Phonon Signature of Charge Inhomogeneity in High Temperature Superconductors YBa2Cu3O{6+x}

Y. Petrov, T. Egami, R. J. McQueeney +3

Temperature and composition dependences of high-energy longitudinal optical (LO) phonons in YBa2Cu3O{6+x}, studied by inelastic neutron scattering measurements, provide clear evide…