Introducing a twist in carbon nanotubes

摘要

A simple model based on rotational distortion of carbon atoms between adjacent layers running perpendicular to the tube axis, without altering the hexagonal motifs is proposed for constructing coiled carbon nanotubes. CARBON is a fascinating element.It exists in different allotropic forms that give rise to its versatile behaviour. In the amorphous form it is powdery in nature and black in colour. It becomes the hardest substance known and has a shining appearance in the allotropic form of diamond.