Locally addressable tunnel barriers within a carbon nantucket

M. J. Biercuk, N. Mason, J. M. Chow, C. M. Marcus

Research output: Contribution to journalArticlepeer-review


We report the realization and characterization of independently controllable, fabricated tunnel barriers within a carbon nanotube. The nanotubes are mechanically bent or kinked using an atomic force microscope, and top gates are subsequently placed near each kink. Transport measurements indicate that the kinks form gate-controlled tunnel barriers and that gates placed away from the kinks have little or no effect on conductance. The overall conductance of the nanotube can be controlled by tuning the transmissions through the kinks.

Original languageEnglish (US)
Pages (from-to)2499-2502
Number of pages4
JournalNano letters
Issue number12
StatePublished - Dec 2004
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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