ELECTRICAL-CONDUCTIVITY OF NOVEL FORMS OF CARBON

The wide variety of novel forms of carbon provides a large spectrum of types and ranges of conductivities. This concerns either the pristine materials, or results from controlled modification of pristine materi als through intercalation or doping, or is associated with the low dim ensionality of the systems. The present paper contains a brief survey, based on a global comparative microscopic approach, of the electrical resistivity and the physics of conduction related to various forms of carbon, whether pristine or deliberately modified forms. Peculiar qua ntum aspects of conduction for particular situations encountered in so me forms of carbon with respect to other types of solids, are also inv estigated.