Ensemble averaging of conductance fluctuations in multiwall carbon nanotubes -: art. no. 27

被引：24
|
作者：
Stojetz, B [1 ]
Hagen, C
Hendlmeier, C
Ljubovic, E
Forró, L
Strunk, C
机构：
[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany
[2] FBS Swiss Fed Inst Technol EPFL, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland
来源：
NEW JOURNAL OF PHYSICS | 2004年 / 6卷
关键词：
D O I：
10.1088/1367-2630/6/1/027
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report resistance measurements for a single multiwall carbon nanotube as a function of gate voltage and perpendicular magnetic field. The tubes were trapped onto pre-patterned Al electrodes by means of an ac electric field. Magnetoresistance traces measured for various values of the gate voltage were averaged, which corresponds to an ensemble averaging of conductance fluctuations induced by quantum interference. The ensemble averaging decreases the conductance fluctuations, while leaving the weak localization contribution to the resistance unchanged. Our data can be consistently interpreted in terms quantum transport in the presence of a weak disorder.
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页数：8
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