Regensburg 2004 – scientific programme

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O: Oberflächenphysik

O 24: Nanostrukturen II

O 24.7: Talk

Tuesday, March 9, 2004, 17:15–17:30, H38

STM-based nanolithography in diamond-like carbon layers — •Thomas Mühl — IFW Dresden, Helmholtzstr. 20, D-01069 Dresden

The spatially localized emission current of a scanning tunneling microscope tip leads to a local graphitization of diamond-like carbon thin films. Using this technique, lines and dots smaller than 10 nm in size can be written. Due to the widely different properties of diamond-like and graphite-like carbon, there are a lot of possible applications of these graphite nanostructures on the diamond film. Systematic investigations of the current, voltage, and charge dependence combined with analytical methods like tunneling spectroscopy lead to some preliminary conclusions about the underlying modification mechanism on the atomic scale.