Laser ablation method of preparing oxide superconducting films o

Details Laser ablation method of preparing oxide superconducting films o Laser ablation method of preparing oxide superconducting films o

1992-01-31

1993-09-28

King, Roy

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505730, 505732, 505704, 427 62, 427596, 427117, B05D 306, B05D 512

Patent

active

052486621

ABSTRACT:
In order to prepare an elongated oxide superconducting material which exhibits a high critical current density, a tape-type substrate (7) of silver, for example, formed by unidirectional solidification is prepared and an excimer laser beam (9) is applied to target (8) of an oxide superconductor to deposit atoms and/or molecules being scattered from the target (8) on the substrate (7), thereby forming an oxide superconducting film on the substrate (7).

REFERENCES:
R. E. Russo et al., "Metal Buffer layers and Y-Ba-Cu-O thin films on Pt and stainless steel using pulsed laser deposition," Journal of Applied Physics, vol. 68, No. 3, 1 Aug. 1990, New York US pp. 1354-1356.
E. Narumi et al., "Superconducting YBA.sub.2 Cu.sub.3 O.sub.6.8 films on metallic substrates using in situ laser deposition," Applied Physics Letters vol. 56, No. 26, 25 Jun. 1990, New York US pp. 2684-2686.
Hoshino et al, "Preparation of Superconducting B.sub.i -S.sub.r -Ca-Cu-O Printed Thick Films on MgO Substrate and Ag Metal Tape", Jpn. J. Appl. Phys. 27(7) Jul. 1988 pp. L1297-L1299.

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