The Meyer-Neldel rule in fullerenes
Journal
Applied Physics Letters
Journal Volume
73
Journal Issue
7
Pages
948-950
Date Issued
1998
Author(s)
Wang, J.C.
Abstract
We report that the thermally activated conductivity in several fullerene systems obeys the Meyer-Nelder (MN) rule, σ=σ00eΔE/kT0e -ΔE/kT. We found that the MN conductivity σ00 and the characteristic energy kT0 have a strong correlation, which is in good agreement with the prediction of the model proposed by Crandall [R. S. Crandall, Phys. Rev. B 43, 4057 (1991)] and Chen [Y. F. Chen and S. F. Huang, Phys. Rev. B 44, 13775 (1991)]. In this model, the origin of the MN rule is attributed to the exponential energy distribution of the defect traps. A similar correlation between σ00 and kT0 is also found in chalcogenide glasses. © 1998 American Institute of Physics.
SDGs
Type
journal article