Electronic properties of super-hard carbon nanocrystallite film

被引：4
|
作者：
Matsuda, K
Hirono, S
Takayanagi, H
机构：
[1] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[2] NTT Afty Corp, Mitaka, Tokyo 1810031, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
carbon films; diamond-like carbon; electron cyclotron resonance sputtering;
D O I：
10.1016/S0921-4526(02)02273-1
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The carbon nanocrystallite (CNC) film is a new type of synthetic carbon material. Recently, it has been found that the film has large electric conductivity (similar to10(3)[S cm(-1)]) at room temperature, while its hardness is comparable to that of diamond. In this paper, we report the temperature dependence of electric conductivity from 1.7 to 500 K. While a hopping conductance has been observed at low temperature region (T < 200 K), conductivity increases with decreasing temperature for T > 250 K. Possible mechanism for the electric conductivity in the CNC films is the hopping conductivity in disordered media. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：1529 / 1530
页数：2
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