Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel

N. Mulders, J. T. West, Moses Hung-Wai Chan, C. N. Kodituwakku, C. A. Burns, L. B. Lurio

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

X-ray diffraction experiments show that solid He4 grown in aerogel is highly polycrystalline, with an hcp crystal structure (as in bulk) and a crystallite size of approximately 100 nm. In contrast to the expectation that the highly disordered solid will have a large supersolid fraction, torsional oscillator measurements show a behavior that is strikingly similar to high purity crystals grown from the superfluid phase. The low temperature supersolid fraction is only ∼3×10-4, and the onset temperature is ∼100mK.

Original languageEnglish (US)
Article number165303
JournalPhysical Review Letters
Volume101
Issue number16
DOIs
StatePublished - Oct 16 2008

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aerogels
synchrotrons
oscillators
purity
x rays
crystal structure
diffraction
crystals
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Mulders, N., West, J. T., Chan, M. H-W., Kodituwakku, C. N., Burns, C. A., & Lurio, L. B. (2008). Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel. Physical Review Letters, 101(16), [165303]. https://doi.org/10.1103/PhysRevLett.101.165303
Mulders, N. ; West, J. T. ; Chan, Moses Hung-Wai ; Kodituwakku, C. N. ; Burns, C. A. ; Lurio, L. B. / Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel. In: Physical Review Letters. 2008 ; Vol. 101, No. 16.
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Mulders, N, West, JT, Chan, MH-W, Kodituwakku, CN, Burns, CA & Lurio, LB 2008, 'Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel', Physical Review Letters, vol. 101, no. 16, 165303. https://doi.org/10.1103/PhysRevLett.101.165303

Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel. / Mulders, N.; West, J. T.; Chan, Moses Hung-Wai; Kodituwakku, C. N.; Burns, C. A.; Lurio, L. B.

In: Physical Review Letters, Vol. 101, No. 16, 165303, 16.10.2008.

Research output: Contribution to journalArticle

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Mulders N, West JT, Chan MH-W, Kodituwakku CN, Burns CA, Lurio LB. Torsional oscillator and synchrotron x-ray experiments on solid He4 in aerogel. Physical Review Letters. 2008 Oct 16;101(16). 165303. https://doi.org/10.1103/PhysRevLett.101.165303