提示
龙云泽
-
44浏览
-
0点赞
-
0收藏
-
0分享
-
84下载
-
0评论
-
引用
期刊论文
Electrical conductivity of a single Au/polyaniline microfiber
APPLIED PHYSICS LETTERS 88, 162113 (2006) ，-0001，（）：
We report the measurements of conductivity, I-V curve, and magnetoresistance of a single Au/ polyaniline microfiber with a core-shell structure, on which a pair of platinum microleads was attached by focused ion beam. The Au/polyaniline microfiber shows a much higher conductivity(～110 S/cm at 300K) and a much weaker temperature dependence of resistance[R(4K)/R(300K)=5.1] as compared with those of a single polyaniline microtube RT=30-40 S/cm and R(4K)/R(300K)=16.2]. The power-law dependence of R(T) T−β, with=0.38, indicates that the measured Au/polyaniline microfiber is lying in the critical regime of the metal-insulator transition. In addition, the microfiber shows a H2 dependent positive magnetoresistance at 2, 4, and 6 K.
【免责声明】以下全部内容由[龙云泽]上传于[2010年03月13日 11时20分37秒]，版权归原创者所有。本文仅代表作者本人观点，与本网站无关。本网站对文中陈述、观点判断保持中立，不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考，并请自行承担全部责任。
本学者其他成果
同领域成果
