Suppression of tunneling into multiwall carbon nanotubes

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...

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Bibliographic Details
Published in:Physical review letters 2001-10, Vol.87 (16), p.166801-166801, Article 166801
Main Authors: Bachtold, A, de Jonge, M, Grove-Rasmussen, K, McEuen, P L, Buitelaar, M, Schönenberger, C
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.166801