Synthesis and properties of the Y(Ba1−xSrx)2Cu3−0.15xMo0.15xO7−z superconductors

✍ Scribed by D.H. Chen; S.R. Sheen; M.J. Wang; C.C. Chi; F.Z. Chien; M.K. Wu; C.T. Chang

• Book ID: 103946549
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 352 KB
• Volume: 213
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(93)90456-z

✦ Synopsis

We have achieved the preparation of the Y(BaI_xSr~,)2Cu307 compounds with x ranging from 0 to 1 by substituting a small amount of Cu with Mo. It was observed that the superconducting transition temperature, T¢, first decreases linearly with Srcontent until x> 0.4, where a sharp drop in Tc occurs. The T c for the sample with x= 0.1 is about 40 K. X-ray structure analysis shows that a sharp drop in Tc at a critical concentration corresponds to the crystal change from orthorhombic to tetragonal.