Fig. 5
From: When superfluidity meets superconductivity in the extraction of 3He isotope from liquid helium
Temperature evolution below the \(\lambda\)-transition before and during the thermomechanical operation of the YBCO-123 entropy filter in superfluid helium. Insert shows the points 1 where the heater is on, and 2 where the system reaches equilibrium. These points were used to evaluate \(\textit{k}_{x}\).
