Synthesis and Structure of Sr1-xLixCuO2 (0<x<:0.15) Phases Produced at High Temperatures and Pressures

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• 作者：Sannikova ; M. A. ; D&apos ; yachkova ; T. V. ; Tyutyunnik ; A. P. ; Zubkov ; V. G. ; Kadyrova ; N. I. ; Zainulin ; Yu. G.
• 关键词：infinitelayer structure ; copper oxide superconductors ; thermobaric synthesis
• 刊名：Journal of Structural Chemistry
• 出版年：2003
• 出版时间：2003
• 年：2003
• 卷：44
• 期：2
• 页码：231-234
• 全文大小：198 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Physical Chemistry
  Atoms, Molecules, Clusters and Plasmas
  Atomic and Molecular Structure and Spectra
  Solid State Physics and Spectroscopy
  Russian Library of Science
  
• 出版者：Springer New York
• ISSN：1573-8779

文摘

We studied the possibility of synthesizing infinite‐layer (IL) phases of Sr_1-xLi_xCuO₂ (0<x<1) composition from both orthorhombic Sr_1-xLi_xCuO₂ (0 < x < 1) solid solutions and from the corresponding cuprates, SrCuO₂ and Li₂CuO₂, at high pressures (P = 4&ndash;8 GPa) and high temperatures (T = 600&ndash;1000°). The optimal conditions for synthesis of the IL phases are P = 4 GPa, T = 800°gr, and τ = 2 min. At high pressures and temperatures, the components of the SrCuO₂&ndash;LiCuO₂ system show limited mutual solubility. Sr_1-xLi_xCuO₂ solid solutions exist at 0 < x < 0.15. The relationship between the unit cell parameters and Li content of high‐pressure Sr_1-xLi_xCuO₂ phases has been established.