Scaling of the conductance in gold nanotubes

Miriam del Valle, Carlos Tejedor, and Gianaurelio Cuniberti
Phys. Rev. B 74, 045408 – Published 10 July 2006

Abstract

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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  • Received 14 February 2006

DOI:https://doi.org/10.1103/PhysRevB.74.045408

©2006 American Physical Society

Authors & Affiliations

Miriam del Valle1,2, Carlos Tejedor1, and Gianaurelio Cuniberti2

  • 1Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Facultad de Ciencias, C-V, E-28049 Madrid, Spain
  • 2Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany

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Issue

Vol. 74, Iss. 4 — 15 July 2006

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