Epitaxial YBa sub 2 Cu sub 3 O sub x thin films on sapphire using a Y-stabilized ZrO sub 2 buffer layer

Journal Article · Mon Jul 08 00:00:00 EDT 1991 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.105972· OSTI ID:5691481

Schmidt, H; Hradil, K; Hoesler, W; Wersing, W ^[1]; Gieres, G; Seeboeck, R J ^[2]

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1. Siemens AG, Corporate Research and Development, 8000 Muenchen 83, Germany (DE)
2. Siemens AG, Corporate Research and Development, 8520 Erlangen, Germany (DE)

Epitaxial, {ital c}-oriented YBa{sub 2}Cu{sub 3}O{sub {ital x}} thin films were deposited by dc sputtering on (1{bar 1}02)-sapphire substrates with an intermediate buffer layer of Y-stabilized ZrO{sub 2} (YSZ), which was grown by rf magnetron sputtering. The epitaxy of the YSZ and the YBa{sub 2}Cu{sub 3}O{sub {ital x}} films was proved by Rutherford backscattering spectrometry combined with ion channeling. The YBa{sub 2}Cu{sub 3}O{sub {ital x}} films exhibited transition temperatures of 90 K and had critical current densities exceeding 1.2{times}10{sup 6} A/cm{sup 2} at 77 K in zero magnetic field.

• OSTI ID: 5691481
• Journal Information: Applied Physics Letters; (USA), Vol. 59:2; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
SPUTTERING
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
YTTRIUM OXIDES
CRITICAL CURRENT
QUATERNARY COMPOUNDS
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILMS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties