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《Chinese Science Bulletin》 2008年18期
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High pressure effects on the crystal structure andelectric conductivity of perovskite like (Ca/Sr)_2CuO_2Cl_2 compounds

【摘要】:The crystal structure stability as well as electric conductance of (Sr/Ca)_2CuO_2Cl_2 compound with K_2NiF_4 structure was investigated up to 31 GPa using diamond anvil technique. It seems that (Sr/Ca)_2CuO_2Cl_2 is quite stable under pressure but with obvious anisotropic compressibility. The equation of state (EOS) obtained shows relative large bulk modulus.
【基金】:National Basic Research Program of China (Grant Nos. 2005CB724402, 2006CB601002) National Natural Science Foundation of China (Grant No. 50701048)
【分类号】:O521.2
【正文快照】:
High temperature superconductors (HTS) are a focus of study in the condensed matter physics. HTS crystal- lographically is a kind of perovskite derivation cuprate with CuO2 plane being the central configuration. High pressure is favorable to stabilizatio

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