Share

SECOND SOUND IN SUPERFLUID HELIUM 3.

Type of article: Article

Summary

HELIUM 3 DOES NOT ADMIT READILY WAVE PROPAGATION MODE, MAINLY BECAUSE OF RAPID ATTENUATION OF THE MODE IN THE SUPERFLUID DUE TO ABNORMAL THERMODYNAMIC BEHAVIOUR OF THE ENTROPY OF HELIUM 3 SUPERFLUID PHASE. HOWEVER, APPLICATION OF INTENSE MAGNETIC FIELD (1-2 KGAUSS) GIVES RISE TO A NARROW REGION A1-PHASE OF THE SUPERFLUID A-PHASE OF HELIUM 3 CAPABLE OF SUPPORTING THE PROPAGATION OF SECOND SOUND MODE. IN FACT, A-PHASE SPLITS INTO TWO SUBCOMPONENTS A1 AND A2 IN WHICH THE CONSTITUENT BOSE PAIRS CAN GENERATE SPIN WAVE PROPAGATED ACROSS THEIR INTERFACE REGION. THIS SPIN WAVE, WHEN REINFORCED BY THE GENERATION OF SECOND SOUND, GENERATES A HYBRID SECOND SOUND WAVE MODE. J.V.

Details

  • Original title: SECOND SOUND IN SUPERFLUID HELIUM 3.
  • Record ID : 1983-0004
  • Languages: English
  • Source: Phys. Rev. Lett. - vol. 45
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

Links


See the source

Indexing