High Temperature Superconductivity on the New Superconductor System Yb1.8Sm1.2Ba5Cu8O18
2013
The synthesis of the new high temperature superconductor system Yb1.8Sm1.2Ba5Cu8O18 is reported. The new material was produced using the standard solid-state reaction method. The structural characterization of the compound was performed by X-ray diffraction and Rietveld refinement using a polycrystalline sample of the material. Structural ordering corresponds to an orthorhombic structure, from the space group Pmm2. The lattice parameters of the material are reported here. The superconducting nature of the material was determined by measuring the magnetization, as a function of its temperature, in the regime of low and mean field. A critical temperature value of T c ∼88 K was determined for Yb1.8Sm1.2Ba5Cu8O18. The experimental results have shown that the production of a novel group RE3Ba5Cu8O18 of high-T c superconductivity is possible, by substitution of RE instead of Y in the recently reported new superconductor material Y3Ba5Cu8O18.
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