Study of structure and resistivity of electron-doped superconducting cuprates Eu1.85Ce0.15Cu1-yZnyO4+α-δ

Partially Zn-substituted for Cu in electron-doped superconducting cuprates of Eu1.85Ce0.15Cu1-yZny4+?-? (ECCZO) with y = 0, 0.01, 0.02, 0.05 and various ? values have been studied in order to elucidate the effect of nonmagnetic impurity of Zn to their structure and resistivity properties in the electron-doped cuprates. It has been found that the main peaks of T' structures are clearly observed in all samples. Superconductivity disappeared with Zn substitution for Cu in electron-doped system of ECCZO.