Low Temperature Physics: 39, 752 (2013); https://doi.org/10.1063/1.4821076
Fizika Nizkikh Temperatur: Volume 39, Number 9 (September 2013), p. 970-974    ( to contents , go back )

Kapitza resistance between superfluid helium and solid: role of the boundary

J. Amrit and A. Ramiere

Laboratoire d’Informatique pour la Mécanique et les Sciences de l’Ingénieur, LIMSI-CNRS UPR 3251, Université Paris Sud, Rue John von Neumann, Orsay 91403, France
E-mail: jay.amrit@limsi.fr
pos Анотація:

Received March 14, 2013


Kapitza resistance measurements conducted at T > 1 K on silicon and niobium single crystals in contact with helium demonstrate respectively the importance of atomic scale surface roughness and dislocations due to surface damage at the boundary. Two different experimental configurations were used.

PACS: 62.60.+v Acoustical properties of liquids;
PACS: 63.20.kp Phonon-defect interactions;
PACS: 67.80.bd Superfluidity in solid 4He, supersolid 4He.

Key words: Kapitza thermal resistance, solid-helium interfaces.

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