Conduction mechanism in boron carbide

Abstract

Electrical conductivity, Seebeck-coefficient, and Hall-effect measurements have been made on single-phase boron carbides, B1-xCx, in the compositional range 0.1x0.2 between room temperature and 1273 K. The results indicate that the predominant conduction mechanism is small-polaron hopping between carbon atoms at geometrically inequivalent sites. © 1984 The American Physical Society.