Temperature Independent Nucleation of Solid Helium 4 Below 1K

被引:0
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作者
Yutaka Sasaki
Takao Mizusaki
机构
[1] Kyoto University,Department of Physics, Graduate School of Science
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Helium; Magnetic Material; Nucleation Rate; Superfluid Helium; Solid Helium;
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摘要
Nucleation of solid helium in superfluid helium was studied in a temperature range between 50mK and 1K. Pulsed electrostatical compression was employed to initiate nucleation in a slightly overpressurized superfluid helium. The nucleation rate w was estimated from a distribution of the overpressure Peffrequired for nucleation. The temperature dependence of Peffat constant ω was essentially flat between 50mK and 1K. The ln ω was almost linear in Peffwithin the resolution of our data.
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页码:491 / 496
页数:5
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