Shot Noise with Interaction Effects in Single Walled Carbon Nanotubes

Details Shot Noise with Interaction Effects in Single Walled Carbon Nanotubes Shot Noise with Interaction Effects in Single Walled Carbon Nanotubes

2007-02-14

arxiv.org/abs/cond-mat/0702332v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.99.156803

We have measured shot noise in single walled carbon nanotubes (SWNT) with good contacts at 4.2 K at low frequencies ($f=600 - 850$ MHz). We find a strong modulation of shot noise over the Fabry-Perot pattern; in terms of differential Fano factor the variation ranges over 0.4 - 1.2. The shot noise variation, in combination with differential conductance, is analyzed using two (spin-degenerate) modes with different, energy-dependent transmission coefficients. No power law dependence of shot noise, as expected for Luttinger liquids, was found in our measurements.

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