Local structural and electronic changes accompanying photodoping in YBa2Cu3O6+x

T. A. Tyson, J. F. Federici, D. Chew, A. R. Bishop, L. Furenlid, W. Savin, W. Wilber

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Polarized X-ray absorption measurements reveal that photodoping of oxygen deficient YBa2Cu3O6+x (YBCO) produces a local axial distortion of the CuOx chains. The broad normal state axial Cu(1)-O(4) bond distribution becomes two well-defined peaks in the photodoped state and suggest local ordering. XANES measurements reveal a transfer of hole density into the CuO2 planes. These results support a common structure-related transport enhancement mechanism in chemically doped and photodoped high temperature superconductor systems.

Original languageEnglish (US)
Pages (from-to)163-170
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume292
Issue number3-4
DOIs
StatePublished - Dec 20 1997
Externally publishedYes

Keywords

  • Cu-O chains
  • Cu-O planes
  • Structure of photodoping
  • XAFS

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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