Open AccessSpecificity of the second sound standing waves behavior in a medium with nanoparticles
Author(s) -
A A Esina,
В. М. Ефимов
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2056/1/012040
Subject(s) - attenuation , second sound , sound (geography) , superfluidity , acoustics , wave propagation , sound propagation , component (thermodynamics) , physics , resonator , materials science , mechanics , optics , condensed matter physics , thermodynamics
The experimental studies of the second sound waves propagation in a resonator with a deuterium-helium gel were carried out. The latest experimental results, combined with those obtained in earlier experiments, have shown that the propagation of the second sound waves in gels leads to their significant attenuation and a decrease in the propagation velocity. This behavior differs from the case of the propagation of the sound waves of a two-component system with a strongly slow normal component and may indicate changes in the properties of superfluidity under confined geometry conditions.