Current enhancement with alternating gate voltage in the Coulomb-blockade regime of a single-wall carbon nanotube

  • H. Y. Yu
  • , D. S. Lee
  • , S. S. Kim
  • , B. Kim
  • , S. W. Lee
  • , J. G. Park
  • , S. H. Lee
  • , G. C. Mcintosh
  • , Y. W. Park
  • , M. S. Kabir
  • , E. E.B. Campbell
  • , S. Roth

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We investigated the current-voltage characteristics of a carbon nanotube in a single electron transistor structure with alternating gate voltage. A continuous current enhancement effect with increasing frequency of the applied gate voltage up to 13 MHz is reported. Assuming that I = ne f, more than 1000 electrons are driven to flow across the source-drain channel at VDS = 100 mV, 13 MHz of gate voltage (Vp-p = 2 V) and T = 1.8 K. The continuous current enhancement is explained by the broadening effect of the discrete energy levels of the finite-length carbon nanotube.

Original languageEnglish
Pages (from-to)1613-1615
Number of pages3
JournalApplied Physics A: Materials Science and Processing
Volume79
Issue number7
DOIs
StatePublished - Nov 2004

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