Ba0.5Sr0.5CuOz: A New Perovskite Related Structure Which Forms at High Pressure of 6GPa
A perovskite related structure was found in the sample of nominal composition of Ba0.5Sr0.5CuOz which was synthesized at a high pressure of 6GPa, when carbonates were used for the starting materials. The space group for the new structure was found to be Pmmm by means of a transmission electron microscopic observation. The lattice parameters were; a=3.92 Å, b=3.94 Å and c=7.93 Å. The cation ordering between Ba and Sr caused to the double stack of the perovskite blocks.
KeywordsMagnetic Susceptibility Electrical Resistivity Superconducting Cuprates Gold Tube High Pressure Technique
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