Abstract
Here we report use of angle scanning photoemission spectroscopy using polarized synchrotron light to explore the Fermi surface topology of Bi 2Sr 2CaCu 2O 8± δ superconductors. The measurements were made in different experimental geometry to take care of the polarization dependence of photoemission transition probability (matrix element effect) and discriminate the true features along the high symmetry directions. We find an asymmetric suppression of spectral weight around M(π,0) point indicating coupling of the itinerant carriers with an incommensurate charge density wave (ICDW) i.e. stripes, involving modulation of the orbital momentum.
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