Coupled motion of Xe clusters and quantum vortices in He nanodroplets

Single He nanodroplets doped with Xe atoms are studied via ultrafast coherent x-ray diffraction imaging. The diffraction images show that rotating He nanodroplets about 200 nm in diameter contain a small number of symmetrically arranged quantum vortices decorated with Xe clusters. Furthermore, unexp...

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Bibliographic Details
Published in:Physical review. B 2016-05, Vol.93 (18)
Main Authors: Jones, Curtis F., Bernando, Charles, Tanyag, Rico Mayro P., Bacellar, Camila, Ferguson, Ken R., Gomez, Luis F., Anielski, Denis, Belkacem, Ali, Boll, Rebecca, Bozek, John, Carron, Sebastian, Cryan, James, Englert, Lars, Epp, Sascha W., Erk, Benjamin, Foucar, Lutz, Hartmann, Robert, Neumark, Daniel M., Rolles, Daniel, Rudenko, Artem, Siefermann, Katrin R., Weise, Fabian, Rudek, Benedikt, Sturm, Felix P., Ullrich, Joachim, Bostedt, Christoph, Gessner, Oliver, Vilesov, Andrey F.
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Helium-4 superfluids
Vortices in superfluids
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Summary:Single He nanodroplets doped with Xe atoms are studied via ultrafast coherent x-ray diffraction imaging. The diffraction images show that rotating He nanodroplets about 200 nm in diameter contain a small number of symmetrically arranged quantum vortices decorated with Xe clusters. Furthermore, unexpected large distances of the vortices from the droplet center (≈0.7-0.8 droplet radii) are explained by a significant contribution of the Xe dopants to the total angular momentum of the droplets and a stabilization of widely spaced vortex configurations by the trapped Xe clusters.
ISSN:2469-9950
2469-9969