Comparative study of plasma excitations in single-walled carbon nanotubes and graphite by inelastic x-ray and electron scattering

نویسندگان

  • C. Kramberger
  • E. Einarsson
  • S. Huotari
  • T. Thurakitseree
  • S. Maruyama
  • M. Knupfer
  • T. Pichler
چکیده

The dynamical structure factor S(q, ω) in both graphite and freestanding thin-bundled singlewalled carbon nanotubes (SWNTs) is probed by means of inelastic x-ray and electron scattering. We utilize the equivalency and complementarity of the two techniques in our combined approach. The plasmon dispersions provide direct insight into the imprints of macroscopic screening and low-dimensional confinement on excitonic inter-band transitions in SWNTs. PACS numbers: 73.22.Lp

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تاریخ انتشار 2010