High-pressure synthesis of single-phase superconductors HgzSrxBa2-xCa2Cu3O8+δ and (Hg, M)Sr2Ca2Cu3Oy with MPb and Mo

Z. H. He, Q. M. Lin, L. Gao, Y. Y. Sun, Y. Y. Xue, C. W. Chu

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)

摘要

The recent observation of superconductivity above 160 K under high pressures has prompted us to investigate the possibility of retaining such high-temperature superconductivity at ambient pressure by substituting Sr for Ba in HgBa2Ca2Cu3O8 (Hg-1223). High-purity (≥90%) Hg-1223 phase samples were synthesized with a nominal composition of HgzSrxBa2-xCa2Cu3 O8+δ (where z=0.75 and x=0, 0.5 or 1). By adding a second element, Pb or Mo, supposedly to the Hg site, (Hg,Pb/Mo)Sr2Ca2Cu2 O8+δ with purity up to 90% was achieved. Unfortunately, Tc decreases with Sr substitution. The roles of Sr in the phase stability, and the synthesis conditions of the Sr based Hg-1223, and the Sr substitution effect on the Tc of these samples will be discussed.

原文English
頁(從 - 到)211-218
頁數8
期刊Physica C: Superconductivity and its applications
241
發行號3-4
DOIs
出版狀態Published - 1995 一月 15

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程

指紋

深入研究「High-pressure synthesis of single-phase superconductors Hg<sub>z</sub>Sr<sub>x</sub>Ba<sub>2-x</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>8+δ</sub> and (Hg, M)Sr<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> with MPb and Mo」主題。共同形成了獨特的指紋。

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