The combined effects of phonon attenuation and impedance matching on Kapitza resistance

The Kapitza resistance for Cu-HeII has been calculated using an acoustic mismatch theory which includes the effects of transverse waves in the dense helium region at the liquid-solid interface and phonon attenuation in the copper. The impedance matching becomes significant above 0.1 K.

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Bibliographic Details
Published in:Physics letters. A 1974-01, Vol.46 (7), p.465-466
Main Authors: Opsal, J.L., Pollack, G.L.
Format: Article
Language:English
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Summary:The Kapitza resistance for Cu-HeII has been calculated using an acoustic mismatch theory which includes the effects of transverse waves in the dense helium region at the liquid-solid interface and phonon attenuation in the copper. The impedance matching becomes significant above 0.1 K.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(74)90966-9