Preparation of superconducting Tl-Ba-Ca-Cu-O thin films by Tl.su

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

505742, 427 62, 4271263, 4272481, 427343, B05D 512

Patent

active

051128004

ABSTRACT:
A process of making high temperature Tl-based superconductors is disclosed. The process includes the steps of reacting solid Ba-Ca-Cu-oxides with Tl.sub.2 O.sub.3 vapor. The process allows high quality Tl-based superconductors to be easily fabricated.

REFERENCES:
patent: 4755493 (1988-07-01), Takeuchi et al.
patent: 4870052 (1989-09-01), Engler et al.
Sugise et al., "Preparation of Tl.sub.2 Ba.sub.2 Ca.sub.2 Cu.sub.3 O.sub.y Thick Films from Ba-Ca-Cu-O Films", Jpn. J. Appl. Phys. 27(12), Dec. 1988, L2314-2316.
Lee et al., "Superconducting Tl-Ca-Ba-Cu-O Thin Films with Zero Resistance at Temperatures of Up to 120k," Appl. Phys. Lett. 53(4) Jul. 1988, pp. 329-321.
Lin et al., "Forming Superconducting Tl-Ca-Ba-Cu-O Thin Films by the Diffusion Method," Jpn. J. Appl. Phys. 28(1) Jan. 1989 l85-87.
Johs et al., "Preparation of High Tc Tl-Ba-Ca-Cu-O Thin Films by Pulsed Laser Evaporation and Tl.sub.2 O.sub.3 Vapor Processing", Appl. Phys. Lett. 54(18) May 1989, pp. 1810-1811.
Gopalakrishnan et al., "Synthesis and Properties of a 125k Superconductor in the Tl-Ca-Ba-Cu-O System", Appl. Phys. Lett. 53(5) Aug. 1988, pp. 414-416.
Qiu et al., "Formation of Tl-Ca-Ba-Cu-O Films by Diffusion of Tl into rt-Sputtered Ca-Ba-Cu-O", Appl. Phys. Lett. 53(12) Sep. 1988, pp. 1122-1124.
Wu et al., "Low-Temperature Preparation of High Tc Superconducting Thin Films", Appl. Phys. Lett. 52(9) Feb. 1988, pp. 754-756.
Liou et al., "Highly Oriented Tl.sub.2 Ba.sub.2 Ca.sub.2 Cu.sub.3 O.sub.10 Thin Films by Pulsed Laser Evaporation", Appl. Phys. Lett. 54(8) Feb. 1989, pp. 760-762.
Hasegawa, T., et al., High T. Superconductivity of (La.sub.1-x Sr.sub.x CuO.sub.4 -Effect of Substitution . . . Superconductivity, Japan Journal of Applied Physics, vol. 26, No. 4, Apr. 20, 1987, L337-L338.
Kishio, K., et al., Effect of Lanthanide Ion Substitutions for Lanthanum Sites on Superconductivity of (La.sub.1-x Sr.sub.x).sub.2 CuO.sub.4, Japanese Journal of Applied Physics, vol. 26, No. 4, Apr. 20, 1987, L391-L393.
Ohshima, S., et al., Superconducting and Structural Properties of the New Ba.sub.1-x Ln.sub.x CuO.sub.3-y Compound System (Ln=La, Ce, Pr, Nd, Sm, Eu, . . . and Yb), Japanese Journal of Applied Physics, vol. 26, No. 5, May 1987, L815-L817.
Tsurumi, S., et al., High T. Superconductivities of A.sub.2 Ba.sub.4 Cu.sub.6 O.sub.14+y Japanese Journal of Applied Physics, vol. 26, No. 5, May 1987, L856-L857.
Superconductivity News, vol. 1, No. 2, Aug. 1987, pp. 1, 2, and 6-8.
Yang, K. N. et al., High Temperature Superconductivity in Rare-Earth (R)-Barium Copper Oxides (RBa.sub.2)Cu.sub.3 O.sub.9-.delta., Solid State Communications, vol. 63, No. 6, 1987, pp. 515-519.
