Electron-Mediated O{number_sign}^{17-C{number_sign}63u Spin-Spin Coupling and Electron Spin Correlations in YBa{sub 2}Cu{sub 3}O{sub 7}}

Journal Article · Mon Nov 01 00:00:00 EST 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.3924· OSTI ID:698942

Yu, S; Gorny, K R; Pennington, C H ^[1]; Hults, W L; Smith, J L ^[2]

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1. Department of Physics, The Ohio State University, 174 W. 18th Avenue, Columbus, Ohio 43210 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We report spin-echo double resonance NMR measurements of {sup 17}O- {sup 63} Cu indirect (electron-mediated) nuclear spin-spin coupling between Cu and O atoms in the CuO{sub 2} planes of YBa{sub 2}Cu {sub 3}O{sub 7} . The magnitude of the measured coupling is anomalously large, to the extent that it is inconsistent with the antiferromagnetic correlations that are invoked to explain the contrasting T{sub 1} behaviors of {sup 63}Cu and {sup 17}O . {copyright} {ital 1999} {ital The American Physical Society }

• OSTI ID: 698942
• Journal Information: Physical Review Letters, Vol. 83, Issue 19; Other Information: PBD: Nov 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
YTTRIUM COMPOUNDS
BARIUM COMPOUNDS
COPPER COMPOUNDS
OXYGEN COMPOUNDS
NUCLEAR MAGNETIC RESONANCE
SPIN-SPIN RELAXATION
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
OXYGEN 17
COPPER 63
NMR SPECTRA