Deoxidation effects on Bi2Sr2CaCu2O8+y high temperature superconductor

✍ Scribed by Yoshihide Kimishima; Hideyoshi Kitsutaka; Jun Nakano

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 293 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(09)80426-2

✦ Synopsis

The lattice parameters a and c, superconducting onset temperature T c and volume fraction rate of superconductive phase f s were studied for the Bi2Sr2CaCu208+y-6. Where 6 is the oxygen deficiency in that system per chemical formula unit. All of the above quantities rapidly decreased with increasing of 6 in 0<6<0.1~0.2. While, in 0.2<6<1, the lattice parameters and T c were nearly constant, and the f s gradually decreased and became zero at 6=6 c~l. The reduction of positive holes and the decomposition of 2-2-1-2 phase were discussed based on the above experimental results. a and c were powder X-ray are given in .