Comments on gap anisotropy and nodal constant Fermi velocity in a superconductor, BSCCO

Abstract

On the basis of both the inhomogeneity of a superconductor, BSCCO-2212, and the effect of measurement, we reveal that an anomalously large gap anisotropy known as evidence of dx2-y2-wave symmetry [Phys. Rev. Lett. 70 (1993) 1553] is not intrinsic, and that the constant Fermi velocity at node as an unsolved problem [Nature 423 (2003) 398] is due to the dx2-y2-wave insulator-metal transition.

2 pages, 2 figures

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Cited by in corpus (2)

• High-$T_c$ mechanism through analysis of diverging effective mass for YaBa${}_2$Cu${}_3$O${}_{6+x}$ and pairing symmetry in cuprate superconductors
• Fallacies on pairing symmetry and intrinsic electronic Raman spectrum in high-Tc cuprate superconductors