On the Possibility of "Dry" Friction in Superfluid He-4

Details On the Possibility of "Dry" Friction in Superfluid He-4 On the Possibility of "Dry" Friction in Superfluid He-4

2011-02-27

arxiv.org/abs/1102.5490v1

Ukr. J. Phys. v. 56, p. 144 (2011)

Physics

Condensed Matter

Other Condensed Matter

3 pages, 1 figure

Scientific paper

We propose a possible microscopic explanation of the exhaustion of \rho_s of
helium-II on the wall at T>T_{c} = 0.5 - 1 K and predict a possibility of the
existence in He-II of the "dry" friction at T < T_{c}. Both of the effects
connect with that the energy of the 2D-rotons is 2K less then the energy of
3D-rotons, so the wall is a potential well for the last ones.

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