Abstract
We have measured the vortex diffusivity in thin superfluid helium films adsorbed on a gold substrate at temperatures from 0.35 to 2.0 K. A quartz microbalance is operated at different frequencies and the diffusivity is extracted from the observed shifts of the transitions. Effects of pre-plating of the substrate with hydrogen on the vortex diffusivity were observed.
Original language | English |
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Pages (from-to) | 122-124 |
Number of pages | 3 |
Journal | Physica B: Condensed Matter |
Volume | 284-288 |
Issue number | PART I |
DOIs | |
State | Published - 2000 |
Keywords
- He film
- He superfluid film
- Vortex dynamics