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66. 


Scaling of the conductance in gold nanotubes



M. del Valle, C. Tejedor, and G. Cuniberti

Physical Review B 74, 045408 (2006)

Selected for the July 24, 2006 issue of the
Virtual Journal of Nanoscale Science & Technology
.

A new form of gold nanobridges has been recently observed in ultrahigh-vacuum experiments, where gold atoms rearrange to build helical nanotubes, akin in some respects to carbon nanotubes. The good reproducibility of these wires and their unexpected stability allow for conductance measurements and make them promising candidates for future applications. We present here a study of the transport properties of these nanotubes in order to understand the role of chirality and of the different orbitals in quantum transport observables. The conductance per atomic row shows a light decreasing trend as the diameter grows, which is also shown through an analytical formula based on a one-orbital model.



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doi absolute link10.1103/PhysRevB.74.045408
online abstract at the publisher site
publisher site (ISSN:1550-235X)
online abstractarXiv preprint: cond-mat/0601540
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IF(2005): 3.185


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