Anomalous conductance quantization in carbon nanotubes

M. J. Biercuk, N. Mason, J. Martin, A. Yacoby, C. M. Marcus

Research output: Contribution to journalArticle

Abstract

Conductance measurements of carbon nanotubes containing gated local depletion regions exhibit plateaus as a function of gate voltage, spaced by approximately 1e2/h, the quantum of conductance for a single (nondegenerate) 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.

Original languageEnglish (US)
Article number026801
JournalPhysical review letters
Volume94
Issue number2
DOIs
StatePublished - Jan 21 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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