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  The geyser effect in the vacuum expansion of solid 3He0.544He0.46 and the determination of the Poisson ratio

Nieto, P., Benedek, G., & Toennies, J. P. (2012). The geyser effect in the vacuum expansion of solid 3He0.544He0.46 and the determination of the Poisson ratio. New Journal of Physics, 14: 013007. doi:10.1088/1367-2630/14/1/013007.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1115-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1116-4
Genre: Journal Article

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 Creators:
Nieto, Pablo, Author
Benedek, Giorgio1, Author              
Toennies, Jan Peter1, Author              
Affiliations:
1Emeritus Group Molecular Interactions, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063297              

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Free keywords: HCP 4He; BCC 3He; X-RAY; PLASTIC-DEFORMATION; ELASTIC-CONSTANTS; SOUND-PROPAGATION; HELIUM CRYSTALS; SINGLE-CRYSTALS; VACANCIES; TEMPERATURE
 Abstract: Periodic bursts, also called the geyser effect, previously observed in the vacuum expansion of pure and < 1% 3He-doped solid 4He, are shown to occur also in solid 3He-4He alloys. Results are reported for 3He0.54 4He0.46 for the temperature range of 1.73-2.13 K and pressures up to 92 bar, and then compared with the results for pure solid 4He. The geyser period is found to increase with pressure much faster in the mixed solid than in pure solid 4He. A direct measurement of the internal pressure exerted on the lateral walls of the source chamber provides the first information on the Poisson ratio of polycrystalline pure and mixed solids.

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Language(s): eng - English
 Dates: 2012-01-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 633807
DOI: 10.1088/1367-2630/14/1/013007
 Degree: -

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Title: New Journal of Physics
  Alternative Title : New J. Phys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 14 Sequence Number: 013007 Start / End Page: - Identifier: ISSN: 1367-2630