Evidence of 4He Crystallization via Quantum Tunneling at mK Temperatures

Ruutu, J. P.; Hakonen, Pertti J.; Penttilä, J. S.; Babkin, A. V.; Saramäki, J. P.; Sonin, E. B.

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Evidence of 4He Crystallization via Quantum Tunneling at mK Temperatures

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Title:	Evidence of 4He Crystallization via Quantum Tunneling at mK Temperatures
Author(s):	Ruutu, J. P. ; Hakonen, Pertti J. ; Penttilä, J. S. ; Babkin, A. V. ; Saramäki, J. P. ; Sonin, E. B.
Date:	1996
Language:	en
Pages:	2514-2517
Department:	Teknillisen fysiikan laitos Department of Applied Physics
Series:	Physical Review Letters, Volume 77, Issue 12
ISSN:	0031-9007 (printed)
DOI-number:	10.1103/physrevlett.77.2514
Subject:	Physics
Keywords:	solid 4He, crystallization, nucleation
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Citation: Ruutu, J. P. & Hakonen, Pertti J. & Penttilä, J. S. & Babkin, A. V. & Saramäki, J. P. & Sonin, E. B. 1996. Evidence of 4He Crystallization via Quantum Tunneling at mK Temperatures. Physical Review Letters. Volume 77, Issue 12. 2514-2517. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.77.2514.
Abstract: We have investigated creation of 4He crystals from the superfluid phase at the temperature range 2 mK–1.0 K. Statistical nucleation-event distributions in overpressure were found to be broad, asymmetric, and temperature independent below 100 mK. Our statistical analysis agrees with a theoretical model suggesting that solid formation is driven by macroscopical quantum-mechanical fluctuations from a seed preexisting in a cavity on the wall.
Rights: © 1996 American Physical Society (APS). This is the accepted version of the following article: Ruutu, J. P. & Hakonen, Pertti J. & Penttilä, J. S. & Babkin, A. V. & Saramäki, J. P. & Sonin, E. B. 1996. Evidence of 4He Crystallization via Quantum Tunneling at mK Temperatures. Physical Review Letters. Volume 77, Issue 12. 2514-2517. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.77.2514, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.77.2514.
Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-201509104255 Email this Export to RefWorks QR Code Print BibTex Tweet

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