Fig. 1

Fig. 1

Fig. 1. a) Sinlge-walled carbon nanotubes of different charalities: semiconducting zig-zag (10,0) and chiral (8,4) tubes, metallic armchair (6,6) tube. b) A schematic presentation of construction of a zig-zag (10, 0) CNT by rolling a cylinder joining hexagons (0,0) and (10,0). Also, the possibility of creating arm-chair (6, 6) and chiral (8,4) tubes are shown.