Kataura plot is a graph relating the energy of the
band gaps in a carbon nanotube and its diameter. A nanotube of certain diameter can be metallic M or semiconducting S; it can have several band gaps, conventionally labeled as S11, S22, M11, M22, etc. This property results in multiple branches in the Kataura plot. The original article on the Kataura plot has been reported in a lesser-known journal Synthetic Metals. Nevertheless, this article has been cited more than 1900 times in peer-reviewed scientific journals between 2000 and January 2020. ==References==