Characteristics of the viscosity of liquid helium below 1K
Esel'son B.N. , Nosovitskaya O.S. , Pogorelov L.A. , Sobolev V.I.
The viscosity of pure He4 and of weak He3-He4 solutions is measured in the temperature range 1.2-0.4 K. It was found that the viscosity of both He4 and the solutions has a maximum corresponding to a temperature (0.63 K) that is independent of the He3 concentration.