Formation of superfluid liquid pocket in aerogel and its solidification by cooling

Formation of superfluid liquid pockets of ⁴He surrounded by ⁴He crystals were observed in an aerogel of 96% porosity. The liquid pockets did not crystallize by application of pressure but crystallized via avalanche by cool-ing below a particular temperature. The crystallization by cooling was also o...

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Veröffentlicht in:Физика низких температур
Datum:2013
Hauptverfasser: Matsuda, H., Ochi, A., Isozaki, R., Nomura, R., Okuda, Y.
Format: Artikel
Sprache:English
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2013
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/118749
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Formation of superfluid liquid pocket in aerogel and its solidification by cooling / H. Matsuda, A. Ochi, R. Isozaki, R. Nomura, Y. Okuda // Физика низких температур. — 2013. — Т. 39, № 9. — С. 1006–1011. — Бібліогр.: 34 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Zusammenfassung:Formation of superfluid liquid pockets of ⁴He surrounded by ⁴He crystals were observed in an aerogel of 96% porosity. The liquid pockets did not crystallize by application of pressure but crystallized via avalanche by cool-ing below a particular temperature. The crystallization by cooling was also observed when crystals occupied a smaller portion of the aerogel. Driving force for the crystallization by cooling and possible mass transport process are discussed.
ISSN:0132-6414