Journal article

Formation of metallic nanowires by laser ablation in liquid Helium

  • Lebedev, Victor Department of Physics, University of Fribourg, Switzerland
  • Moroshkin, Peter Department of Physics, University of Fribourg, Switzerland
  • Grobéty, Bernard Department of Geosciences, University of Fribourg, Switzerland
  • Gordon, Eugene nstitute of Problems of Chemical Physics RAS, Chernogolovka, Russia
  • Weis, Antoine Department of Physics, University of Fribourg, Switzerland
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Published in:
  • Journal of Low Temperature Physics. - 2011, vol. 165, no. 3-4, p. 166-176
English Laser ablation of metals in liquid helium results in the formation of metal filaments with diameters on the order of 2–10 nanometres and of spherical nanoparticles. In superfluid helium these nanowires aggregate into centimeter-sized networks. We study the morphology and the electric conductivity of these large aggregates, as well as extinction spectra and the crystalline structure of the individual nanofragments. We discuss the effect of superfluidity on the mechanisms of coalescence processes at the nanometer and centimeter scales.
Faculté des sciences et de médecine
Département de Physique, Département de Géosciences
  • English
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