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Superconductivity in ropes of carbon nanotubes

机译:碳纳米管绳中的超导性

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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.
机译:综述和比较了单壁碳纳米管绳内本征超导的最新实验和理论结果。当正常电极之间的距离足够大时,我们发现了超导性的有力实验证据。这表明在碳纳米管中存在有吸引力的声子介导的相互作用,甚至可以克服排斥性库仑相互作用。有效的低能绳超导理论从量子相移的角度解释了在转变温度以下的温度相关电阻的实验结果。只能获得一个拟合参数的定量一致性。因此,纳米管绳在从未探索过的极端ID极限中代表超导体。 (C)2004 Elsevier Ltd.保留所有权利。

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