Superstripes by anomalous X-ray diffraction and angle resolved photoemission in Bi2212

We show an evidence for the superconducting stripes (superstripes) in the Bi2212 system by joint x-ray diffraction and angle resolved photoemission. The kink observed at k(y)0.4 pi in the energy distribution curves is shown to be related to a modulation of the Cu displacement out of the oxygen plane with a wavevector Q similar to (0.4 pi ,0.4 pi) that modulates the next-nearest neighbor hopping integral t'. The resulting Fermi surface reveals broken segments around the M points due to the modulation of the t, associated with modulation of the electron-lattice coupling lambda(epsilon) that depends on the micro strain epsilon of the CuO(2) plane. The present findings further enlightens the fact that the micro-strain, controlling the electron-lattice coupling lambda(epsilon) is a critical parameter for the superstripes.