Highly oriented Bi-based thin films with zero resistance at 106 K

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5767267

Kula, W; Sobolewski, R; Gorecka, J; Lewardowski, S L ^[1]

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1. Instytut Fizki, Polska Akademia Nauk. Al. Lotnikow 32/46, PL-02668 Warszawa (PL)

This paper reports on fabrication and characterization of nearly single-phase superconducting Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} thin films. The films were dc magnetron sputtered from heavily Pb-doped (Pb/Bi molar ratios up to 1.25), sintered targets on unheated MgO, SrTiO{sub 3}, CaNdAlO{sub 4}, and SrLaAlO{sub 4} single crystals. For the films grown on the (100) oriented MgO substrate, less than 1 hour of annealing in air at 870{degrees} C was sufficient to obtain more than 90% of the 110-K-phase material, with highly c-axis oriented crystalline structure and zero resistivity at 106 K. The films fabricated on the other substrates also exhibited a narrow superconducting transition and were fully superconducting above 100 K, but they consisted of a mixed-phase material with a large percentage of the 80 K phase.

• OSTI ID: 5767267
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
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Cermets
& Refractories-- Superconducting Properties-- (1992-)
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CALCIUM COMPOUNDS
CALCIUM OXIDES
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COPPER COMPOUNDS
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ELECTRON TUBES
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FABRICATION
FILMS
LANTHANUM COMPOUNDS
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MAGNESIUM COMPOUNDS
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MAGNETRONS
MICROWAVE EQUIPMENT
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OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
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STRONTIUM OXIDES
SUBSTRATES
SUPERCONDUCTING FILMS
THERMODYNAMIC PROPERTIES
TITANIUM COMPOUNDS
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TRANSITION ELEMENT COMPOUNDS
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