Process for preparing a-axis oriented superconducting oxide thin

Details Process for preparing a-axis oriented superconducting oxide thin Process for preparing a-axis oriented superconducting oxide thin

1991-05-30

1993-08-31

King, Roy

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505731, 505732, 505730, 427 62, 427596, 4274193, 4274192, 4271263, 427314, 20419224, B05D 512

Patent

active

052409040

ABSTRACT:
Improvement in a process for preparing a-axis oriented thin film of high-Tc oxide superconducting material by laser evaporation method. Before the a-axis oriented thin film of oxide superconducting material is deposited by laser evaporation method, an under-layer having an a-axis orientation of the crystal of the same oxide superconducting material is deposited on a substrate previously by sputtering.

REFERENCES:
Eom et al, "Epitaxial and Smooth Films of a-Axis YBa.sub.2 Cu.sub.3 O.sub.7 " Science, vol. 249, Sep. 1990 pp. 1549-1552.
Gander et al, "Optimization of Yttrium Barium Copper Oxide Surfaces for Tunnel Junctions", IEEE Trans. Magn., 25(2) 1989, pp. 803-805.

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