Nonequilibrium tunneling spectroscopy in carbon nanotubes

Yung Fu Chen, Travis Dirks, Gassem Al-Zoubi, Norman O. Birge, Nadya Mason

Research output: Contribution to journalArticle

Abstract

We report measurements of the nonequilibrium electron energy distribution in carbon nanotubes. Using tunneling spectroscopy via a superconducting probe, we study the shape of the local electron distribution functions, and hence energy relaxation rates, in nanotubes that have bias voltages applied between their ends. At low temperatures, electrons interact weakly in nanotubes of a few microns channel length, independent of end-to-end-conductance values. Surprisingly, the energy relaxation rate can increase substantially when the temperature is raised to only 1.5 K.

Original languageEnglish (US)
Article number036804
JournalPhysical review letters
Volume102
Issue number3
DOIs
StatePublished - Jan 20 2009

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nanotubes
carbon nanotubes
electron distribution
spectroscopy
energy distribution
distribution functions
electron energy
energy
probes
electric potential
electrons
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Nonequilibrium tunneling spectroscopy in carbon nanotubes. / Chen, Yung Fu; Dirks, Travis; Al-Zoubi, Gassem; Birge, Norman O.; Mason, Nadya.

In: Physical review letters, Vol. 102, No. 3, 036804, 20.01.2009.

Research output: Contribution to journalArticle

Chen, Yung Fu ; Dirks, Travis ; Al-Zoubi, Gassem ; Birge, Norman O. ; Mason, Nadya. / Nonequilibrium tunneling spectroscopy in carbon nanotubes. In: Physical review letters. 2009 ; Vol. 102, No. 3.
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