Suppression of Tunneling into Multiwall Carbon Nanotubes
نویسندگان
چکیده
منابع مشابه
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 a power law. The exponents depend upon sample geometry. The relationship between these results an...
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Multiwall Carbon Nanotubes (MWCNTs) were synthesized by Chemical Vapor Deposition (CVD). Two different procedures were used to grow MWCNT films roughly, aligned in the direction normal to the SiO2/Si(111) substrate. Inverse Photoemission Spectroscopy measurements, on these samples, show the existence of resonances which could be traced back to a flat graphene sheet. The unoccupied valence band ...
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S. Bellucci, J. González, and P. Onorato INFN, Laboratori Nazionali di Frascati, P.O. Box 13, 00044 Frascati, Italy Instituto de Estructura de la Materia, Consejo Superior de Investigaciones Cientı́ficas, Serrano 123, 28006 Madrid, Spain Dipartimento di Scienze Fisiche, Università degli Studi di Napoli ‘‘Federico II,’’ Via Cintia, I-80126 Napoli, Italy ~Received 14 May 2003; revised manuscript r...
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We have measured the differential conductance of individual multiwall carbon nanotubes. Coulomb blockade and energy level quantization are observed. The electron levels are nearly fourfold degenerate (including spin) and their evolution in magnetic field (Zeeman splitting) agrees with a g factor of 2. In zero magnetic field the sequential filling of states evolves with spin S according to S = 0...
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During the past 20 years, multiwall carbon nanotubes (MWCNTs) have become an important industrial material. Hundreds of tons are produced each year. This review is a survey of the scientific literature, motivated by industrial requirements and guidelines for environment, health and safety compliance. Sampling, size, area, density, color, crystallinity, as well as purity compared to properties o...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2001
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.87.166801