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Channeling of charge carrier plasmons in carbon nanotubes

Autor(en)
Christian Kramberger, Friedrich Roth, Roman Schuster, Robert Kraus, Martin Knupfer, Erik Einarsson, Shigeo Maruyama, Duncan John Mowbray, Angel Rubio, Thomas Pichler
Abstrakt

Ab initio calculations of the loss function of potassium-intercalated and electron-loaded bundles of single-walled carbon nanotubes yield a channeled-charge-carrier plasmon without perpendicular dispersion. Experimentally, we probe the momentum-dependent loss function of thin bundles consisting of only a few potassium-intercalated single-walled carbon nanotubes by angle-resolved electron-energy-loss spectroscopy and confirm this intrinsic channeling. The charge-carrier-plasmon energy is via in situ intercalation and is tunable in the near-visible infrared-energy range from 0.85 to 1.15 eV.

Organisation(en)
Elektronische Materialeigenschaften
Externe Organisation(en)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden, University of Tokyo, University of the Basque Country
Journal
Physical Review B
Band
85
Anzahl der Seiten
4
ISSN
1098-0121
DOI
https://doi.org/10.1103/PhysRevB.85.085424
Publikationsdatum
2012
Peer-reviewed
Ja
ÖFOS 2012
103015 Kondensierte Materie, 103018 Materialphysik
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/03ac9742-5c84-4a81-8fdc-d7d51ea26432