Synthesis and start cation-composition of HgBa2CuO4+δ

Q. Xiong, F. T. Chan, Y. Y. Xue, C. W. Chu

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

The synthesis conditions of HgBa2CuO4 + δ were studied. It was observed that the best phase purity was achieved at an apparent cation ratio of Hg:Ba:Cu = 0.7:2:1 that was obtained by either Hg deficient initial compositions or extra Hg absorbents, e.g. Au foil. No significant impurities or site mixing can be identified by X-ray/neutron powder diffraction investigations in these non-stoichiometric samples. However, their large paramagnetic background suggests the existence of (Ba, Cu) oxides. Our data also show that this apparent Hg deficiency is likely to be synthesis-reaction related.

原文English
頁(從 - 到)329-333
頁數5
期刊Physica C: Superconductivity and its applications
253
發行號3-4
DOIs
出版狀態Published - 1995 十一月 1

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

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