An Abnormal Temperature Dependence of Conductivity in Fullerene Solids
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概要
- 論文の詳細を見る
An abnormal temperature dependence of conductivity has been observed in some fullerene solids, C60, C70, 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 C60 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 in the deep energy levels induced by lattice defects. The contribution of these holes leads to the abnormal variation in the conductivity with temperature.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2010-08-25
著者
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Sun Yong
Department of Applied Science for Integrated System Engineering, Graduate School of Engineering, Kyushu Institute of Technology
-
Miyasato Tatsuro
Department of Applied Science for Integrated System Engineering, Graduate School of Engineering, Kyushu Institute of Technology
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Onwona-Agyeman Boateng
Department of Applied Science for Integrated System Engineering, Kyushu Institute of Technology, 1-1 Sensui-machi, Tobata, Kitakyushu 804-8550, Japan
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Sun Yong
Department of Applied Science for Integrated System Engineering, Kyushu Institute of Technology, 1-1 Sensui-machi, Tobata, Kitakyushu 804-8550, Japan
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