English

Multiple Scattering Analysis of Cu-K EXAFS in Bi_2Sr_1.5Ca_1.5Cu_2O_8+d

supr-con 2008-02-03 v1 Superconductivity

Abstract

We have analyzed the Cu K-EXAFS of Bi_2Sr_1.5Ca_1.5Cu_2O_8+d using a full multiple scattering analysis in a cluster with diameter d = 7.6 AA. The numerous quasi one-dimensional structural elements give rise to significant multiple scattering contributions in the EXAFS. We confirm the Sr/Ca ratio of the sample is 1:1, and one Ca atom is located close to a nominal Sr-site. At 40 K the dimpling angle in the $\rm CuO_2-plane is found to be < 3.5 degrees.

Keywords

Cite

@article{arxiv.supr-con/9412002,
  title  = {Multiple Scattering Analysis of Cu-K EXAFS in Bi_2Sr_1.5Ca_1.5Cu_2O_8+d},
  author = {J. R"ohler and R. Cr"usemann},
  journal= {arXiv preprint arXiv:supr-con/9412002},
  year   = {2008}
}

Comments

9 pages plus 2 compressed & uuencoded ps figures, LATEX 2.09