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.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 2 September 1988:
Vol. 241. no. 4870, pp. 1198 - 1200
DOI: 10.1126/science.241.4870.1198
Prev | Table of Contents | Next

Articles

Bulk Superconductivity at 122 K in T1(Ba,Ca)2Ca3Cu4O10.5+8 with Four Consecutive Copper Layers

P. HALDAR 1, K. CHEN 2, B. MAHESWARAN 2, A. ROIG-JANICKI 1, N. K. JAGGI 2, R. S. MARKIEWICZ 3, and B. C. GIESSEN 1

1 Department of Chemistry and Barnett Institute of Chemical Analysis and Materials Science, Northeastern University, Boston, MA 02115.
2 Department of Physics, Northeastern University, Boston, MA 02115.
3 Department of Physics and Banett Institute of Chemical Analysis and Materials Science, Northeastern University, Boston, MA 02115.

The observed increase of superconducting transition temperature (Tc) with the number of copper oxide planes continues in the four-[CuO2]-2 layer (single TI layer) oxide superconductor, which has been prepared with > 80% purity and was magnetically aligned for crystallographic identification. A master scaling curve is proposed, which ties together the Tc's of virtually all known Bi and Tl oxide superconductors, and shows that the Tl(Bi) layers play an essential role in the superconductivity. publication 350 of the Barnett Institute.

Submitted on July 22, 1988
Accepted on August 1, 1988


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Chemistry of High-Temperature Superconductors.
A. W. Sleight (1988)
Science 242, 1519-1527
   Abstract »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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