Electrophoretic deposition of textured YBa sub 2 Cu sub 3 O sub 7 minus x films on silver substrates

Journal Article · Fri Dec 15 04:00:00 EST 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.343620· OSTI ID:7268753

Hein, M; Muller, G; Piel, H; Ponto, L ^[1]; Becks, M; Klein, U; Peiniger, M ^[2]

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1. Fachbereich Physik, Bergische Universitaet Wuppertal, D-5600 Wuppertal 1, West Germany (DE)
2. Interatom GmbH, D-5060 Bergisch-Gladbach 1, West Germany (DE)

We have deposited 10--20-{mu}m-thick YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} films by an electrophoretic process on silver substrates in a magnetic field of 8 T. X-ray diffraction patterns of these 2.4-cm-diameter samples show a high degree of {ital c}-axis texturing perpendicular to the surface. Their microwave surface resistance {ital R}{sub {ital s}} was measured at 21.5 GHz in the temperature range from 4.2 to 300 K. It was found to drop sharply at 92.4 K to reach 18{plus minus}3 m{Omega} at 77 K and less than 3 m{Omega} at 4.2 K. These first results exceed the values obtained from bulk samples and untextured thick films, and are lower than {ital R}{sub {ital s}} of pure copper at the same frequency and temperature. The electrophoretic deposition technique is applicable to large substrates of nonplanar geometry and is therefore suitable for applications of high-{ital T}{sub {ital c}} superconductors in the field of microwave technology.

• OSTI ID: 7268753
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 66:12; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTROPHORESIS
ELEMENTS
EXPERIMENTAL DATA
FABRICATION
FILMS
INFORMATION
LAYERS
LOW TEMPERATURE
METALS
MICROWAVE RADIATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SCATTERING
SILVER
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TEXTURE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES