Josephson junction in a wiring pattern of a superconductor oxide

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Tunneling through region of reduced conductivity

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

257 34, 505191, H01L 3922

Patent

active

055347150

ABSTRACT:
A Josephson junction is disclosed which includes a substrate of a single crystal having a substantially flat surface, a wiring pattern of an oxide superconductor formed on the flat surface of the substrate, and an altered region formed having a width of 300 nm or less and formed in the wiring pattern to intersect the wiring pattern, the crystal orientations of the wiring pattern on both sides of the altered region being equal to each other. The Josephson junction may be prepared by a process including the steps of: (a) coating a surface of a substrate of a single crystal with a normal metal to form a protecting layer over the surface of the substrate; (b) irradiating a predetermined portion of the protecting layer with a focused ion beam so that an irradiated portion is formed in the substrate; (c) removing the protecting layer from the substrate; and (d) forming a wiring pattern of an oxide superconductor on the surface of the substrate from which the protecting layer has been removed such that the wiring pattern crosses the irradiated portion of the substrate, thereby forming an altered portion in the wiring pattern at a position above the irradiated portion.

REFERENCES:
patent: 5077266 (1991-12-01), Takagi et al.
patent: 5179426 (1993-01-01), Iwamatsu
Physical Review letters; vol. 64, No. 2, 8 Jan. 1990, pp. 228-230.
Appl. Phys. Lett. 58(5) 4 Feb. 1991, pp. 543-545.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Josephson junction in a wiring pattern of a superconductor oxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Josephson junction in a wiring pattern of a superconductor oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Josephson junction in a wiring pattern of a superconductor oxide will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1868904

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.