Conductive nanodots on the surface of irradiated CaF2 - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles phys. stat. sol. (RRL) Year : 2008

Conductive nanodots on the surface of irradiated CaF2

T. Roll
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M. Meier
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M. Schleberger
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CaF2(111) single crystal surfaces have been irradiated with fast heavy ions under oblique angles resulting in chains of nanosized hillocks. In order to characterize these nanodots with respect to their conductivity we have applied non-contact atomic force microscopy using a magnetic tip. Measurements in ultra high vacuum as well as under ambient conditions reveal a clearly enhanced electromagnetic interaction between the magnetic tip and the nanodots. The dissipated energy per cycle is comparable to the value found for metals, indicating that the interaction of the ion with the target material leads to the creation of metallic Ca nanodots on the surface.
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Dates and versions

cea-00371815 , version 1 (30-03-2009)


  • HAL Id : cea-00371815 , version 1


T. Roll, M. Meier, S. Akcöltekin, M. Klusmann, Henning Lebius, et al.. Conductive nanodots on the surface of irradiated CaF2. phys. stat. sol. (RRL), 2008, 2 (5), pp.209-211. ⟨cea-00371815⟩
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