Tarascon, J. M. et al., Oxygen and Rare-Earth Doping of the 90-K Superconducting Perovskite YBa.sub.2 Cu.sub.3 O.sub.7-x, Physical Review B, vol. 36, No. 1, 1987, 226-234.
Hor, P. H. et al., Superconductivity Above 90 K in the Square-Planar Compound System ABa.sub.2 Cu.sub.3 O.sub.6+x with A=Y, La, Nd, Sm, Eu, Gd, Ho, Er, and Lu, Physical Review Letters, vol. 58, No. 18, 1987, 1891-1894.
Khurana, A., Superconductivity Seen Above the Boiling Point of Nitrogen, Physics Today, Apr., 1987, 17-23.
Cava. R. J. et al., Bulk Superconductivity at 91 K in Single-Phase Oxygen-Deficient Perovskite Ba.sub.2 YCu.sub.3 O.sub.9-.delta., Physical Review Letters, vol. 58, No. 16, 1987, 1676-1679.
Nagashima, T., et al., Superconductivity in Tl.sub.1.5 SrCaCu.sub.2 O.sub.x, Japanese Journal of Applied Physics, vol. 27, No. 6, Jun., 1988, L1077-L1079.
Saito, Y., et al., High-T.sub.c Superconducting Properties in (Y.sub.1-x Tl.sub.x)Ba.sub.2 Cu.sub.3 O.sub.7-y, Y(Ba.sub.1-x K.sub.x).sub.2 Cu.sub.3 O.sub.7-y and YBa.sub.2 (Cu.sub.1-x Mg.sub.x).sub.3 O.sub.7-y, Physica 148B, 1987, 336-338.
Kondoh, S., et al., Superconductivity in Tl-Ba-Cu-O System, Solid State Communications, vol. 65, No. 11, 1988, 1329-1331.
Sera, M. et al., On the Structure of High-T.sub.c Oxide System Tl-Ba-Cu-O, Institute for Molecular Science, Myodaiji, Okazaki 444 Japan, 1988.
Ihara, H. et al., Possibility of Superconductivity at 65.degree. C. in Sr-Ba-Y-Cu-O System, Japanese Journal of Applied Physics, vol. 26, No. 8, Aug., 1987, L1413-L1415.
Ishida, T., Compositional Variation of High T.sub.c in Yb.sub.x Er.sub.1-x Ba.sub.2 Cu.sub.3 O.sub.6+y System, Japanese Journal of Applied Physics, vol. 26, No. 8, Aug., 1987, L1294-L1295.
Kijima, T., et al., Superconductivity in the Bi-Sr-La-Cu-O System, Japanese Journal of Applied Physics, vol. 27, No. 6, Jun., 1988, L1035-L1037.
Richert, B., et al., Atomic Substitution in YBa.sub.2 Cu.sub.3 O.sub.7 : Modification of the Electronic Structure, American Institute of Physics Conference Proceedings No. 165 (Thin Film Processing and Characterization of High-Temperature Superconductors), Nov. 6, 1987, 277-283.
Ferreira, J. M., et al., Long-Range Magnetic Ordering the High-T.sub.c Superconductors RBa.sub.2 Cu.sub.3 O.sub.7-.delta. (R=Nd, Sm, Gd, Dy and Er), Physical Review B, vol. 37, No. 4, Feb. 1, 1988, 2368-2371.
Shih, I., et al., Multilayer Deposition of Thallium Barium Calcium Copper Oxide Films, Applied Physics Letter 53(6), 1988, 523-525.
Ginley, D. S., et al., Sequential Electron Beam Evaporated Films of Tl.sub.2 CaBa.sub.2 Cu.sub.2 O.sub.y with Zero Resistance at 97 K, Applied Physics Letters, 53 (5), Aug. 1, 1988, 406-408.
Parkin, S. S. P., et al., Bulk Superconductivity at 125 K in Tl.sub.2 Ca.sub.2 Ba.sub.2 Cu.sub.3 O.sub.x, Physical Review, 1988, 2539-2542.
Sheng, Z. Z., et al., Superconductivity in the Rare-Earth-Free Tl-Ba-Cu-O System Above Liquid-Nitrogen Temperature, Nature, vol. 332, Mar. 3, 1988, 55-58.
