Superconductivity in ropes of carbon nanotubes

被引：17

作者：

Ferrier, M

De Martino, A

Kasumov, A

Guéron, S

Kociak, M

Egger, R

Bouchiat, H

机构：

[1] Univ Dusseldorf, Inst Theoret Phys, D-40225 Dusseldorf, Germany

[2] Univ Paris 11, Phys Solide Lab, CNRS, F-91405 Orsay, France

[3] Russian Acad Sci, Inst Microelect Technol & High Pur Mat, Chernogolovka 142432, Moscow Region, Russia

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 9-10期

基金：

俄罗斯基础研究基金会;

关键词：

nanostructures; electron transport; superconductors; phase transitions;

D O I：

10.1016/j.ssc.2004.05.044

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recent experimental and theoretical results on intrinsic superconductivity in ropes of single-wall carbon nanotubes are reviewed and compared. We find strong experimental evidence for superconductivity when the distance between the normal electrodes is large enough. This indicates the presence of attractive phonon-mediated interactions in carbon nanotubes, which can even overcome the repulsive Coulomb interactions. The effective low-energy theory of rope superconductivity explains the experimental results on the temperature-dependent resistance below the transition temperature in terms of quantum phase slips. Quantitative agreement with only one fit parameter can be obtained. Nanotube ropes thus represent superconductors in an extreme ID limit never explored before. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：615 / 623

页数：9

共 42 条

[1] Local density of states in a dirty normal metal connected to a superconductor [J].