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Tunneling spectroscopy of disordered multiwalled carbon nanotubes
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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5
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Physical Review B, Volume 71, issue 12, pp. 1-5
Abstract
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.
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Tarkiainen, R, Ahlskog, M, Paalanen, M, Zyuzin, A & Hakonen, P 2005, 'Tunneling spectroscopy of disordered multiwalled carbon nanotubes', Physical Review B, vol. 71, no. 12, 125425, pp. 1-5. https://doi.org/10.1103/PhysRevB.71.125425