Josephson junctions made with thin superconductive layers

Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

357 4, 357 5, 357 65, 307306, H01B 1200, H01L 3912, H01L 2712

Patent

active

051068230

ABSTRACT:
A device made with thin layers comprises at least two layers of materials having different electrical characteristics. At least one of the layers is superconductive. The superconductive layer comprises a rare earth (or yttrium) which is chosen so as to confer superconductive characteristics. The other layer has a constitution which differs from that of the superconductive layer, solely by the fact that the rare earth is different and confers different electrical properties.

REFERENCES:
patent: 4869598 (1989-09-01), McDonald
patent: 4905319 (1990-02-01), Schroder et al.
Koch et al., "Thin Films and SQUIDS Made from YBa.sub.2 Cu.sub.3 O.sub.y ", MRS Conf. (Apr. 1987), pp. 81-84.
Arrington et al., "Superconducting Weak Links formed by Ion Implantation", Appl. Phys. Lett., vol. 26, No. 4, Feb. 15, 1975, pp. 204-206.
Wada et al., "Substitution Effect of Sr for Ba of High T.sub.c S/C YBa.sub.2 Cu.sub.3 O.sub.7-Y Ceramics", Jap. J. Appl. Phys., vol. 26, No. 5, May 1987, pp. L706-L708.
Maekawa et al., "Effects of Magnetic and Non-Magnetic Impurities on Anisotropic Singlet Superconductors", Jap. J. Appl. Phys., vol. 26 (5), May 1987, pp. L771-L773.
Hikita et al., "Oxygen Deficit Perovskite Structure with S/C T.sub.c Above 50K in La-Ba-Cu-O Compound System", Jap. J. Appl. Phys., vol. 26 (5), May 1987, pp. L615-L616.
Matisoo, J., "Josephson-Type S/C Tunnel Junct. S Applications", IEEE Trans. on Mag., vol. Mag-5, No. 4 (Dec. 1969), pp. 848, 851, 871, 872.
Clark et al., "Feasibility of Hybrid Josephson FET", J. Appl. Phys., vol. 51, No. 5 (May 1980), pp. 2736-2743.
Tsai et al., "All-Ceramics Josephson Junctions Operative up to 90.degree. K.", J. Appl. Phys., vol. 6, No. 5 (May 1987), pp. L701-L703.
Ohshima et al., "S/C and Structural Properties of the New Ba.sub.1-X Ln.sub.x CuO.sub.3-y Cpd. System", Jap. J. Appl. Phys., vol. 26, No. 5 (May 1987), pp. L815-L817.
"High Temp S/C in Rare Earth (R)-Ba.sub.2 Cu.sub.3 O.sub.9-.delta. ", Yang et al., Solid State Comm., vol. 63, No. 6, pp. 515-519 (Aug. 1987).
Zhao et al., "Effect of Sc on the S/C of Ba-Y-Cu Oxides", Solid State Comm., vol. 63, No. 6, pp. 409-410 (Aug. 1987).
Moreland et al., "Josephson Effect Above 77.degree. K. in a YBaCuO Break Junction", Appl. Phys. Lett., vol. 51, No. 7, pp. 540-541 (Aug. 1987).
Worthington et al., "Anisotropic Nature of High Tc S/C in Single Crystal Y.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-x ", Phys. Rev. Lett., vol. 59, No. 10, pp. 1160-1163 (Jul. 9, 1987).
Camps et al., "Microstructure and Critical Current of S/C YBa.sub.2 Cu.sub.3 O.sub.7-x ", Lett. to Nature, vol. 329 (17), (Sep. 1987), pp. 229-232.
Inam et al., "As-Deposited High T.sub.c and J.sub.c S/C Thin Films Made at Low Temperatures", Appl. Phys. Lett., vol. 53, No. 10 (May 9, 1988), pp. 908-910.
Takada et al., "Tunnel Junctions Using Oxide S/C Thin Films Epitaxially Grown on SrTiO.sub.3 ", Appl. Phys. Lett., vol. 53, No. 26 (Dec. 26, 1988), pp. 2689-2691.
Yoshiara et al., "Superconductivity of Screen-Printed YBa.sub.2 Cu.sub.3 O.sub.y Thick Films on Y.sub.2 BaCuO.sub.5 Substrates", Jap. J. Appl. Phys., vol. 27, No. 8, Aug. 1988.
Poppe et al., "Epitaxial Multilayers of YBa.sub.2 Cu.sub.3 O.sub.7 and PrBa.sub.2 Cu.sub.3 O.sub.7 as a Possible Basis for Superconducting Electronic Devices", Solid State Comm., vol. 71, No. 7, 1989, pp. 569-572.

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 junctions made with thin superconductive layers 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 junctions made with thin superconductive layers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Josephson junctions made with thin superconductive layers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1586148

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