Superconductivity up to 90 K in a New Fa
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S.F. Hu; D.A. Jefferson; R.S. Liu; P.P. Edwards
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Article
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1993
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Elsevier Science
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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