Published March 15, 1985 | Version v1
Journal article

Does the third mutual friction coefficient B'' exist

  • 1. Goupe de Physique des Solides de l'Ecole Normale Superieure, 75 - Paris (France)

Description

Precise measurements of the attenuation of a second-sound wave propagation axially in rotating He II at first sight suggest that the third mutual-friction coefficient B'' has a non-zero value (B'' = 0.021 at 1.9 K). But the observation of metastable states associated with various levels of attenuation is not reconcilable with the semi-classical model of the vortex line

Abstract (French)

Des mesures precises de l'attenuation d'un second son se propageant dans l'helium II en rotation parallelement la l'axe suggerent a priori que le coefficient de friction mutuelle B'' n'est pas nul (B'' = 0,021 a 1,9 K). Mais l'existence d'etats metastables correspondant a plusieurs niveaux de l'attenuation est incompatible avec le modele semi-classique de la ligne de tourbillons

Additional details

Additional titles

Original title (French)
Existe-t-il un troisieme coefficient de friction mutuelle B''

Publishing Information

Journal Title
J. Phys. (Paris), Lett.
Journal Volume
46
Journal Issue
6
Series
J. Phys. (Paris), Lett.
Journal Page Range
L.233-L.240
ISSN
0302-072X