Vibrations of a chain of Xe atoms in a groove in a carbon nanotube bundle

MT Cvitaš, A Šiber - Physical Review B, 2003 - APS
Physical Review B, 2003APS
We present a lattice-dynamics study of the vibrations of a linear chain of Xe adsorbates in
groove positions in a bundle of carbon nanotubes. The characteristic phonon frequencies
are calculated and the adsorbate polarization vectors are discussed. A comparison of the
present results with the ones previously published shows that the adsorbate vibrations
cannot be treated as completely decoupled from the vibrations of carbon nanotubes, and
that a significant hybridization between the adsorbate and the tube modes occurs for …
Abstract
We present a lattice-dynamics study of the vibrations of a linear chain of Xe adsorbates in groove positions in a bundle of carbon nanotubes. The characteristic phonon frequencies are calculated and the adsorbate polarization vectors are discussed. A comparison of the present results with the ones previously published shows that the adsorbate vibrations cannot be treated as completely decoupled from the vibrations of carbon nanotubes, and that a significant hybridization between the adsorbate and the tube modes occurs for phonons of large wavelengths.
American Physical Society
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