Plasma dynamics in graphite and SWNT probed by inelastic electron and X-ray scattering

Autor(en)

Christian Kramberger, Erik Einarsson, Simo Huotari, Theerapol Thurakitseree, Shigeo Maruyama, Martin Knupfer, Thomas Pichler

Abstrakt

Graphite as well as bundled and freestanding single-walled carbon nanotubes (SWNTs) are allotropes of sp2 carbon. However their dynamical structure factor S (q, w) differs greatly because of the very different dimensionalities and geometries. Here S (q, w) is experimentally accessed by means of inelastic X-ray and electron scattering.

In our combined approach we utilize the equivalency and complementarity of the two techniques to access the dispersion relation of electronic inter-band transitions across the entire Brillouin zone. The extended range plasmon dispersions provide direct insight into the imprints of macroscopic screening and low-dimensional confinement on plasmons in SWNTs

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

University of Tokyo, European Synchrotron Radiation Facility ESRF, Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden

Journal

Physica Status Solidi C-Current Topics in Solid State Physics

Band

7

Seiten

2789-2792

Anzahl der Seiten

4

ISSN

1862-6351

DOI

https://doi.org/10.1002/pssc.201000290

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a25c2c11-2e22-4598-9c7d-7bfc6bbf74f4