1. Generation of Large Vortex-Free Superfluid Helium Nanodroplets
- Author
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Ulmer, Anatoli, Heilrath, Andrea, Senfftleben, Björn, O'Connell-Lopez, Sean M. O., Kruse, Björn, Seiffert, Lennart, Kolatzki, Katharina, Langbehn, Bruno, Hoffmann, Andreas, Baumann, Thomas M., Boll, Rebecca, Chatterley, Adam S., De Fanis, Alberto, Erk, Benjamin, Erukala, Swetha, Feinberg, Alexandra J., Fennel, Thomas, Grychtol, Patrik, Hartmann, Robert, Ilchen, Markus, Izquierdo, Manuel, Krebs, Bennet, Kuster, Markus, Mazza, Tommaso, Montaño, Jacobo, Noffz, Georg, Rivas, Daniel E., Schlosser, Dieter, Seel, Fabian, Stapelfeldt, Henrik, Strüder, Lothar, Tiggesbäumker, Josef, Yousef, Hazem, Zabel, Michael, Ziolkowski, Pawel, Meyer, Michael, Ovcharenko, Yevheniy, Vilesov, Andrey F., Möller, Thomas, Rupp, Daniela, and Tanyag, Rico Mayro P.
- Subjects
Condensed Matter - Mesoscale and Nanoscale Physics ,Physics - Atomic and Molecular Clusters ,Physics - Fluid Dynamics - Abstract
Superfluid helium nanodroplets are an ideal environment for the formation of metastable, self-organized dopant nanostructures. However, the presence of vortices often hinders their formation. Here, we demonstrate the generation of vortex-free helium nanodroplets and explore the size range in which they can be produced. From x-ray diffraction images of xenon-doped droplets, we identify that single compact structures, assigned to vortex-free aggregation, prevail up to $10^8$ atoms per droplet. This finding builds the basis for exploring the assembly of far-from-equilibrium nanostructures at low temperatures., Comment: main article: 7 pages, 3 figures; supplementary material: 12 pages, 8 figures
- Published
- 2023