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Abstract

Sol-gel synthesis for optimally doped-germanium (III)-NdBCO superconducing material

Author(s): Khaled M.Elsabawy, M.M.Abou-Sekkina, Q.Mohsen

The superconducting sample with formula Nd0.8Ge 0.2Ba2Cu3Oz was synthesized by using sol-gel route with two different solution precursors depending upon metals-citerates complexed with ethylenediamine. Structural and microstructural propertiesweremonitoring by using both ofXRD and SEM evaluating that neodymium-based cuprate has the superconducting 123- orthorhombic phase as proved in the X-ray diffractogram,grain size of the material bulk was found to be in between 0.31-0.82 m.Magneticmeasurements indicated that the Ge-doped neodymium cuprate system exhibits an superconducting behavior(Tc-offset = 92.1K) confirming that semi-conducting germanium dopings enhance the conduction mechanism of the superconducting sample.


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