Method of producing an SrTiO.sub.3 /YBa.sub.2 Cu.sub.3 O.sub.7 l

Details Method of producing an SrTiO.sub.3 /YBa.sub.2 Cu.sub.3 O.sub.7 l Method of producing an SrTiO.sub.3 /YBa.sub.2 Cu.sub.3 O.sub.7 l

1992-10-30

1995-07-04

King, Roy V.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

Superconductor next to layer containing nonsuperconducting...

505190, 505329, 505475, 505701, 505702, 505731, 427 62, 4274193, 428702, 428930, 20419224, H01L 3900, C23C 1434

Patent

active

054300142

ABSTRACT:
c-axis oriented YBa.sub.2 Cu.sub.3 O.sub.7 layers are grown with intervening SrTiO.sub.3 layers bridged over steps at which there is a transformation to a-axis crystal-oriented growth. The multilayer superconductor has YBa.sub.2 Cu.sub.3 O.sub.7 layers which are not thicker than 500 nm while the intervening layers of SrTiO.sub.3 have thicknesses of 20 to 30 nm.

REFERENCES:
Fink et al, "Hysteretic Josephson Junctions from YBa.sub.2 Cu.sub.3 O.sub.7-x /SrTiO.sub.3 /Ba.sub.1-x K.sub.x BiO.sub.3 trilayer films", Appl. Phys. Lett. 61(5) Aug. 1992 pp. 595-597.
Kingston et al, "Multilayer YBa.sub.2 Cu.sub.3 O.sub.x -SrTiO.sub.3 -YBa.sub.2 Cu.sub.3 O.sub.x Films for Insulating Crossovers", Appl. Phys. Lett. 56(2), Jan. 1990, pp. 189-191.
Mohammed E. Tidjani et al "Heteroepitaxial YBa.sub.2 Cu.sub.3 O.sub.7-x SrTiO.sub.3 . . . " Appl. Phys. Lett. 58 (7), 18 Feb. 1991, pp. 765-767.

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