Evidence for intrinsic impurities in the high-temperature superconductor Bi2 Sr2 Ca Cu2 O8+δ from O17 nuclear magnetic resonance

Bo Chen*, Sutirtha Mukhopadhyay, W. P. Halperin, Prasenjit Guptasarma, D. G. Hinks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We have found that high quality crystals of Bi2 Sr2 Ca Cu2 O8+δ (Bi-2212) have intrinsic magnetic defects that depend on oxygen doping. Our O17 nuclear magnetic resonance spectra provide evidence that local moments form in the Cu O2 plane in both normal and superconducting states. We suggest that these magnetic impurities are related to the electronic disorder that scanning tunneling microscopy experiments identify with the oxygen dopant atoms.

Original languageEnglish (US)
Article number052508
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number5
DOIs
StatePublished - Feb 27 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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