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arXiv 1402.4948cond-mat.mes-hall
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通过共振动量交换提高碳纳米管网络的电导

Improving the conductance of carbon nanotube networks through resonant momentum exchange

Robert A. Bell, Michael C. Payne, Arash A. Mostofi

摘要:

我们提出了一种通过提高不同手性碳纳米管之间的电导来提高碳纳米管网络电导率的机制。我们认为,一般来说,一个弱的扰动可以大大提高管间电导,通过允许动量守恒隧穿。该机制进行了验证与紧束缚模型,允许调查其影响的网络包含一系列的手征。我们讨论了实际的实现,并得出结论,它可能是由弱的物理相互作用的影响,因此不需要化学键合到碳纳米管。

英文摘要:

We present a mechanism to improve the conductivity of carbon nanotube (CNT) networks by improving the conductance between CNTs of different chirality. We argue generally that a weak perturbation can greatly improve the inter-tube conductance by allowing momentum-conserving tunnelling. The mechanism is verified with a tight-binding model, allowing an investigation of its impact for a network containing a range of chiralities. We discuss practical implementations, and conclude that it may be effected by weak physical interactions, and therefore does not require chemical bonding to the CNTs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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