High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S

Details High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S

1990-03-26

1991-12-17

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

252521, 423604, 423624, 423635, 501123, 505783, C01F 1102, C01G 302, C01G 1500, H01L 3912

Patent

active

050735365

ABSTRACT:
A new high temperature superconductor with transition temperature above 120 K. is disclosed. The superconductor in a preferrred embodiment comprises TlRBaCuO wherein R is chosen from Group 2A elements excluding Ba. In another preferred embodiment, the superconductor comprises TlSrCuO. Processes for making high temperature superconductors are also disclosed.

REFERENCES:
patent: 4755593 (1988-07-01), Takeuchi et al.
patent: 4870052 (1989-09-01), Engler et al.
patent: 4880773 (1989-11-01), Itozaki
patent: 4962083 (1990-10-01), Hermann et al.
Saito "High-Tc superconducting properties in (Y.sub.1-x Tl.sub.x)Ba.sub.2 Cu.sub.2 O.sub.x " Physica 148B 1987, pp. 336-338.
Richert "Atomic Substitution in YBa.sub.2 Cu.sub.3 O.sub.7.sup.2 Modification . . . " American Vac. Soc. Series 3, Anaheim, CA, Nov. 6, 1987, pp. 377-283.
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.4-8, 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.2-x Ln.sub.x CuO.sub.3-x 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.
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.
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, 19988, 406-408.
Qiu, C. X., et al., Formation of Tl-Ca-Ba-Cu-O Films by Diffusion of Tl into rf-sputtered Ca-Ba-Cu-O, Applied Physics Letters, 53(12), Sep. 19, 1988, 1122-1124.
Gopalakrishnan, I. K., et al., Synthesis and Properties of a 125 K Superconductor in the Tl-Ca-Ba-Cu-O System, Applied Physics Letters, 53(5), Aug. 1, 1988, 414-416.
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 Cu.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 Tl-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.
Lin, R. J., et al., Forming Superconducting Tl-Ca-Ba-Cu-O Thin Films by the Diffusion Method, Japanese Journal of Applied Physics, vol. 28, No. 1, Jan. 1989, L85-L87.
Thompson, B. J., et al., Preparation of High T.sub.c 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 1, 1989, 1810-1811.
Sugise, R., 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, Japanese Journal of Applied Physics, vol. 27, No. 12, Dec. 1988, L2314-L2316.
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.
Lee, W. Y., et al., Superconducting Tl-Ca-Ba-Cu-O Thin Films with Zero Resistance at Temperatures of up to 120 K, Appl. Phys. Lett 53(4), Jul. 25, 1988, 329-331.
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-L1358.
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 -.sub.x 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.
Nagashima, T., et al., Improving Superconducting Characteristics of Tl-Sr-Ca-Cu-O by Doping with Pb and/or Rare-Earth Elements, Japanese Journal of Applied Physics, vol. 28, No. 6, Jun. 1989, L930-L933.
Vijayaraghavan, R., et al., Investigations of Novel Cuprates of the TlCa.sub.1-x Ln.sub.x Sr.sub.2 Cu.sub.2 O.sub.7-.delta. (Ln=rare earth) Series Showing Electron- or Hole-superconductivity Depending on the Composition, Superconducting Science and Technology, vol. 2(3), Sep. 1989, 195-201.
Inoue, O., et al., Superconductivity in a Tl-Sr-Y-Cu-O System,

Affiliated with

Also associated with

Rating

High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature superconductors comprising Tl--Ca--Ba--O, Tl--S will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-835608