ANM
2010
3rd
International Conference on Advanced Nano Materials
12-15 September 2010 - Agadir, Morocco
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Abstract
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ANMM101 |
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TUNNELING EFFECTS ON THE BORDERS OF CARBON NANOTUBES |
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Belonenko Mikhail*, Lebedev Nikolay**, Yanyushkina Natalia** |
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* Volgograd Institute of Business, Laboratory of Nanotechnologies, Volgograd, Russia
**Volgograd State University, Volgograd, Russia |
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The
problem of tunneling draws attention of researches, apparently, from
the beginning occurrence of quantum mechanics. Many works associated
with carbon nanotubes using have appeared, including their applications
as a part of any devices which action is based on tunneling effect.
These devices besides carbon nanotubes, used as radiations source
include also devices based on the tunneling contact of nanotubes with
various type of conductivity. At the same time, it is worth noting,
that carbon nanotubes are substances with the periodical dispersion law
and, therefore, it is possible to expect the effects similar to effects
in strong fields for a superlattice case. One of such effects is a
falling part on the current-voltage characteristic (that case was
investigated for the carbon nanotubes). Another effect is absolute
negative conductivity. All these circumstances allow to assume that the
tunneling effects in the carbon nanotubes will give rise to the
features which associated with periodicity of the electron spectrum. It
is especially essential to the case of strong external fields.
The problem of tunneling of carbon nanotubes electrons in various
substances in the presence of strong external electric field was
considered, and the current-voltage characteristic for a weak external
field was obtained.
This work was supported by the Russian Foundation for Basic Research
under project No. 08-02-00663 and by the Federal Target Program
“Scientific and pedagogical manpower” for 2010-2013.
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