Influence of Annealing Temperature on Berthelot-Type Hopping Conduction Mechanism in Carbon-Nickel Composite Films

被引：0
|
作者：
V.Dalouji [1 ]
S.M.Elahi [2 ]
A.Ghaderi [3 ]
S.Solaymani [3 ]
机构：
[1] Department of Physics,Malayer University
[2] Plasma Physics Research Center,Science and Research Branch,Islamic Azad University
[3] Young Researchers and Elite Club,Kermanshah Branch,Islamic Azad University
来源：
Chinese Physics Letters | 2016年 / 33卷 / 05期
关键词：
of; it; is; be; for; FESEM; in; on;
D O I：
暂无
中图分类号：
TB383.2 [];
学科分类号：
摘要：
Electrical conductivity of carbon-nickel composite films annealed at temperatures 300,500 and 800℃ is studied over a temperature range of 50-300 K.While the conductivity data above room temperature show extended state conduction,lowering the temperature from 150 to 50 K leads to the Berthelot-type conduction mechanism.It can be seen that the films annealed at 500℃ have the maximum conductivity.The extent of the carrier wave function at 500℃ has the minima 2.87 × 10-7cm and 2.45 × 10-7cm in octahedral-metal stretching vibrations and intrinsic stretching vibrations of the metal at the tetrahedral site,respectively.The average distances between two vibration octahedral and tetrahedral sites at 500℃ also have the minima 1.13 × 10-7cm and 0.97 × 10-7cm,respectively.The Berthelot temperature for films annealed at 800℃ has the minimum of 94.3K.
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页码：96 / 99
页数：4
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