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Composition-induced superconductivity (up to 55 K) in the system (Pb0.75Cu0.25)Sr2(Ca1−xYx)Cu2O7−δ

✍ Scribed by R.S. Liu; S.F. Hu; I. Gameson; P.P. Edwards; A. Maignan; T. Rouillon; D. Groult; B. Raveau


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
464 KB
Volume
93
Category
Article
ISSN
0022-4596

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Superconductivity up to 90 K in a New Fa
✍ S.F. Hu; D.A. Jefferson; R.S. Liu; P.P. Edwards 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 204 KB

A new family of superconductors were observed in the \(\left(\mathrm{Pb}_{4.5} \mathrm{Hg}_{2}\right) \mathrm{Sr}_{2}\left(\mathrm{Ca}_{4-5} \mathrm{Y}_{5}\right) \mathrm{Cu}_{2} \mathrm{O}_{7-5}\) system for the composition range \(0.5 \leq x \leq 0.2\), with a maximum \(T_{\mathrm{c}}\) of \(90 \m