Suppression of Tunneling into Multiwall Carbon Nanotubes

A. Bachtold, M. de Jonge, K. Grove-Rasmussen, P. L. McEuen, M. Buitelaar, and C. Schönenberger
Phys. Rev. Lett. 87, 166801 – Published 1 October 2001
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Abstract

We have studied tunneling of electrons into multiwall carbon nanotubes (NTs) in NT-gold and NT-NT junctions, the latter created by atomic force microscope manipulation. The tunneling conductance goes to zero as the energy (temperature and bias) is reduced, and the functional form is consistent with a power law. The exponents depend upon sample geometry. The relationship between these results and theories for tunneling into ballistic and disordered metals is discussed.

  • Received 5 December 2000

DOI:https://doi.org/10.1103/PhysRevLett.87.166801

©2001 American Physical Society

Authors & Affiliations

A. Bachtold*, M. de Jonge, K. Grove-Rasmussen, and P. L. McEuen

  • Department of Physics, University of California at Berkeley, Berkeley, California 94720
  • and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

M. Buitelaar and C. Schönenberger

  • Institut für Physik, Universität Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland

  • *Present address: TUDelft, 2628CJ Delft, The Netherlands.

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Vol. 87, Iss. 16 — 15 October 2001

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