Channeling of charge carrier plasmons in carbon nanotubes

Christian Kramberger; Friedrich Roth; Roman Schuster; Robert Kraus; Martin Knupfer; Erik Einarsson; Shigeo Maruyama; Duncan John Mowbray; Angel Rubio; Thomas Pichler

doi:10.1103/PhysRevB.85.085424

Channeling of charge carrier plasmons in carbon nanotubes

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

Electronic Properties of Materials

Publications: Contribution to journal › Article › Peer Reviewed

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.

Original language	English
Article number	085424
Number of pages	4
Journal	Physical Review B
Volume	85
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.85.085424
Publication status	Published - 2012

Austrian Fields of Science 2012

103015 Condensed matter
103018 Materials physics

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10.1103/PhysRevB.85.085424

Cite this

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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.",

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AU - Kramberger, Christian

AU - Roth, Friedrich

AU - Schuster, Roman

AU - Kraus, Robert

AU - Knupfer, Martin

AU - Einarsson, Erik

AU - Maruyama, Shigeo

AU - Mowbray, Duncan John

AU - Rubio, Angel

AU - Pichler, Thomas

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AB - 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.

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