Trapped Field of YBCO Bulk Superconductors Prepared by Infiltration Growth Process

• Authors: L. Vojtkova , P. Diko , S. Piovarči
• Languages of publication: EN

Abstracts

EN

Single grain Y₁Ba₂Cu₃O_{7-x} (YBCO) bulk superconductors were prepared from different starting precursors. In the first case, Y₂Ba₁Cu₁O₅ (Y211) powder as the solid phase and the liquid phase of mixture of YBa₂Cu₃O_{7-x}+BaCuO₂+CuO powders were used. In the second case, the solid phase was prepared from the mixture of Y₂O₃+BaCuO₂ instead of the conventionally used Y211, and as the liquid phase a mixture of Y₂O₃+BaCuO₂+CuO powders was used. The trapped field measurements at 77 K were performed and microstructure of samples was studied by polarized light microscopy. The positive influence of Y₂O₃+BaCuO₂ starting precursor on the oxygenation, Y211 particle refinement and measured trapped field is shown.

Keywords

EN

74.72.-h; 74.81.Bd; 61.50.-f; 74.25.Ha; 81.10.Fq

Discipline

• 74.72.-h: Cuprate superconductors
• 74.25.Ha: Magnetic properties including vortex structures and related phenomena(for vortices, magnetic bubbles, and magnetic domain structure, see 75.70.Kw)
• 81.10.Fq: Growth from melts; zone melting and refining
• 61.50.-f: Structure of bulk crystals
• 74.81.Bd: Granular, melt-textured, amorphous, and composite superconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 1048-1050

Dates

published

2017-04

Contributors

author

L. Vojtkova

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Košice, Slovakia

author

P. Diko

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Košice, Slovakia

author

S. Piovarči

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Košice, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.131.1048