List of records in nano database
IDs:
118
Authors : |
Márk,Géza,I.;Biró,László,P.;Koós,Antal;Osváth,Zoltán;Gyulai,József;Benito,Ana,M.;Thiry,Paul,A.;Lambin,Philippe |
Title : |
Charge spreading effects during 3D tunneling
through a supported carbon nanotube |
BookTitle : |
Electronic Properties of Novel Materials -- Molecular Nanostructures, 3-10 March 2001, Kirchberg, Austria |
Editors : |
Kuzmany,Hans;Fink,Jörg;Mehring,Michael;Roth,Siegmar |
PubDateYear : |
2001 |
PubDateOther : |
|
Volume : |
591 |
Series : |
AIP Conference Proceedings |
StartPage : |
364 |
EndPage : |
367 |
Publisher : |
American Institute of Physics |
Address : |
Melville, New York |
ISBN : |
|
Keywords : |
|
Notes : |
|
Abstract : |
Investigating the distribution of the scanning
tunneling microscope (STM) current through a
nanostructured material is a subject of great
current interest. In this work, the transmission
of an electron wave packet was calculated through
a jellium potential model of a carbon nanotube
under the tip of a STM. Snapshots of the full
three-dimensional (3D) probability density of
the wave packet enabled us to study in detail
the tunneling event. The theory shows that the
wave packet spreads along the nanotube while it
tunnels through it and the nanotube-support
tunneling channel is also extended along the
direction of the tube as compared to the
tip-nanotube channel which remains narrow.
We demonstrate how can this spread explain the
characteristics of the apparent height measured
by STM of a nanotube crossing a step on graphite. |
HTML_Local : |
http://www.nanotechnology.hu/online/kirchberg2001/ |
HTML_Remote : |
|
Preprint_Local : |
http://www.nanotechnology.hu/preprint/iwepnm2001.pdf |
Preprint_Remote : |
|
Warning: all transactions are logged!