Nuclear quadrupole resonance and nuclear magnetic resonance of copper in the high-T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/

Journal Article · Thu Oct 01 00:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.5690· OSTI ID:6140644

Furo, I; Janossy, A; Mihaly, L; Banki, P; Pocsik, I; Bakonyi, I; Heinmaa, I; Joon, E; Lippmaa, E

The /sup 65/Cu and /sup 63/Cu zero-field nuclear quadrupole resonance (NQR), nuclear magnetic resonance (NMR) at 4.7 and 8.5 T and the spin-lattice relaxation time T/sub 1/ at 8.5 T are measured in the superconducting oxide YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ between 80 and 300 K. No sign of magnetic order or localized moments are found. The NQR linewidth is strongly dependent on the oxygen content. We assign the /sup 63/Cu NQR line at 22 MHz to the Cu site with oxygen coordination 5. T/sub 1/ is dominated by the quadrupolar relaxation due to spin-phonon coupling.

• Research Organization: Central Research Institute for Physics, H-1525 Budapest, POB 49, Hungary
• OSTI ID: 6140644
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 36:10
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
SPIN-LATTICE RELAXATION
COPPER 63
NUCLEAR QUADRUPOLE RESONANCE
COPPER 65
COPPER OXIDES
YTTRIUM OXIDES
LINE WIDTHS
LOW TEMPERATURE
MEDIUM TEMPERATURE
SUPERCONDUCTORS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER ISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RELAXATION
RESONANCE
STABLE ISOTOPES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity