Ion beam amorphization of YBa/sub 2/Cu/sub 3/O/sub x/
Journal Article
·
· Appl. Phys. Lett.; (United States)
The microstructure of ion-implanted thin films of the superconductor YBa/sub 2/Cu/sub 3/O/sub x/ has been investigated by transmission electron microscopy. The superconducting properties of the films were dominated by large pancake-shaped grains of YBa/sub 2/Cu/sub 3/O/sub x/ with their c axis perpendicular to the substrate. Other grains of YBa/sub 2/Cu/sub 3/O/sub x/ whose c axis was parallel to the substrate formed spherulites. Irradiation with 500 keV O/sup +/ ions caused amorphous zones to appear on the grain boundaries between the pancake grains, which initially were free of amorphous or second phases. At higher dose a continuous amorphous layer 150 A thick was formed. However, the interior of the grains showed no irradiation-induced microstructural features until they became amorphous at a dose of 3 x 10/sup 14/ ions/cm/sup 2/. The appearance of the amorphous layer on the grain boundaries at low doses accounts for the reduction in the superconducting transition temperature observed in these films.
- Research Organization:
- IBM, T.J. Watson Research Center, Yorktown Heights, New York 10598
- OSTI ID:
- 6093449
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:18; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Mon Oct 03 00:00:00 EDT 1988
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OSTI ID:6932859
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Sun Sep 01 00:00:00 EDT 1991
· Journal of Materials Research; (United States)
·
OSTI ID:5236984
Improvement in the properties of high T sub c films fabricated in situ by laser ablation of YBa sub 2 Cu sub 3 O sub 7 -Ag targets
Journal Article
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Sun Jan 12 23:00:00 EST 1992
· Applied Physics Letters; (United States)
·
OSTI ID:5526984
Related Subjects
36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
AMORPHOUS STATE
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FILMS
GRAIN BOUNDARIES
INFORMATION
ION COLLISIONS
ION IMPLANTATION
MICROSCOPY
MICROSTRUCTURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
AMORPHOUS STATE
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FILMS
GRAIN BOUNDARIES
INFORMATION
ION COLLISIONS
ION IMPLANTATION
MICROSCOPY
MICROSTRUCTURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES