No Effect of Steady Rotation on Solid 4He in a Torsional Oscillator

M. J. Fear, P. M. Walmsley*, D. E. Zmeev, Jere Mäkinen, A. I. Golov

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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We have measured the response of a torsional oscillator containing polycrystalline hcp solid He to applied steady rotation in an attempt to verify the observations of several other groups that were initially interpreted as evidence for macroscopic quantum effects. The geometry of the cell was that of a simple annulus, with a fill line of relatively narrow diameter in the centre of the torsion rod. Varying the angular velocity of rotation up to 2 rad s showed that there were no step-like features in the resonant frequency or dissipation of the oscillator and no history dependence, even though we achieved the sensitivity required to detect the various effects seen in earlier experiments on other rotating cryostats. All small changes during rotation were consistent with those occurring with an empty cell. We thus observed no effects on the samples of solid He attributable to steady rotation.

Original languageEnglish
Pages (from-to)106-112
Number of pages7
JournalJournal of Low Temperature Physics
Issue number3-4
Publication statusPublished - May 2016
MoE publication typeA1 Journal article-refereed


  • Solid helium
  • Torsional oscillator
  • Rotating cryostat


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