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Journal Article

Channeling of charge carrier plasmons in carbon nanotubes

MPS-Authors
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Rubio,  Angel
Nano-Bio Spectroscopy Group and ETSF Scientific Development Centre, Departamento de F´ısica de Materiales, Universidad del Pa´ıs Vasco, Centro de F´ısica de Materiales CSIC-UPV/EHU-MPC and DIPC;
Theory, Fritz Haber Institute, Max Planck Society;

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e085424.pdf
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Citation

Kramberger, C., Roth, F., Schuster, R., Kraus, R., Knupfer, M., Einarrson, E., et al. (2012). Channeling of charge carrier plasmons in carbon nanotubes. PHYSICAL REVIEW B, 85: 085424. doi:10.1103/PhysRevB.85.085424.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-76EA-3
Abstract
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.