Anomalous Conductance Quantization in Carbon Nanotubes

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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References in corpus (3)

• Evidence of spontaneous spin polarized transport in magnetic nanowires
• Conductance of a quantum wire in the Wigner crystal regime
• Lateral scaling in carbon nanotube field-effect transistors

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