SUPERCONDUCTIVITY ABOVE 100 K IN COMPOUNDS CONTAINING HG
|Title||SUPERCONDUCTIVITY ABOVE 100 K IN COMPOUNDS CONTAINING HG|
|Publication Type||Conference Proceedings|
|Year of Publication||1995|
|Authors||Osofsky, M. S., Lechter W. L., Toth L. E., Skelton E. F., Drews A. R., Kim C. C., Das B., Qadri S. B., Webb A. W., and Soulen R. J.|
|Conference Name||University-of-Miami Workshop on High-Temperature Superconductivity - Physical Properties and Mechanisms|
|Conference Location||Coral Gables, Fl|
The results of studies of new Hg based cuprate superconductors are reported. Several members of a new family of (Hg,T1)(Ba,Sr)Can-2CunOx high temperature superconductors have been synthesized. These compounds, which are analogs to the Hg-Ba-Ca- and T1-Ba-Ca- layered cuprates, are multi-phased and have superconducting transition temperatures above 100 K. incorporation of Hg appears to stabilize several of the T1-compounds, including a double layer. T1/Sr system, in a manner similar to the role that Pb plays in the T1/Sr- and Bi/Sr-systems. It has been suggested that recent reports of resistive T-c's above 200 K in Hg based samples are due to the presence of free Hg. Magnetization measurements of such a sample confirm this hypothesis.