Abstract
Influence of finite-size effect upon the liquid helium heat capacity and the shift of the transition temperature are theoretically studied for the case of planar confinement. The analytical results are found to be in fair agreement with the number of experiments where the 4He films were ranged in thickness from 48 nm to 57 μm that could be referred to as the mesoscale. The contributions to the shift of transition temperature caused by the gravitation effect and by the finite-size effect are examined.
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