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arXiv · 1109.1104

Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes

F. Romeo·R. Citro·A. Di Bartolomeo
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Abstract

We present a theoretical model accounting for the anomalous Fabry-Perot pattern observed in the ballistic conductance of a single-wall carbon nanotubes. Using the scattering field theory, it is shown that the presence of a limited number of impurities along the nanotube can be identified by a measurement of the conductance and their position determined. Impurities can be made active or silent depending on the interaction with the substrate via the back-gate. The conceptual steps for designing a bio-molecules detector are briefly discussed.

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F. Romeo, R. Citro, A. Di Bartolomeo. 2011-09-06. Impurity effects on Fabry-Perot physics of ballistic carbon nanotubes. https://doi.org/10.1103/physrevb.84.153408

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