Direct laser writing of superconducting patterns of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-//sub delta/
Direct argon ion laser writing of 40-..mu..m-wide and 3-..mu..m-thick superconducting lines of Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-//sub delta/ on magnesium oxide (MgO) substrate is reported. A 514.5 nm laser beam of 300 mW was focused onto a thin sprayed film of the nitrate precursors (Y:Ba:Cu = 1:2:3) and scanned over it. The laser beam converted oxides along the irradiation path. The film was then ''developed'' by rinsing it in ethanol, which removed the unirradiated areas, but left the irradiated areas intact. This was followed by the standard oven annealing procedure in flowing oxygen. The resistivity of the laser-written lines as a function of temperature showed an onset and completion of the superconducting transition at 82 and 69 K, respectively. The corresponding values of the unpatterned, blanket film were 82 and 77 K, respectively.
- Research Organization:
- IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598
- OSTI ID:
- 5374136
- Journal Information:
- Appl. Phys. Lett.; (United States), Vol. 52:8
- Country of Publication:
- United States
- Language:
- English
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
ELECTRIC CONDUCTIVITY
SURFACE TREATMENTS
TRANSITION TEMPERATURE
COPPER OXIDES
SUPERCONDUCTING FILMS
YTTRIUM OXIDES
ANNEALING
ETHANOL
EXPERIMENTAL DATA
FABRICATION
LASER RADIATION
MAGNESIUM OXIDES
PEROVSKITES
SURFACE COATING
ALCOHOLS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DATA
DEPOSITION
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
FILMS
HEAT TREATMENTS
HYDROXY COMPOUNDS
INFORMATION
MAGNESIUM COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity