Record number :
Title of article :
Electronic band dispersion of vertically aligned multiwall-carbon nanotubes
Author/Authors :
Choi، نويسنده , , Jaewu and Mi Lee، نويسنده , , Seung and Chul Choi، نويسنده , , Young and Hee Lee، نويسنده , , Young and Jiang، نويسنده , , J.C.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Pages :
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Abstract :
We have investigated electronic band structure of the vertically aligned multiwall-carbon nanotubes using angle-resolved ultraviolet photoemission spectroscopy and density functional calculations. There exists a finite density of states at the Fermi level, a large one-dimensional subband dispersion, highly degenerate states, and a small momentum periodicity (with a lattice constant of 6.3 إ) in the band dispersion. This strongly suggests that the observed nanotubes are mostly metallic with a chirality of (4k,k), where k is an integer, as predicted from the density functional calculations, although the chirality of the multiwalled nanotubes are likely to be mixed.
Journal title :
Chemical Physics Letters
Journal title :
Chemical Physics Letters
Serial Year :
Link To Document :