An EXAFS study on Bi_2Sr_2Ca_(1-x)Pr _xCu_2O_(8-δ) single crystal using polarized synchrotron radiation

摘要

We have made polarization dependent Extended X-ray Absorption Fine Structure (EXAFS) measurements on a Bi_2Sr_2Ca _(1-x)Pr_xCu_2O_(8-δ) single crystal in the E//a, E//b and E//a45° orientations. The results on Cu-K edge and Pr LIII edge EXAFS have been discussed to explain the quenching of superconductivity due to the presence of Pr cation as it was known to destruct the superconductivity by disturbing the local environment around Ca.