To the theory of the electric activity of He II induced by waves of first and second sounds

Abstract

An approximate microscopic model is proposed for the explanation of the electric signal dU = k_B dT/(2e) observed by A.S. Rybalko in He II in the experiments with standing half-wave of second sound. The model is based on the idea, due to Gutlyanskii, of the one-directional polarization of He-4 atoms located at the electrode surface. The calculated parameters of the electric signal are in approximate agreement with the experimental ones. It is also predicted that a standing half-wave of first sound should induce a variable signal with amplitude dU ~ dp/(en) ~ 3*10^{-5} dp*V/atm at the electrode. It is shown also that the dependence of the polarizability of helium on temperature, A(T), can be explained if the tidal polarization of atoms is taken into account. A possibility of the existence of the "dry" friction in He II at temperatures T < 0.5-1 K is discussed.

arXiv comment22 pages, 5 figures, v2: reconstruction + Sec. 4 is added; v3: Sec. 5 is added; v4: final version, Sec. V and Appendix A are added

References in corpus (5)

• On the electric activity of superfluid systems
• Some mechanisms of "spontaneous" polarization of superfluid He-4
• On the mutual polarization of two He-4 atoms
• Polarization Effects in Superfluid ${}^4$He
• On the Possibility of "Dry" Friction in Superfluid He-4

Cited by in corpus (5)

• A Study of the Electric Response of He II at the Excitation of Second Sound Waves
• Superheat conductivity and electric activity of superfluid systems
• Electric fields generated by quantized vortices
• Acoustic modes in He I and He II in the presence of an alternating electric field
• Electric field and electric forces in a spontaneously polarized nonpolar isotropic dielectric