Strong and complex electron-lattice correlation in optimally doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$

G. -H. Gweon, S. Y. Zhou, M. C. Watson +3

We discuss the nature of electron-lattice interaction in optimally doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ samples, using isotope effect (IE) in angle resolved photoemission spectrosco…