Share

DEVIATIONS FROM THE BCS RELATIONSHIP FOR THE SOUND ATTENUATION IN ANISOTROPIC SUPERCONDUCTORS.

[In Russian. / En russe.]

Author(s) : BEZUGLYJ E. V.

Type of article: Article

Summary

IN A METAL WITH AN ANISOTROPIC ELECTRON DISPERSION CURVE THE REGION OF A STEEP SOUND ATTENUATION DROP OBSERVED AT THE SUPERCONDUCTING TRANSITION CAN BE PRECEDED BY AN ATTENUATION RISE. SUCH A QUALITATIVE DIFFERENCE FROM THE BEHAVIOUR PREDICTED BY THE BARDEEN-COOPER-SCHRIEFFER (BCS) EXPRESSION IS DUE TO THE DEPENDENCE OF THE VELOCITY OF THE CARRIERS IN THE SUPERCONDUCTOR ON THE ENERGY IF THE FERMI SURFACE CONTAINS FLATTENED SPOTS. THIS ENTAILS ESSENTIAL MODIFICATION OF THE TEMPERATURE BEHAVIOUR OF THE SOUND VELOCITY.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1983-1663
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 9 - n. 1
  • Publication date: 1983
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (6)
See the source

Indexing