Effect of Tl-sources on growth of Tl-Ba-Ca-Cu-O films by diffusion process

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

OSTI ID:5932998

Lin, R J; Kuo, D H; Wu, P T ^[1]

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1. Materials Research Lab., Industrial Technology Research Inst., Chutung, Hsinchu 31015 (TW)

This paper reports on superconducting Tl-Ba-Ca-Cu-O films on (100) MgO substrates reproducibly prepared by wrapping Ba{sub 1}Ca{sub 2}{sub 7}O{sub x} film and Tl-Ba-Ca-Cu-O bulk in Au foils, which are heated at 900{degrees} C for 3 min in flowing oxygen followed by furnace cooling. The Tl-Ba-Ca-Cu-O films grown from the Tl-Ba-Ca-Cu-O bulks with Tl content of 3.5-6.6 mol% are consisted of the mixing phase of Tl{sub 2}Ba{sub 2}Ca{sub 2}Cu{sub 3}O{sub x}, Tl{sub 2}Ba{sub 2}Ca{sub 1}Cu{sub 3}O{sub x} and Tl{sub 1}Ba{sub 2}Ca{sub 1}Cu{sub 3}O{sub x}. These films have similar transition temperature T{sub c} (R = O) = 110 K.

• OSTI ID: 5932998
• 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
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DIFFUSION
ELEMENTS
FABRICATION
FILMS
FOILS
GOLD
HEAT TREATMENTS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUBSTRATES
SUPERCONDUCTING FILMS
THALLIUM COMPOUNDS
THALLIUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE