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

Research output: Contribution to journal › Article › 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
State	Published - 1996
Externally published	Yes

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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 = "אנגלית",

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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.

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DO - 10.1007/BF02569649

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AN - SCOPUS:77957892735

SN - 0011-4626

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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

Abstract

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