The boundary resistance between superfluid ⁴He near Tλ and a solid surface

We report high-resolution measurements of the singular contribution Rb to the thermal boundary resistance between a solid surface and superfluid helium near the superfluid-transition temperature Tλ. The results confirm the observation by Murphy and Meyer that a gap between the cell end and the&#...

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Published in:Физика низких температур
Date:1998
Main Authors: Haiying Fu, Hanan Baddar, Kerry Kuehn, Guenter Ahlers
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1998
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/176369
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:The boundary resistance between superfluid ⁴He near Tλ and a solid surface / Haiying Fu, Hanan Baddar, Kerry Kuehn, Guenter Ahlers // Физика низких температур. — 1998. — Т. 24, № 2. — С. 101-103. — Бібліогр.: 14 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We report high-resolution measurements of the singular contribution Rb to the thermal boundary resistance between a solid surface and superfluid helium near the superfluid-transition temperature Tλ. The results confirm the observation by Murphy and Meyer that a gap between the cell end and the
 sidewall leads to an apparent finite-current contribution to Rb . In the absence of such a gap, overall
 agreement of Rb with theoretical predictions is very good Remaining small differences require further
 investigations. Without a sidewall gap and within our resolution we found no finite-current effects over
 the range 3.9φW/cm² < Q < 221 φW/cm2.
ISSN:0132-6414