Nanowire formation by gold nano-fragment coalescence on quantized vortices in He II
- Moroshkin, Peter Department of Physics, University of Fribourg, Switzerland
- Lebedev, Victor Department of Physics, University of Fribourg, Switzerland
- Grobéty, Bernard Department of Geoscience, University of Fribourg, Switzerland
- Neururer, Christoph Department of Geoscience, University of Fribourg, Switzerland
- Gordon, E. B. Institute of Problems of Chemical Physics RAS, Chernogolovka, Russia
- Weis, Antoine Department of Physics, University of Fribourg, Switzerland
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10.05.2010
Published in:
- Europhysics Letters. - 2010, vol. 90, no. 3, p. 34002
English
We demonstrate that laser ablation of a gold target immersed in superfluid and normal fluid helium leads to the formation of elongated gold nano-fragments. In the superfluid phase these nano-fragments aggregate into filaments with extremely large aspect ratios displaying metallic electric conductivity. We attribute this unusual structure to the coalescence of gold particles trapped on quantized vortices. Our observations suggest new ways to visualize the structure of quantized vortex bundles and a new approach for producing centimeter-long metal nanowires.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique, Département de Géosciences
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 18243
- DOI 10.1209/0295-5075/90/34002
- Persistent URL
- https://folia.unifr.ch/unifr/documents/301587
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