The nature of the electron-lattice interaction in cuprates
and its interplay with the spin degrees of freedom

Gey-Hong Gweon

Physics Department, University California Berkeley and
Materials Sciences Division, Lawrence Berkeley National Laboratory,
366 Le Conte Hall, 94720 Berkeley, USA

In this talk we present angle resolved photoemission study (ARPES) of the electron spectral function in single and double layer Bi2Sr2CaCu2O8+δ, high temperature superconductors. Result as a function of doping, temperature, momentum and isotope substitution will be presented. Evidence of a strong correlation between the electron-lattice and electron-electron interaction will be presented and addressed in terms of a physical scenario where the physics of high Tc is put in a similar framework as Spin Peierls systems. This work was supported by Department of Energy (DOE), National Science Foundation (NSF), Sloan Foundation and Hellman Fellowship.