Abstract
Possiblity to utilize thermal conductivity to study superfluid thin4He films on porous glass has been examined in temperature range T=(0.6–1.1)K. The datailed measurements performed for the film in normal state can be qualitatively described by the ideal gas conductance. In the superfluid state at T≈0.6K a sharp increase of the temperature gradient along the sample at a critical heating power has been observed below Tc. This feature is similar to that at T≈1K, where thermal conductivity technique is supposed to be applicable
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