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Lead-mercury-based superconductors. The 1212 cuprate Pb0.7Hg0.3Sr2+xCa0.7Nd0.3-xCu2O7-δ and the new oxycarbonate Pb0.7Hg0.3Sr4Cu2CO3O7

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

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
698 KB
Volume
222
Category
Article
ISSN
0921-4534

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Structural and physical properties of th
Structural and physical properties of the new superconductor Hg0.5Pb0.5Sr4-xBaxCu2(CO3)O7-δ
✍ M. Huvé; G. Van Tendeloo; M. Hervieu; A. Maignan; B. Raveau 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 626 KB

A new series of superconducting compounds Hgi \_,~'b~Sr,\_xBaxCu2 (CO3)O7 has been synthesized. The critical temperature reaches a maximum of 68 K for x=2; for the x= 1 and y=0.5 compound, which is mainly studied here, the optimized Tc is around 55 K. All Pb containing compounds exhibit a modulation