A Structural Probe of the Doped Holes in Cuprate Superconductors
A Structural Probe of the Doped Holes in Cuprate Superconductors
An unresolved issue concerning cuprate superconductors is whether the distribution of carriers in the CuO2 plane is uniform or inhomogeneous. Because the carriers comprise a small fraction of the total charge density and may be rapidly fluctuating, modulations are difficult to detect directly. We demonstrate that in anomalous x-ray scattering …