An Abnormal Temperature Dependence of Conductivity in Fullerene Solids

作者:Sun Yong*; Onwona Agyeman Boateng; Miyasato Tatsuro
来源:Japanese Journal of Applied Physics, 2010, 49(8): 085103.
DOI:10.1143/JJAP.49.085103

摘要

An abnormal temperature dependence of conductivity has been observed in some fullerene solids, C-60, C-70, and C60H36 within the temperature range 400-500 K The temperature dependent conductivity measurements of these fullerene solids with various molecular diameters and moments of inertia indicate that the abnormal conductivity involves a molecular rotation effect in the fullerene solids Conductivity measurements of the C-60 solid samples prepared using various pressures indicate that the abnormal conductivity is also related to a variation of the energy band structure We are proposing a model to explain this abnormal conductivity observed as that, a reversible annealing effect results in the releasing or trapping of holes

  • 出版日期2010-8