Phase diagram and oxygen stoichiometry of Y‐Ba‐Cu‐O thin films

We have performed an exhaustive study of the phase diagram of Y‐Ba‐Cu‐O thin films using chemical analysis, energy dispersive x‐ray spectroscopy, Auger electron spectroscopy, and x‐ray diffraction. We show that Raman scattering can provide information regarding impurity phases and oxygen stoichiometry in thin films