In-plane anisotropy of the interaction between vortex and twin boundary in YBa sub 2 Cu sub 3 O sub 7 single crystals
Journal Article
·
· Physical Review Letters; (USA)
- Department of Physics, University of California, Davis, California 95616 (USA)
- Chemistry and Materials Science Department, Condensed Matter and Analytical Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (USA)
We report the temperature dependence of the magnetization hysteresis loops of high-quality YBa{sub 2}Cu{sub 3}O{sub 7} single crystals, each with a single unique orientation of twin boundaries. We have observed magnetization anisotropy in the temperature range 6--77 K for various magnetic fields applied normal to the {ital c} axis and parallel (stronger pinning) or perpendicular (weaker pinning) to the twin-boundary orientation, thus causing an anisotropic critical current density {ital J}{sub {ital c}}. Magnetization-time-relaxation and Meissner-fraction measurements also support the above observation.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5637337
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:10; ISSN PRLTA; ISSN 0031-9007
- 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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COUPLING
CRITICAL CURRENT
CRYSTALS
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
HIGH-TC SUPERCONDUCTORS
HYSTERESIS
INFORMATION
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIC FLUX
MAGNETIZATION
MONOCRYSTALS
MORPHOLOGY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TWINNING
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COUPLING
CRITICAL CURRENT
CRYSTALS
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
HIGH-TC SUPERCONDUCTORS
HYSTERESIS
INFORMATION
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIC FLUX
MAGNETIZATION
MONOCRYSTALS
MORPHOLOGY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TWINNING
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES