Critical Overpressure for Nucleation of 4He Crystals in Aerogel

被引：1
|
作者：
Matsuda, Hirofumi [1 ]
Masumoto, Ryota [1 ]
Ochi, Aguri [1 ]
Nomura, Ryuji [1 ]
Okuda, Yuichi [1 ]
机构：
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan
来源：
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5 | 2012年 / 400卷
关键词：
SUPERFLUID HE-3-HE-4 MIXTURES; CRYSTALLIZATION;
D O I：
10.1088/1742-6596/400/1/012044
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In an aerogel contained in a flat glass tube, we measured critical overpressures at which the very first He-4 crystal appeared. Crystallization and melting were repeated 50 times at a constant temperature in a variable volume cell and the nucleation probability as a function of overpressure was obtained. An anisotropic S shape characteristic of the nucleation process was successfully observed.
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页数：4
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