Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes

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© 2007 American Physical Society (APS). This is the accepted version of the following article: Wu, F. & Queipo, P. & Nasibulin, A. & Tsuneta, T. & Wang, T. H. & Kauppinen, E. & Hakonen, Pertti J. 2007. Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes. Physical Review Letters. Volume 99, Issue 15. 156803/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.99.156803, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.99.156803.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2007

Major/Subject

Mcode

Degree programme

Language

en

Pages

156803/1-4

Series

Physical Review Letters, Volume 99, Issue 15

Abstract

We have measured shot noise in single-walled carbon nanotubes 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 the 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. Deviations from the predictions from Landauer-Buttiker formalism are assigned to electron-electron interactions.

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Keywords

CNTs, SWNRs, resonance

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Citation

Wu, F. & Queipo, P. & Nasibulin, A. & Tsuneta, T. & Wang, T. H. & Kauppinen, E. & Hakonen, Pertti J. 2007. Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes. Physical Review Letters. Volume 99, Issue 15. 156803/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.99.156803