Prepared GdBa2 Cu3Oy Single Domain Superconducting Bulks in Air

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The preparation of the single domain GBCO bulk with 25 mm in diameter in air was reported. In order to avoid the Gd ions substituted the Ba sites, different BaCuO2 contents was added into the precursor powders. Tc of the samples achieved 94.3 K. The magne
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