Tunneling spectroscopy of disordered multiwalled carbon nanotubes

R. Tarkiainen, M. Ahlskog, M. Paalanen, A. Zyuzin, P. Hakonen

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

5 Sitaatiot (Scopus)
11 Lataukset (Pure)

Abstrakti

The tunneling density of states has been studied on disordered multiwalled carbon nanotubes. The tunneling conductance shows a large zero-bias anomaly, whose temperature and voltage dependence is successfully compared with the non-perturbative theory of electron tunneling into a disordered 1D electrode. The environmental Coulomb blockade is expected to set in at lower energies, where junctions can be considered to be zero-dimensional. In one of the samples, Coulomb blockade behavior is revealed over a wide range of temperatures. In this sample the tunneling is also studied using a superconducting counterelectrode, and the observed reduction of the conductivity is found to be in quantitative agreement with the theory.
AlkuperäiskieliEnglanti
Artikkeli125425
Sivut1-5
Sivumäärä5
JulkaisuPhysical Review B
Vuosikerta71
Numero12
DOI - pysyväislinkit
TilaJulkaistu - 2005
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Tutkimusalat

  • carbon nanotubes
  • tunneling conductance
  • tunneling spectroscopy

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