Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-09-06
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 1 table, 1 figure
Scientific paper
Rolling up of a layer with arbitrary lattice gives nanotube with very reach symmetry, described by a line group which is found for arbitrary diperiodic group of the layer and chiral vector. Helical axis and pure rotations are always present, while the mirror and glide planes appear only for specific chiral vectors in rhombic and rectangular lattices. Nanotubes are not translationally periodical unless layer cell satisfies very specific conditions. Physical consequences, including incommensurability of carbon nanotubes, are discussed.
Damnjanovic M.
Milosevic Ivanka
Nikolic Biljana
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