Physics – Condensed Matter – Superconductivity
Scientific paper
2004-09-08
Physics
Condensed Matter
Superconductivity
5 pages, 5 figures; Proceedings of SNS 2004, Sitges, Spain
Scientific paper
We discuss a wealth of data from various types of experiments which together suggest that the superconducting state of optimally to overdoped BSCCO-2212 can be well-described by the BCS theory with a d-wave gap together with small-angle scattering from out-of-plane defects. These include scanning tunnelling Fourier transform spectroscopy observation of nanoscale inhomogeneity in the local gap edge position, the narrowing of the antinodal ARPES spectrum when BSCCO becomes superconducting, as well as the behavior of the microwave and thermal conductivities. We suggest that the large amount of small-angle scattering in BSCCO can account for the differences between the superconducting properties of BSCCO and YBCO.
Hirschfeld Peter J.
Nunner Tamara S.
Scalapino Douglas J.
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