Optimized contact configuration for the study of transport phenomena in ropes of single-wall carbon nanotubes

被引:46
作者
Appenzeller, J [1 ]
Martel, R
Avouris, P
Stahl, H
Lengeler, B
机构
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA
[2] Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany
关键词
D O I
10.1063/1.1373413
中图分类号
O59 [应用物理学];
学科分类号
摘要
The study of the intrinsic transport properties of carbon nanotubes suffers from the difficulties in fabricating noninvasive contacts. Here, we present a scheme for the investigation of transport phenomena in metallic single-wall carbon nanotubes by means of a special four-terminal measurement configuration. To suppress the impact of the contacts on the measured conductance in a tube, we found a combination of top and bottom contacts to the rope of single-wall nanotubes to be most appropriate. Our experimental findings demonstrate that a linear decrease of the sample resistance can be observed under these circumstances without the common increase of resistance for decreasing temperatures. (C) 2001 American Institute of Physics.
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收藏
页码:3313 / 3315
页数:3
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