Materials Research Activities

B&R paper9 (1986)

Binnig & Rohrer, Paper 9 (Europhysics Letters):

By the time of the following publication (written with Fuchs, Gerber, Stoll, and Tosatti, submitted in September 1995 and published in early 1986) confidence was very high. In the meantime, other laboratories had reported success with STMs. And Binnig and Rohrer now had a pocket-size STM. It was incorporated into a scanning-electron/scanning-Auger microscope. The paper compared the actual measurements of graphite with a theoretical model devised by Tersoff and Hamann. Graphite was useful for the purpose, they argued, because it has an easily calculable electronic structure and because graphite as a semi-metal exhibits no reconstruction problems. It was also purchaseable off the shelf (Union Carbide Corp., product code 401A). The match between measurement and theory was good.

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[Graphite: measurement and model]. This paper also provided a further understanding of the STM in the sense of helping others to get replicable results. There is a graph showing how the corrugation becomes less pronounced with increased voltage, due to the dependence of the corrugation upon local density of states. Importantly, only the amplitude of the corrugation is affected. This was a very strong argument (was everyone convinced?) that the corrugation reveals the topography of the surface.

Do you have an insight into reactions to such arguments? Do let us know.

  • Introduction to Binnig & Rohrer's 1981-1986 publications

  • Paper 1 (Applied Physics Letters 1982)

  • Paper 2 (Physical Review Letters 1982)
  • Paper 3 (Surface Science 1982)
  • Paper 4 (Helvetica Physica Acta 1983)
  • Paper 5 (Surface Science Letters 1983)
  • Paper 6 (Physica 1984)
  • Paper 7 (Surface Science 1984)
  • Paper 8 (Surface Science Letters 1985)
  • Paper 9 (Europhysics Letters 1986), you are here
  • Paper10 (Scientific American 1986)
  • Interview with Binnig and Rohrer, to be featured soon - members may click here.

This page was last updated on 15 May 2001 by Arne Hessenbruch.