Multilayer YBa sub 2 Cu sub 3 O sub x -SrTiO sub 3 -YBa sub 2 Cu sub 3 O sub x films for insulating crossovers

Journal Article · Mon Jan 08 04:00:00 EST 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103281· OSTI ID:7170201

Kingston, J J; Wellstood, F C; Lerch, P; Miklich, A H; Clarke, J ^[1]

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1. Department of Physics, University of California, Berkeley, CA (US) Center for Advanced Materials, Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720

We describe our procedure for fabricating YBa{sub 2}Cu{sub 3}O{sub {ital x}}-SrTiO{sub 3}-YBa{sub 2}Cu{sub 3}O{sub {ital x}} thin-film trilayer structures. Each film is grown {ital in} {ital situ} by excimer laser deposition onto a heated (100)MgO substrate. The geometrical configuration of each layer is defined by a metal mask; the vacuum chamber is opened between depositions to allow the targets and masks to be changed. The lower and upper YBa{sub 2}Cu{sub 3}O{sub {ital x}} films in the best trilayer structure had transition widths of 1 and 3 K (10--90%), respectively, and transition temperatures (zero resistance) of 87 K. The resistance between the YBa{sub 2}Cu{sub 3}O{sub {ital x}} films at 77 K was 10{sup 8} {Omega} for an overlapping area of 0.2 mm{sup 2}, corresponding to a SrTiO{sub 3} resistivity of 4{times}10{sup 9} {Omega} cm.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7170201
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:2; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXCIMER LASERS
EXPERIMENTAL DATA
FABRICATION
FILMS
GAS LASERS
INFORMATION
LASERS
LAYERS
LOW TEMPERATURE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MICROELECTRONICS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
THERMODYNAMIC PROPERTIES
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
USES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES