Spin excitations and pairing gaps in the superconducting state of YBa sub 2 Cu sub 3 O sub 7 minus. delta
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 (USA)
We show that it is possible to give a quantitative account of the temperature dependence of the measurements of the Knight shift and the spin-lattice-relaxation times for planar copper and oxygen sites in the superconducting state of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} by assuming that the planar excitations form a strongly coupled antiferromagnetic Fermi liquid. We consider anisotropic singlet and triplet pairing states with an orbital momentum {ital l}{le}2 and report on gap parameters and antiferromagnetic enhancement factors that are consistent with experiment. We present as well our calculations for the chain sites, for which an additional relaxation mechanism appears required.
- OSTI ID:
- 6837361
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:10; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHALCOGENIDES
COPPER 63
COPPER 65
COPPER COMPOUNDS
COPPER ISOTOPES
COPPER OXIDES
DAYS LIVING RADIOISOTOPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KNIGHT SHIFT
LOW TEMPERATURE
MAGNETISM
MINUTES LIVING RADIOISOTOPES
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIOISOTOPES
RELAXATION
SPIN-LATTICE RELAXATION
SPIN-SPIN RELAXATION
STABLE ISOTOPES
STOICHIOMETRY
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM 91
YTTRIUM COMPOUNDS
YTTRIUM ISOTOPES
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHALCOGENIDES
COPPER 63
COPPER 65
COPPER COMPOUNDS
COPPER ISOTOPES
COPPER OXIDES
DAYS LIVING RADIOISOTOPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KNIGHT SHIFT
LOW TEMPERATURE
MAGNETISM
MINUTES LIVING RADIOISOTOPES
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIOISOTOPES
RELAXATION
SPIN-LATTICE RELAXATION
SPIN-SPIN RELAXATION
STABLE ISOTOPES
STOICHIOMETRY
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM 91
YTTRIUM COMPOUNDS
YTTRIUM ISOTOPES
YTTRIUM OXIDES