| Issue |
Europhys. Lett.
Volume 42, Number 4, May II 1998
|
|
|---|---|---|
| Page(s) | 443 - 448 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00269-3 | |
| Published online | 01 September 2002 | |
Can a superfluid droplet spread?
Max-Planck Institute for Colloid and Interface Science, Rudower Chaussee 5,
12489 Berlin-Adlershof, Germany
Received:
9
December
1997
Accepted:
23
March
1998
It is argued that a superfluid droplet which is placed onto a solid
substrate will, in a wide range of experimental parameters, acquire a
finite contact angle even if the substrate is completely wetted by the
liquid. This effect is due to the flow out of the droplet into the
saturated film covering the surface. It is closely related to the
Kontorovich effect and may explain recently reported observations of
non-spreading of superfluid 
on substrates which are known to be
wetted by helium.
PACS: 68.15.+e – Liquid thin films / 68.45.Gd – Wetting / 83.10.Bd – Kinematics of deformation and flow
© EDP Sciences, 1998
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