Nanoscopic Filters as the Origin of d Wave Energy Gaps

Details Nanoscopic Filters as the Origin of d Wave Energy Gaps Nanoscopic Filters as the Origin of d Wave Energy Gaps

2003-04-22

arxiv.org/abs/cond-mat/0304501v1

Physics

Condensed Matter

Superconductivity

18 pages, 2 figures

Scientific paper

A ferroelastic nanoscopic checkerboard pattern of pseudo- and superconductive gaps has been resolved by scanning tunneling microscopy on BSCCO. Using this pattern one can derive [not assume] a macroscopic anisotropic d wave superconductive energy gap that agrees well with angle-resolved photoemission and Fourier transform scanning tunneling microscopy data. The derivation is orbital only [no spins], it explains chemical trends in Raman scattering peak positions and strengths, and it predicts an unexpected reversal of anisotropic Raman gap signatures between BSCCO and LSCO, in good agreement with experiment.

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