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Determination of the intershell conductance in multiwalled carbon nanotubes -: art. no. 176806
被引:170
作者:
Bourlon, B
Miko, C
Forró, L
Glattli, DC
Bachtold, A
机构:
[1] Ecole Normale Super, Lab Pierre Aigrain, F-75231 Paris 05, France
[2] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
[3] CEA Saclay, SPEC, F-91191 Gif Sur Yvette, France
关键词:
D O I:
10.1103/PhysRevLett.93.176806
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
We report on the intershell electron transport in multiwalled carbon nanotubes (MWNTs). To do this, local and nonlocal four-point measurements are used to study the current path through the different shells of a MWNT. For short electrode separations less than or similar to1 mum the current mainly flows through the two outer shells, described by a resistive transmission line with an intershell conductance per length of similar to(10 kOmega)(-1)/mum. The intershell transport is tunnel type and the transmission is consistent with the estimate based on the overlap between pi orbitals of neighboring shells.
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页码:176806 / 1
页数:4
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