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SURFACE SECOND SOUND AND KINETIC PHENOMENA AT THE SOLID HELIUM-HELIUM II INTERFACE BELOW 1 K.

[In Russian. / En russe.]

Author(s) : KOSEVIC Ju. A.

Type of article: Article

Summary

THE SPECTRUM, ATTENUATION AND INTERACTION OF THE MAJOR MODES OF MACROSCOPIC SURFACE OSCILLATIONS AT THE SOLID HELIUMHELIUM II INTERFACE ARE INVESTIGATED BY TAKING INTO ACCOUNT SUR-FACE SECOND SOUND AND SURFACE DISSIPATION. IT IS SHOWN THAT UNDER CONDITIONS WHEN THE SURFACE AND BULK THERMAL EXCITATIONS ARE IN THE HYDRODYNAMIC OSCILLATION REGIME, THE SECOND SOUND SURFACE WAVE IS A WEAKLY INHOMOGENEOUS SECOND SOUND BULK WAVE IN ONE OF THE CONTIGUOUS PHASES. IT IS EMPHASIZED THAT SURFACE SECOND SOUND IS A TEMPERATURE WAVE IN THE TWODIMENSIONAL GAS OF SURFACE THERMAL EXCITATIONS ONLY IF THE SURFACE EXCITATIONS ARE IN THE HYDRODYNAMIC OSCILLATION REGIME AND THE BULK EXCITATIONS ARE IN THE BALLISTIC OSCILLATION REGIME. THE INTERACTION AND MUTUAL TRANSFORMATION OF RAYLEIGH AND CRYSTALLIZATION WAVES ON AN ATOM-ROUGH INTERFACE IS ANALYZED.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1986-1755
  • Languages: Russian
  • Source: Z. eksp. teor. Fiz. - vol. 90 - n. 2
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

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