Anomalous Conductance Quantization in Carbon Nanotubes

Details Anomalous Conductance Quantization in Carbon Nanotubes Anomalous Conductance Quantization in Carbon Nanotubes

2004-06-25

arxiv.org/abs/cond-mat/0406652v2

Phys. Rev. Lett. 94, 026801 (2005).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

related articles at http://marcuslab.harvard.edu

Scientific paper

10.1103/PhysRevLett.94.026801

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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