Vortex confinement by columnar defects in YBa sub 2 Cu sub 3 O sub 7 crystals: Enhanced pinning at high fields and temperatures
Journal Article
·
· Physical Review Letters; (United States)
- IBM Thomas J. Watson Research Center, Yorktown Heights, New York (USA) Materials Science Division, Argonne National Laboratory, Argonne, Illinois (USA) Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (USA) Iowa State University, Ames, Iowa (USA). Ames Laboratory Iowa State University, Ames, Iowa (USA). Department of Physics
We report the realization of a microstructure which leads to very strong high-temperature flux pinning in YBa{sub 2}Cu{sub 3}O{sub 7} crystals. Aligned discontinuous columns of damaged material, about 50 A in diameter and more than 15 {mu}m long, are produced by 580-MeV Sn-ion irradiation. The enhancement of flux pinning is largest when the applied magnetic field is aligned with these tracks. At high temperatures and fields the pinning is much greater than that produced by random point defects, and causes a considerable enlargement of the irreversibility region in the {ital H}-{ital T} plane.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5329031
- Journal Information:
- Physical Review Letters; (United States), Vol. 67:5; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BARIUM OXIDES
PHYSICAL RADIATION EFFECTS
COPPER OXIDES
YTTRIUM OXIDES
CRITICAL CURRENT
CRYSTAL DEFECTS
HIGH-TC SUPERCONDUCTORS
HYSTERESIS
ION COLLISIONS
LOW TEMPERATURE
MAGNETIC FLUX
MEV RANGE 100-1000
MICROSTRUCTURE
TIN IONS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
COPPER COMPOUNDS
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
ENERGY RANGE
IONS
MEV RANGE
OXIDES
OXYGEN COMPOUNDS
RADIATION EFFECTS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360206* - Ceramics
Cermets
& Refractories- Radiation Effects
BARIUM OXIDES
PHYSICAL RADIATION EFFECTS
COPPER OXIDES
YTTRIUM OXIDES
CRITICAL CURRENT
CRYSTAL DEFECTS
HIGH-TC SUPERCONDUCTORS
HYSTERESIS
ION COLLISIONS
LOW TEMPERATURE
MAGNETIC FLUX
MEV RANGE 100-1000
MICROSTRUCTURE
TIN IONS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
COPPER COMPOUNDS
CRYSTAL STRUCTURE
CURRENTS
ELECTRIC CURRENTS
ENERGY RANGE
IONS
MEV RANGE
OXIDES
OXYGEN COMPOUNDS
RADIATION EFFECTS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360206* - Ceramics
Cermets
& Refractories- Radiation Effects