Motion of metallic microparticles in superfluid helium in the presence of space charge

Moroshkin, Petr; Leiderer, Paul; Kono, Kimitoshi

Motion of metallic microparticles in superfluid helium in the presence of space charge

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2017

Autor:innen

Moroshkin, Petr

Leiderer, Paul

Kono, Kimitoshi

DOI (zitierfähiger Link)

https://doi.org/10.1063/1.4979819

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physics of Fluids. 2017, 29(4), 047106. ISSN 1070-6631. eISSN 1089-7666. Available under: doi: 10.1063/1.4979819

Zusammenfassung

We report an experimental and theoretical study of the motion of metallic micro- and nanoparticles in cryogenic superfluid helium in the presence of a static electric field. Depending on the polarity of the applied field, the system is charged with a large number of positive ions or free electrons. For the electrons, we observe the formation of a negative charge layer above the free surface of liquid He and a shuttle-like motion of metallic particles between this layer and the positively charged bottom electrode. For the positive ions, the positive space charge is created in the liquid and the particle motion resembles bouncing off the (negatively charged) bottom electrode. The observations are explained by a theoretical model based on classical electrostatics and hydrodynamics.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

MOROSHKIN, Petr, Paul LEIDERER, Kimitoshi KONO, 2017. Motion of metallic microparticles in superfluid helium in the presence of space charge. In: Physics of Fluids. 2017, 29(4), 047106. ISSN 1070-6631. eISSN 1089-7666. Available under: doi: 10.1063/1.4979819

BibTex

@article{Moroshkin2017Motio-39223,
  year={2017},
  doi={10.1063/1.4979819},
  title={Motion of metallic microparticles in superfluid helium in the presence of space charge},
  number={4},
  volume={29},
  issn={1070-6631},
  journal={Physics of Fluids},
  author={Moroshkin, Petr and Leiderer, Paul and Kono, Kimitoshi},
  note={Article Number: 047106}
}

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Universitätsbibliographie

Ja