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Torsion pendulum for the study of thin 3He films
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Morley, Gavin, Casey, A., Lusher, C. P., Cowan, B., Saunders, J. and Parpia, J. M. (2002) Torsion pendulum for the study of thin 3He films. Journal of Low Temperature Physics, Volume 126 (Number 1/2). pp. 557-562. doi:10.1023/A:1013767117903 ISSN 0022-2291.
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Official URL: http://dx.doi.org/10.1023/A:1013767117903
Abstract
We report on the design of a torsion pendulum that can resolve the mass loading from 5×10 17 3 He atoms (equivalent to a 1000Å film) with a 0.1% resolution. The oscillator is fabricated from coin silver alloy, and the working surfaces are two highly polished coin silver discs, each with well-characterized surface roughness, that are diffusion welded together using a copper gasket. We report on the cell's temperature dependent background. The cell will be used to examine the evolution of the superfluid density and transition temperature as a function of film thickness as well as the normal fluid behavior.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Journal of Low Temperature Physics | ||||
| Publisher: | Springer New York LLC | ||||
| ISSN: | 0022-2291 | ||||
| Official Date: | January 2002 | ||||
| Dates: |
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| Volume: | Volume 126 | ||||
| Number: | Number 1/2 | ||||
| Page Range: | pp. 557-562 | ||||
| DOI: | 10.1023/A:1013767117903 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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