Local structure and Tc suppression in Bi2Sr2Ca1-xYx(Cu 1-yZny)2O8+δ superconductor at 1/8 doping

N. L. Saini, A. Lanzara, F. Natali, A. Bianconi, M. Akoshima, Y. Koike, H. Oyanagi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Local structural studies on the Bi2Sr2Ca1-xYx(Cu 1-yZny)2O8+δ superconductor have been carried out by Cu K-edge X-ray absorption spectroscopy. The Cu K-edge XANES spectra show a systematic evolution with the hole doping for y=0.0 while there is anomalous relaxation of the CuO2 plane in the underdoped regime for y=0.025. Our results suggest that the 1/8 doping is a special doping below which the local structure of the CuO2 plane shows strong sensitivity to extrinsic effects. The XANES features, associated with local structural distortions of the CuO2 plane are discussed.

Original languageEnglish
Pages (from-to)752-754
Number of pages3
JournalJournal of Synchrotron Radiation
Volume6
Issue number3
DOIs
Publication statusPublished - 1999 May 1

Keywords

  • 1/8 suppression
  • Local CuO lattice
  • Stripes

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

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