalous Conductance Quantization in Carbon Nanotubes. https://doi.org/10.1103/physrevlett.94.026801

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