Carbon nanotube electronic displacement encoder with sub-nanometer resolution

Hanqing Jiang, M. F. Yu, J. Q. Lu, Y. Huang, H. T. Johnson, X. G. Zhang, P. Ferreira

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Electric conductance of a telescope double-walled carbon nanotube oscillates as a function of telescoping distance. The period of such oscillation is one half of the lattice constant of graphene, a/2 = 0.123 nm, instead of the lattice constant a as expected. The halving of the period results from the combination of the periodic interlayer lattice alignment and the occurrence of antiresonance. When combined with the periodicity in the energy space at a fixed displacement, the telescopic displacement can be reliably and accurately determined to the sub-nanometer resolution. This effect can be used to design an electronic displacement encoder.

Original languageEnglish (US)
Pages (from-to)574-577
Number of pages4
JournalJournal of Computational and Theoretical Nanoscience
Volume4
Issue number3
DOIs
StatePublished - May 2007

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Carbon Nanotubes
coders
Encoder
Nanotubes
Lattice constants
Carbon nanotubes
Carbon
Electric conductance
carbon nanotubes
Electronics
Graphite
electronics
Telescopes
Graphene
Conductance
Periodicity
Telescope
periodic variations
interlayers
graphene

Keywords

  • Carbon nanotube encoder
  • Interlayer tunneling
  • Nanometrology

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Computational Theory and Mathematics

Cite this

Carbon nanotube electronic displacement encoder with sub-nanometer resolution. / Jiang, Hanqing; Yu, M. F.; Lu, J. Q.; Huang, Y.; Johnson, H. T.; Zhang, X. G.; Ferreira, P.

In: Journal of Computational and Theoretical Nanoscience, Vol. 4, No. 3, 05.2007, p. 574-577.

Research output: Contribution to journalArticle

Jiang, Hanqing ; Yu, M. F. ; Lu, J. Q. ; Huang, Y. ; Johnson, H. T. ; Zhang, X. G. ; Ferreira, P. / Carbon nanotube electronic displacement encoder with sub-nanometer resolution. In: Journal of Computational and Theoretical Nanoscience. 2007 ; Vol. 4, No. 3. pp. 574-577.
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