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Mechanical Properties of Metallic One-Atom Quantum Point Contacts

  • G. R. Bollinger
  • N. Agraït
  • S. Vieira
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 547)

Abstract

It is possible to fabricate nanoscopic metallic structures moving the atoms one by one with a scanning tunneling microscope. This technique can be combined with atomic force microscopy, allowing for a combined study of the electronic transport and the mechanical behaviour during the fabrication of these nanoscopic structures. Our experiments show that there is a close relationship between conductance and applied force during the formation of one-atom quantum point contacts. It is shown taht the mechanical process of stretching an atomicsized metallic contact proceeds in a discrete sequence of structural transformations involving elastic and yielding stages.

We have also found that it is possible to obtain a chain of several single gold atoms from a one-atom contact of gold [2]. This new structure is a truly onedimensional conductor and the conductance is independent of its length and has the same value as a single one-atom contact of gold [3]: one conductance quantum (2e2/h).

Keywords

Mechanical Property Dynamical System State Physics Atomic Force Microscopy Electronic Transport 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    G. Rubio, N. Agrait and S. Vieira, Phys. Rev. Lett. 76, 2302–5 (1996)CrossRefGoogle Scholar
  2. 2.
    A.I. Yanson, G. Rubio Bollinger, H.E. van den Brom, N. Agraït, J.M. van Ruitenbeek, Nature 395, pp. 783–785, 1998.CrossRefGoogle Scholar
  3. 3.
    E. Scheer, N. Agraït, J.C. Cuevas, A. Levy Yeyati, B. Ludoph, A. Martín-Rodero, G. Rubio Bollinger, J.M. van Ruitenbeek, C. Urbina. Nature 395, pp. 154–157, 1998.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • G. R. Bollinger
    • 1
  • N. Agraït
    • 1
  • S. Vieira
    • 1
  1. 1.Laboratorio de Bajas Temperaturas Dpt. Fisica de la Materia CondensadaC-III Universidad Autonoma de MadridMadridSpain

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