The Meyer-Neldel rule in fullerenes

被引：66

作者：

Wang, JC ^{[1
]}

Chen, YF ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 07期

关键词：

D O I：

10.1063/1.122048

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report that the thermally activated conductivity in several fullerene systems obeys the Meyer-Nelder (MN) rule, sigma=sigma(00)e(Delta E/kT0)e(.)(-Delta E/kT) We found that the MN conductivity sigma(00) and the characteristic energy kT(0) 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, 13 775 (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 sigma(00) and kT(0) is also found in chalcogenide glasses. (C) 1998 American Institute of Physics.

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页码：948 / 950

页数：3

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