Sheng, Z. Z., et al., Superconductivity at 90 K in the Tl-Ba-Cu-O System, Physical Review Letters, vol. 60, No. 10, Mar. 7, 1988, 937-940.
Sheng, Z. Z., et al., Bulk Superconductivity at 120 K in the Tl-Ca/Ba-Cu-O System, Nature, vol. 332, Mar. 10, 1988, 138-139.
Ihara, H. et al., A New High-T.sub.c TlBa.sub.2 Ca.sub.3 Cuh.sub.4 O.sub.11 Superconductor with T.sub.c >120 K, Nature, vol. 334 Aug. 11, 1988, 510-511.
Sheng, Z. Z., et al., Tl.sub.2 O.sub.3 Vapor Process of Making TI-Ba-Ca-Cu-O Superconductors, Appl. Phys. Lett. 53 (26), Dec. 26, 1988, 2686-2688.
Hazen, R. M., et al., 100-K Superconducting Phases in the Tl-Ca-Ba-Cu-O System, Physical Review Letters, vol. 60, No. 16, Apr. 18, 1988, 1657-1660.
Sheng, Z. Z., et al., New 120 K Tl-Ca-Ba-Cu-O Superconductor, Appl. Phys. Lett., vol. 52, No. 20, May 16, 1988, 1738-1740.
Hatta, S., et al., Pt-Coated Substrate Effect on Oxide Superconductive Films in Low-Temperature Processing, Appl. Phys. Lett. 53(2), Jul. 11, 1988, 148-150.
Oota, A., et al., Electrical, Magnetic and Superconducting Properties of High-T.sub.c Superconductor (Y, Sc)-(Ba, Sr)-Cu Oxide, Japanese Journal of Appl. Physics, vol. 26, No. 8, Aug., 1987, L1356-1358.
Iwazumi, T., et al., Identification of a Structure with Two Superconducting Phases in L-Ba-Cu-O System (L=La or Y), Japanese Journal of Applied Physics, vol. 26, No. 5, May, 1987, L621-L623.
Capone, II., D. W., et al., Super Critical Fields and High Superconducting Transition Temperatures of La.sub.1.85 Sr.sub.0.15 CuO.sub.4 and La.sub.1.85 Ba.sub.0.15 CuO.sub.4, Appl. Phys. Lett., 50 (9), Mar. 2, 1987, 543-544.
Johnson, D. W., et al., Fabrication of Ceramic Articles from High T.sub.c Superconducting Oxides, Materials Research Society, Symposium S Proceedings (High Temperature Superconductors), Apr. 1987, 193-195.
Garwin, L., Superconducting Conference Yields New Temperature Record, Nature, vol. 332, Mar. 10, 1988.
Suzuki, A., et al., Rare- Earth(RE)--Barium Solubility Behavior in Y(Ba.sub.z -RE.sub.x)Cu.sub.3 O.sub.7+.delta. and Sm(Ba.sub.z-x RE.sub.x)Cu.sub.3 O.sub.7+.delta., Japanese Journal of Applied Physics, vol. 27, No. 5, May, 1988, L792-L794.
Peters, P. N., et al., Observation of Enhanced Properties in Samples of Silver Oxide Doped YBa.sub.2 Cu.sub.3 O.sub.x, Appl. Phys. Lett., 52 (24), Jun. 13, 1988, 2066-2067.
S. Natarajan et al., Superconductivity Studies on (Y.sub.1-x Ln.sub.x)Ba.sub.2 Cu.sub.3 O.sub.7, Ln=La,Pr,Tb, Physica C, vol. 153-155, Feb. 1988, 926-927.
D. D. Sarma,

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

Preparation of superconducting Tl-Ba-Ca-Cu-O thin films by Tl.su does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of superconducting Tl-Ba-Ca-Cu-O thin films by Tl.su, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of superconducting Tl-Ba-Ca-Cu-O thin films by Tl.su will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2426155

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