Buffer layers for high-T[sub c] thin films on sapphire
Journal Article
·
· Journal of Superconductivity; (United States)
- Los Alamos National Lab., NM (United States)
- Neocera, Inc., College Park, MD (United States)
- David Sarnoff Research Center, Princeton, NJ (United States)
Buffer layers of various oxides including CeO[sub 2] and yttrium-stabilized zirconia (YSZ) have been deposited on R-plane sapphire. The orientation and crystallinity of the layers were optimized to promote epitaxial growth of YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] (YBCO) thin films. An ion beam channeling minimum yield of [approximately]3% was obtained in the CeO[sub 2] layer on sapphire, indicating excellent crystallinity of the buffer layer. Among the buffer materials used, CeO[sub 2] was found to be the best one for YBCO thin films on R-plane sapphire. High T[sub c] and J[sub c] were obtained in YBCO thin films on sapphire with buffer layers. Surface resistances of the YBCO films were approximately 4 m[Omega] at 77 K and 25 GHz. 19 refs., 10 figs.
- OSTI ID:
- 7275385
- Journal Information:
- Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 5:4; ISSN JOUSEH; ISSN 0896-1107
- Country of Publication:
- United States
- Language:
- English
Similar Records
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High critical current densities of YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} thin films on buffered technical substrates
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:64679
Orientation of YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]] films on unbuffered and CeO[sub 2]-buffered yttria-stabilized zirconia substrates
Journal Article
·
Sat Oct 15 00:00:00 EDT 1994
· Journal of Applied Physics; (United States)
·
OSTI ID:7229340
High critical current densities of YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} thin films on buffered technical substrates
Journal Article
·
Fri Jan 31 23:00:00 EST 1997
· Applied Physics Letters
·
OSTI ID:450200
Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHANNELING
COPPER COMPOUNDS
CORUNDUM
CRYSTAL GROWTH
CRYSTAL STRUCTURE
CUPRATES
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
FILMS
HIGH-TC SUPERCONDUCTORS
ION CHANNELING
JOSEPHSON EFFECT
MINERALS
ORIENTATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAPPHIRE
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHANNELING
COPPER COMPOUNDS
CORUNDUM
CRYSTAL GROWTH
CRYSTAL STRUCTURE
CUPRATES
DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EPITAXY
FILMS
HIGH-TC SUPERCONDUCTORS
ION CHANNELING
JOSEPHSON EFFECT
MINERALS
ORIENTATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAPPHIRE
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES