Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Cu spin dynamics and superconducting precursor effects in planes above T/sub c/ in YBa/sub 2/Cu/sub 3/O/sub 6. 7/

Journal Article · · Phys. Rev. Lett.; (United States)
; ; ; ; ; ;

Spin dynamics at planar sites in oxygen-deficient YBa/sub 2/Cu/sub 3/O/sub 6+//sub x/ have been investigated by nuclear spin-lattice relaxation measurements using /sup 63,65/Cu nuclear quadrupole resonance and /sup 89/Y NMR. A sharp decrease of /sup 63/Cu nuclear relaxation below 100 K in YBa/sub 2/Cu/sub 3/O/sub 6.7/ suggests the possible onset of spin pairing in individual planes well above the transition to three-dimensional bulk superconductivity. Comparison of the relaxation rates for the 60-K superconductor YBa/sub 2/Cu/sub 3/O/sub 6.7/ with those of YBa/sub 2/Cu/sub 3/O/sub 7.0/ in the range 100--300 K shows that the planar Cu(2) spin dynamics are strongly affected by changes in carrier concentration.

Research Organization:
ATandT Bell Laboratories, Murray Hill, New Jersey 07974
OSTI ID:
6359877
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:10; ISSN PRLTA
Country of Publication:
United States
Language:
English

Similar Records

Absence of metallic character at certain Cu sites in YBa/sub 2/Cu/sub 3/O/sub 6. 7/
Journal Article · Sat Dec 31 23:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States) · OSTI ID:6552012
NMR evidence for localized spins on Cu(2) sites from Cu NMR in YBa/sub 2/Cu/sub 3/O/sub 7/ and YBa/sub 2/Cu/sub 3/O/sub 6. 75/ single crystals
Journal Article · Fri Mar 31 23:00:00 EST 1989 · Phys. Rev. B: Condens. Matter; (United States) · OSTI ID:6407534
Anisotropic /sup 63/Cu nuclear relaxation in magnetically oriented powdered samples of YBa/sub 2/Cu/sub 3/O/sub 7/
Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States) · OSTI ID:5947571

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANGULAR MOMENTUM
BARIUM COMPOUNDS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHALCOGENIDES
COPPER 63
COPPER 67
COPPER COMPOUNDS
COPPER ISOTOPES
COPPER OXIDES
DAYS LIVING RADIOISOTOPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LOW TEMPERATURE
MAGNETIC RESONANCE
MEDIUM TEMPERATURE
MULTIPOLES
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUADRUPOLES
RADIOISOTOPES
RELAXATION
RESONANCE
SECONDS LIVING RADIOISOTOPES
SPIN
STABLE ISOTOPES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE
YTTRIUM 89
YTTRIUM COMPOUNDS
YTTRIUM ISOTOPES