Evidence for intrinsic impurities in the high-temperature superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} from {sup 17}O nuclear magnetic resonance.
We have found that high quality crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} (Bi-2212) have intrinsic magnetic defects that depend on oxygen doping. Our {sup 17}O nuclear magnetic resonance spectra provide evidence that local moments form in the CuO{sub 2} 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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 1002229
- Report Number(s):
- ANL/MSD/JA-68840; TRN: US201102%%666
- Journal Information:
- Phys. Rev. B, Vol. 77, Issue Feb. 2008
- Country of Publication:
- United States
- Language:
- ENGLISH
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