大尺寸无涡旋超流氦纳米液滴的产生
Generation of Large Vortex-Free Superfluid Helium Nanodroplets.
作者信息
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, Ziołkowski Pawel, Meyer Michael, Ovcharenko Yevheniy, Vilesov Andrey F, Möller Thomas, Rupp Daniela, Tanyag Rico Mayro P
机构信息
Institute of Optics and Atomic Physics, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany.
Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany.
出版信息
Phys Rev Lett. 2023 Aug 18;131(7):076002. doi: 10.1103/PhysRevLett.131.076002.
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.
超流氦纳米液滴是形成亚稳态、自组织掺杂剂纳米结构的理想环境。然而，涡旋的存在常常阻碍它们的形成。在此，我们展示了无涡旋氦纳米液滴的产生，并探索了能够产生这些液滴的尺寸范围。通过对掺氙液滴的X射线衍射图像，我们确定，直至每个液滴含有10^8个原子，分配给无涡旋聚集的单个致密结构占主导地位。这一发现为探索低温下远离平衡态纳米结构的组装奠定了基础。
Zotero 插件