Home
For authors
Submission status

Current
Archive
Archive (English)
   Volumes 21-40
   Volumes 1-20
   Volumes 41-62
      Volume 62
      Volume 61
      Volume 60
      Volume 59
      Volume 58
      Volume 57
      Volume 56
      Volume 55
      Volume 54
      Volume 53
      Volume 52
      Volume 51
      Volume 50
      Volume 49
      Volume 48
      Volume 47
      Volume 46
      Volume 45
      Volume 44
      Volume 43
      Volume 42
      Volume 41
Search
VOLUME 62 (1995) | ISSUE 1 | PAGE 53
Symmetry and anisotropy of the superconducting gap in layered cuprates: Analysis of experiments on photoemission and the influence of defects on the critical temperature
The anisotropy parameter χ, which appears in the formula for the critical temperature Tc as a function of the concentration of defects, is calculated on the basis of the results of experimental studies of the Fermi surface and superconducting gap Δ in high-rc superconductors by the method of angle-resolved photoemission spectroscopy. It is shown that the assumption of anisotropic s-pairing makes it possible to correlate the strong angular dependence of Δ in the a — b plane with the relatively weak sensitivity of Tc to atomic disordering. In this case ^«=0.1, which is an order of magnitude less than in the case of i/-pairing (χ= 1) and strongly anisotropic s-pairing (χ^ 1). © 1995