Nucleation of helium-4 crystals at millikelvin temperatures

Jari Penttilä; Jussi Ruutu; Alexei Babkin; Pertti Hakonen; Edouard Sonin

doi:10.1007/BF02569649

Nucleation of helium-4 crystals at millikelvin temperatures

Jari Penttilä^*, Jussi Ruutu, Alexei Babkin, Pertti Hakonen, Edouard Sonin

^*Corresponding author for this work

Department of Applied Physics

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

We have measured overpressures needed to nucleate helium-4 crystals at temperatures 2 mK - 1.0 K. Distributions of nucleation pressures were recorded using a sensitive capacitive pressure gauge with a resolution of 0.3/μbar. Above 100 mK the median value of the distribution decreased according to T^-1/2 as expected for thermal fluctuations. Below 100 mK we observed a crossover to a temperature independent regime.

Original language	English
Pages (from-to)	467-468
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1007/BF02569649
Publication status	Published - 1996
MoE publication type	A1 Journal article-refereed

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10.1007/BF02569649

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title = "Nucleation of helium-4 crystals at millikelvin temperatures",

abstract = "We have measured overpressures needed to nucleate helium-4 crystals at temperatures 2 mK - 1.0 K. Distributions of nucleation pressures were recorded using a sensitive capacitive pressure gauge with a resolution of 0.3/μbar. Above 100 mK the median value of the distribution decreased according to T-1/2 as expected for thermal fluctuations. Below 100 mK we observed a crossover to a temperature independent regime.",

author = "Jari Penttil{\"a} and Jussi Ruutu and Alexei Babkin and Pertti Hakonen and Edouard Sonin",

year = "1996",

doi = "10.1007/BF02569649",

language = "English",

volume = "46",

pages = "467--468",

journal = "Czechoslovak Journal of Physics",

issn = "0011-4626",

publisher = "Springer",

number = "SUPPL. 1",

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T1 - Nucleation of helium-4 crystals at millikelvin temperatures

AU - Penttilä, Jari

AU - Ruutu, Jussi

AU - Babkin, Alexei

AU - Hakonen, Pertti

AU - Sonin, Edouard

PY - 1996

Y1 - 1996

N2 - We have measured overpressures needed to nucleate helium-4 crystals at temperatures 2 mK - 1.0 K. Distributions of nucleation pressures were recorded using a sensitive capacitive pressure gauge with a resolution of 0.3/μbar. Above 100 mK the median value of the distribution decreased according to T-1/2 as expected for thermal fluctuations. Below 100 mK we observed a crossover to a temperature independent regime.

AB - We have measured overpressures needed to nucleate helium-4 crystals at temperatures 2 mK - 1.0 K. Distributions of nucleation pressures were recorded using a sensitive capacitive pressure gauge with a resolution of 0.3/μbar. Above 100 mK the median value of the distribution decreased according to T-1/2 as expected for thermal fluctuations. Below 100 mK we observed a crossover to a temperature independent regime.

UR - http://www.scopus.com/inward/record.url?scp=77957892735&partnerID=8YFLogxK

U2 - 10.1007/BF02569649

DO - 10.1007/BF02569649

M3 - Article

AN - SCOPUS:77957892735

SN - 0011-4626

VL - 46

SP - 467

EP - 468

JO - Czechoslovak Journal of Physics

JF - Czechoslovak Journal of Physics

IS - SUPPL. 1

ER -

Nucleation of helium-4 crystals at millikelvin temperatures

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