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Science 30 January 1987:
Vol. 235. no. 4788, pp. 567 - 569
DOI: 10.1126/science.235.4788.567
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Articles

Superconductivity at 52.5 K in the Lanthanum-Barium-Copper-Oxide System

C. W. CHU 1, P. H. HOR 2, R. L. MENG 2, L. GAO 2, and Z. J. HUANG 2

1 Department of Physics and Space Vacuum Epitaxy Center, University of Houston, Houston, TX 77004., Division of Materials Research, National Science Foundation, Washington, DC 20550.
2 Department of Physics and Space Vacuum Epitaxy Center, University of Houston, Houston, TX 77004.

A superconducting transition with an onset temperature of 52.5 K has been observed under hydrostatic pressure in compounds with nominal compositions given by (La0.9Ba0.1)2 CuO4-Y. Possible causes for the high-temperature superconductivity are discussed.

Submitted on December 30, 1986
Accepted on January 9, 1987


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Pressure Dependence of Superconductivity in Single-Phase K3C60.
G. SPARN, J. D. THOMPSON, S. -M. HUANG, R. B. KANER, F. DIEDERICH, R. L. WHETTEN, G. GRUNER, and K. HOLCZER (1991)
Science 252, 1829-1831
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The Discovery of a Class of High-Temperature Superconductors.
K. A. MULLER and J. G. BEDNORZ (1987)
Science 237, 1133-1139
   Abstract »    PDF »
Superconductivity in Alkaline Earth-Substituted La2CuO4-y.
J. G. BEDNORZ, K. A. MULLER, and M. TAKASHIGE (1987)
Science 236, 73-75
   Abstract »    PDF »
Superconductivity at 40 K in the Oxygen-Defect Perovskites La2-xSrxCuO4-y.
J. M. TARASCON, L. H. GREENE, W. R. MCKINNON, G. W. HULL, and T. H. GEBALLE (1987)
Science 235, 1373-1376
   Abstract »    PDF »
The Resonating Valence Bond State in La2CuO4 and Superconductivity.
P. W. ANDERSON (1987)
Science 235, 1196-1198
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