Microstructural, transport, and rf properties of multilayer-deposited YBCO films

Conference · Fri Mar 01 00:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5720900

Madhavrao, L; Track, E K; Drake, R E; Patt, R; Hohenwarter, G K.G.; Radparvar, M ^[1]

---

1. Hypres, Inc., Elmsford, NY (United States)

This paper reports on thin films of Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}x} (YBCO) fabricated by sequential multilayer rf magnetron sputter-deposition from Y{sub 2}O{sub 3}, BaCO{sub 3}, and CuO targets, and post- annealing in oxygen. This approach readily allows precise control of the film stoichiometry and is proven to be promising for applications that require deposition over large areas. Films on different substrates including SrTiO{sub 3}, LaAlO{sub 3}, MgO and sapphire are found to be c-axis oriented for film thicknesses between 300 {Angstrom} and 10,000 {Angstrom}. Transport current densities in the range of 10{sup 6} A/cm{sup 2} are obtained on SrTiO{sub 3} and LaAlO{sub 3} substrates, and in the range of 10{sup 5} A/cm{sup 2} on MgO and sapphire. Transition temperatures of 89 K (resistive) and 87 K (inductive) are obtained repeatably with LaAlO{sub 3} substrates.

• OSTI ID: 5720900
• Report Number(s): CONF-900944-; CODEN: IEMGA
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 27:2; Conference: 1990 applied superconductivity conference, Snowmass, CO (United States), 24-28 Sep 1990; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
FABRICATION
PHYSICAL PROPERTIES
TRANSITION TEMPERATURE
COPPER OXIDES
YTTRIUM OXIDES
ALUMINIUM OXIDES
CARBON OXIDES
CURRENT DENSITY
DEPOSITION
LANTHANUM OXIDES
MAGNESIUM OXIDES
SAPPHIRE
SILVER
SPUTTERING
STOICHIOMETRY
STRONTIUM OXIDES
SUBSTRATES
THIN FILMS
TITANIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CARBON COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CORUNDUM
ELEMENTS
FILMS
LANTHANUM COMPOUNDS
MAGNESIUM COMPOUNDS
METALS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties