학술논문
Generation of Large Vortex-Free Superfluid Helium Nanodroplets
Document Type
Working Paper
Author
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; Tanyag, Rico Mayro P.
Source
Subject
Language
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
Comment: main article: 7 pages, 3 figures; supplementary material: 12 pages, 8 figures