Radio frequency surface resistance of Tl-Ba-Ca-Cu-O films on metal and single-crystal substrates

Conference · Thu Jan 25 00:00:00 EST 1990 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:6552815

Arendt, P N; Reeves, G A; Elliott, N E; Cooke, D W; Gray, E R; Houlton, R J; Brown, D R ^[1]

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1. Los Alamos National Laboratory, Los Alamos, NM (USA)

Films of Tl-Ba-Ca-Cu were dc magnetron sputtered from a single multielement target. The films were deposited onto substrates of: (1) magnesium oxide, (2) a silver based alloy (Consil 995), (3) a nickel based alloy (Haynes 230), and (4) buffer layers of barium fluoride or copper oxide on Consil. To form superconducting phases, post-deposition anneals were made on these films using an alumina crucible with an over pressure of thallium and flowing oxygen. After annealing, the film phases were determined using x-ray diffraction. The film surface resistances (Rs) were measured at 22 GHz in a TE{sub 011} cavity.

• OSTI ID: 6552815
• Report Number(s): CONF-891092-; CODEN: APCPC
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (USA), Vol. 199:1; Conference: 3. annual topical conference on high Tc superconducting thin films: processing, characterization, and applications, Boston, MA (USA), 23-27 Oct 1989; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
ELECTRIC CONDUCTIVITY
CALCIUM OXIDES
COPPER OXIDES
SUPERCONDUCTING FILMS
SPUTTERING
THALLIUM OXIDES
ANNEALING
HIGH-TC SUPERCONDUCTORS
MAGNETRONS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
ELECTRICAL PROPERTIES
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FILMS
HEAT TREATMENTS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties