Carbon Nanotube Electronic Displacement Encoder with Sub-Nanometer Resolution
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.
Document Type: Research Article
Publication date: May 1, 2007
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- Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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