The non-Fermi liquid behavior and diagonal lattice stripes in cuprate superconductors

We have studied momentum distribution of photoemission intensity around the Fermi surface of Bi2Sr2CaCu2O8+delta (Bi2212) high T-c superconductor by a ngle-resolved photoemission. The line shape of the energy distribution curv es show a spectral function A(k,omega) expected for a non-Fermi liquid beha viour. The Fermi surface contour in the 'even symmetry' reveals the suppres sion of spectral weight due to coupling with joint incommensurate charge de nsity wave (ICDW) at q(- 0.4 pi,0.4 pi) in the diagonal direction and the s pin density wave (SDW) at G(pi,pi). Additional spectral weight is found at (0.6 pi,0.6 pi) due to scattering of electrons with SDW at optimum doping a s revealed by constant energy contour in 'odd symmetry'. (C) 1999 Published by Elsevier Science B.V. All rights reserved.