𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effect of oxygen concentration on superconducting properties of Ba2YCu3O7−x

✍ Scribed by Y. Ishizawa; O. Fukunaga; H. Nozaki; T. Tanaka; A. Ono

Publisher
Elsevier Science
Year
1987
Weight
167 KB
Volume
148
Category
Article
ISSN
0378-4363

No coin nor oath required. For personal study only.

✦ Synopsis

Effect of oxygen concentration on superconducting properties of Ba2YCu30 7 x has been investigated by means of electrical resistivity and magnetization measurements using oxygen-controlled samples. Superconducting transition temperatures decrease linearly with decreasing oxygen concentration below 7 -x = 6.75 and disappear at 7 -x = 6.5 where an orthorhombic phase disappears and the mean valence of the Cu atom is +2.0. An electrical resistivity anomaly at 7-x = 6.5 on the oxygen concentration dependence has been observed at the normal state.

📜 SIMILAR VOLUMES

Studies of oxygen-deficient Ba2YCu3O7−δ
Studies of oxygen-deficient Ba2YCu3O7−δ and superconductivity Bi(Pb)SrCaCuO
✍ R.J. Cava; B. Batlogg; S.A. Sunshine; T. Siegrist; R.M. Fleming; K. Rabe; L.F. S 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 443 KB

Ambient temperature measurements of the crystallographic cell parameters for oxygen deficient Ba2YCu3OT_ ~ prepared by gettered annealing indicate the presence of microscopic differences in the oxygen configuration at fixed 5 dependent on annealing temperature. The loss of superconductivity with inc