Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes

F. Wu; P. Queipo; A. Nasibulin; T. Tsuneta; T.H. Wang; E. Kauppinen; P. J. Hakonen

doi:10.1103/PhysRevLett.99.156803

Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes

F. Wu
, P. Queipo
, A. Nasibulin
, T. Tsuneta
, T.H. Wang
, E. Kauppinen
, P. J. Hakonen

Chinese Academy of Sciences

Research output: Contribution to journal › Article › Scientific › peer-review

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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.

Original language	English
Article number	156803
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review Letters
Volume	99
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.99.156803
Publication status	Published - 2007
MoE publication type	A1 Journal article-refereed

Keywords

CNTs

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10.1103/PhysRevLett.99.156803

PhysRevLett.99.156803Final published version, 2.09 MB

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title = "Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes",

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.",

keywords = "CNTs, CNTs, CNTs",

author = "F. Wu and P. Queipo and A. Nasibulin and T. Tsuneta and T.H. Wang and E. Kauppinen and Hakonen, \{P. J.\}",

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AU - Wu, F.

AU - Queipo, P.

AU - Nasibulin, A.

AU - Tsuneta, T.

AU - Wang, T.H.

AU - Kauppinen, E.

AU - Hakonen, P. J.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

KW - CNTs

UR - http://www.fyslab.hut.fi/nanomat/PDF%20publications/PRL%202007.pdf

U2 - 10.1103/PhysRevLett.99.156803

DO - 10.1103/PhysRevLett.99.156803

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EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 156803

ER -

Shot Noise with Interaction Effects in Single-Walled Carbon Nanotubes

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