SUPERCONDUCTIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a superconductive material which is produced by using a C60 compound having a C60 fullerene structure and has a superconductive transition temperature of 50K or more class. SOLUTION: This superconductive material has a C60 fullerene structure and comprises a compound represented by the general formula, (C60 )m Xn (X is an atom or a molecule; and (m) and (n) are each a composition). A conductive carrier assuming superconduction is a hole. X in the general formula has a high electron affinity, and the lattice constant of the C60 compound is larger compared with a solid C60 by the presence of X.