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New 1212-type superconductors with a Tc upt to 85 K in the system Hg-Pr-Sr-Ca-Cu-O

✍ Scribed by M. Hervieu; G. Van Tendeloo; A. Maignan; C. Michel; F. Goutenoire; B. Raveau

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 704 KB
Volume: 216
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(93)90070-7

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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