List of records in nano database
IDs:
114
Authors : |
Márk,Géza,I.;Biró,László,P.;Gyulai,József;Thiry,Paul,A.;Lambin,Philippe |
Title : |
Computer simulation of scanning tunneling
spectroscopy of supported carbon nanotube
aggregates |
BookTitle : |
Electronic Properties of Novel Materials -- Molecular Nanostructures, 4-11 March 2000, Kirchberg, Austria |
Editors : |
Kuzmany,Hans;Fink,Jörg;Mehring,Michael;Roth,Siegmar |
PubDateYear : |
2000 |
PubDateOther : |
|
Volume : |
544 |
Series : |
AIP Conference Proceedings |
StartPage : |
303 |
EndPage : |
306 |
Publisher : |
American Institute of Physics |
Address : |
Melville, New York |
ISBN : |
1-56396-973-4 |
Keywords : |
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Notes : |
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Abstract : |
Among the various techniques to investigate
carbon nanotubes scanning tunneling microscopy
(STM) is one of the most promising since it gives
access to both the atomic and electronic
structures (STS). The interpretation of the
experimental data remains delicate, however.
We performed dynamical quantum-mechanical
calculations aimed at understanding what controls
the current-voltage characteristics in the STM
investigation of different arrangements
of nanotubes. The calculated STS spectra are
directly comparable to experimental data.
The theory allowed us to identify one component
of pure geometrical origin responsible for an
asymmetry of I-V curve, as often observed
experimentally above a carbon nanotube.
It is emphasized that this asymmetry strongly
depends on the shape of the tip, and this may
change during the experiment. |
HTML_Local : |
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HTML_Remote : |
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Preprint_Local : |
http://www.nanotechnology.hu/preprint/iwepnm2000.pdf |
Preprint_Remote : |
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