Electron-Electron Interaction in Carbon Nanostructures
Full article
Journal |
Los Alamos National Laboratory, Preprint Archive, Condensed Matter
|
Output data |
Year: 2006,
Article number
: 0608437,
Pages count
: 12
|
Tags |
Electron-electron interaction; Nanostructures; Electronic transport; Galvanomagnetic effects; Quantum localization |
Authors |
Romanenko A.I.
1,2
,
Anikeeva O.B.
1,2
,
Buryakov T.I.
1,2
,
Tkachev E.N.
1,2
,
Okotrub A.V.
1,2
,
Kuznetsov V.L.
3
,
Usoltseva A.N.
3
,
Kotosonov A.S.
4
|
Affiliations |
1 |
Nikolaev Institute of Inorganic Chemistry, Lavrentieva 3, Novosibirsk, 630090 Russia
|
2 |
Novosibirsk State University, Lavrentieva 14, Novosibirsk, 630090 Russia
|
3 |
Boreskov Catalysis, Lavrentieva 5, Novosibirsk, 630090 Russia
|
4 |
Institute of Carbon, Moscow, Russia
|
|
Funding (4)
1
|
Civilian Research and Development Foundation
|
NO-008-X1
|
2
|
The Ministry of Education and Science of the Russian Federation
|
2.1.1.1604
|
3
|
Russian Foundation for Basic Research
|
06-02-16005
|
4
|
Russian Foundation for Basic Research
|
05-03-32901
|
The electron-electron interaction in carbon nanostructures was studied. A new method which allows to determine the electron-electron interaction constant λc from the analysis of quantum correction to the magnetic susceptibility and the magnetoresistance was developed. Three types of carbon materials: arc-produced multiwalled carbon nanotubes (arc-MWNTs), CVD-produced catalytic multiwalled carbon nanotubes (c-MWNTs) and pyrolytic carbon were used for investigation. We found that λc=0.2 for arc-MWNTs (before and after bromination treatment); λc = 0.1 for pyrolytic graphite; λc> 0 for c-MWNTs. We conclude that the curvature of graphene layers in carbon nanostructures leads to the increase of the electron-electron interaction constant λc.