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题名: The Formation of Infinite-layer Cuprates and Correlation with Temperature and Partial Pressure of Oxygen
作者: Liu, Chia-Jyi;Koriyama, S.;Yamauchi, H.
贡献者: 物理學系
日期: 1993-10
上传时间: 2012-09-10T06:11:08Z
出版者: Elsevier
摘要: Various combinations of calcination temperature and oxygen partial pressures have been investigated to stabilize the infinite-layer structure in Ca1−xSrxCuO2 and (Ca1−x−yYy)SrxCuO2 systems using a solid-state reaction method. It is found that the stability of infinite-layer structure for different compositions strongly depends on the calcination conditions. The infinite-layer structure is stable in the range of 0.12 ⩽ x ⩽ 0.16 for Ca1−xSrxCuO2 at the calcination conditions of 940°C and 3% partial pressure of oxygen, and also in the range of 0.08 ⩽ x ⩽ 0.12 at the calcination conditions of 1020°C and 1 atm of flowing oxygen. The solubility limit extends to the range of 0.10 ⩽ x ⩽ 0.20 for y = 0.02 in Ca1−x−yYySrxCuO2 prepared at 940°C under 3% partial pressure of oxygen.
關聯: Physica C: Superconductivity, 215(3-4): 395-401
显示于类别:[物理學系] 期刊論文


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