Observation of an unconventional metal-insulator transition in overdoped CuO_2 compounds

F. Venturini, M. Opel, T. P. Devereaux +7

The electron dynamics in the normal state of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ is studied by inelastic light scattering over a wide range of doping. A strong anisotropy of the electron…