Transport Critical Current Density of Polycrystalline YBCO in Zero Field Cooled and Field Cooled States : A Comparison

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概要

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• Magnetic field dependence of transport critical current density (J_c) of a polycrystalline YBCO superconductor in field cooled and zero field cooled cases have been studied experimentally. The measured J. value when the sample was cooled in a field (FC) was always larger than that measured for a zero field cooled (ZFC) case in the same magnetic field. We also observe (i) a peak in the field dependence of the ratio of J_c in FC case to that of ZFC case and (ii) an anomalous rise in J_c in ZFC case with increasing field. These observations are explained as a signature of two types of regions (intergrain and intragrain) in sintered specimens.

• 社団法人応用物理学会の論文
• 1990-09-20

著者

• Ravikumar G.

  Solid State Physics Division

• MISHRA P.

  Solid State Physics Division

• CHADDAH P.

  Solid State Physics Division

• KUMAR Shailendra

  Solid State Physics Division

• DASANNACHARYA B.

  Solid State Physics Division

関連論文

• Transport Critical Current Density of Polycrystalline YBCO in Zero Field Cooled and Field Cooled States : A Comparison

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