Highly-textured thallium-barium-calcium-copper-oxide polycrystalline superconducting films on silver substrates

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:7123034

Arendt, P; Elliott, N; Cooke, D W; Dye, R; Gray, E; Hubbard, K; Martin, J; Reeves, G; Brown, D; Klapetzky, A

Thick (8 to 10 {mu}m) Ba--Ca--Cu--O films have been rf magnetron sputtered onto Ag alloy (Consil 995) substrates. The films were given a post-deposition anneal in an over pressure of Tl in order to form the superconducting phases. Annealing protocols were done which result in predominantly the 1212 and 2212 phases. The substrate orientation was varied to determine its effect on film orientation. Material properties of the films were characterized by x-ray diffraction (XRD), ion beam backscattering spectroscopy, energy dispersive x-ray analysis (EDAX), and scanning electron microscopy (SEM). Electrical characterization of the films was done using dynamic impedance (DI) at 10 kHz and rf surface resistance (R{sub s}) at 18 GHz in a TE{sub 011} fundamental mode cavity. 19 refs., 7 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOD
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7123034
• Report Number(s): LA-UR-90-1663; CONF-9005213--1; ON: DE90011972; CNN: W31RPD-9-P4047
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANNEALING
BACKSCATTERING
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
FILMS
HEAT TREATMENTS
HIGH-TC SUPERCONDUCTORS
METALS
ORIENTATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SILVER
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THALLIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS