Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 17 December 1993:
Vol. 262. no. 5141, pp. 1850 - 1852
DOI: 10.1126/science.262.5141.1850
Prev | Table of Contents | Next

Articles

Evidence Suggesting Superconductivity at 250 K in a Sequentially Deposited Cuprate Film

Michel Laguës 1, Xiao Ming Xie 1, Hassan Tebbji 1, Xiang Zhen Xu 1, Vincent Mairet 1, Christophe Hatterer 1, Cristian F. Beuran 1, and Catherine Deville-Cavellin 2

1 Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris, CNRS UPR5 10 rue Vauquelin, 75231 Paris, France
2 Laboratoire d'Electronique, Université Paris 12, Avenue de Gaulle, 94010 Créteil cedex, France

An artificial cuprate compound belonging to the BiSrCaCuO family with eight adjacent sequetially imposed layer epitaxy. This compound undergoes a five order of magnitude resistivity drop with an onset near 280 kelvin and an offset at 250 kelvin. It exhibits a diamagnetic variation of susceptibility and magnetization below 290 kelvin. Additional observed features, such as strongly nonlinear conductivity, suggests superconductivity as a plausible explanation of the properties of this compound.

Submitted on November 18, 1993
Accepted on November 22, 1993


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Superconductivity in SrCuO2-BaCuO2 Superlattices: Formation of Artificially Layered Superconducting Materials.
D. P. Norton, B. C. Chakoumakos, J. D. Budai, D. H. Lowndes, B. C. Sales, J. R. Thompson, and D. K. Christen (1994)
Science 265, 2074-2077
   Abstract »    PDF »
Electrodeposited Defect Chemistry Superlattices.
J. A. Switzer, C.-J. Hung, B. E. Breyfogle, M. G. Shumsky, R. Van Leeuwen, and T. D. Golden (1994)
Science 264, 1573-1576
   Abstract »    PDF »
A Big Step for Superconductivity?.
R. Pool (1993)
Science 262, 1816-1817
   PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)