Site assignment for copper nuclear-quadrupole-resonance lines in YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/

Journal Article · Mon Oct 31 23:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.9303· OSTI ID:6725906

Walstedt, R E; Warren, Jr, W W; Tycko, R; Bell, R F; Brennert, G F; Cava, R J; Schneemeyer, L; Waszczak, J

Data on the /sup 63/Cu nuclear-magnetic-resonance intensity in powdered ceramic samples of YBa/sub 2/Cu/sub 3/O/sub 7/ are analyzed to yield the relative and absolute intensities of the Cu(1) and Cu(2) sites, using similar data on /sup 63/Cu in Cu/sub 2/O as a reference standard. These data confirm the assignment of the 31.48 MHz nuclear-quadrupole-resonance line to the Cu(2) (planar) sites and the 22.05 MHz line to the Cu(1) (chain) sites mandated by recent experiments at other laboratories. Relaxation data for /sup 89/Y, also presented, may reflect antiferromagnetically correlated spin fluctuations in the planes.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6725906
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER 63
COPPER COMPOUNDS
COPPER ISOTOPES
COPPER OXIDES
ELECTRONIC STRUCTURE
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEAR QUADRUPOLE RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIOISOTOPES
RELAXATION
RESONANCE
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM 89
YTTRIUM COMPOUNDS
YTTRIUM ISOTOPES
YTTRIUM OXIDES