Pinning enhancement and critical current densities in (Sm{sub 0.5}Y{sub 0.5})Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} superconductor
A fabrication method of homogeneous (Sm{sub o.5}Y{sub 0.5})Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} superconductor substituted Y with Sm has been developed using zone melting process. A sample prepared by this method showed well textured microstructure and (Sm{sub 0.5}Y{sub 0.5}){sub 2}BaCuO{sub 5} particles were uniformly dispersed in large (Sm{sub 0.5}Y{sub 0.5})Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} grain. The sample showed a sharp superconducting transition at 90.3 K. The magnetization measurements of the (Sm{sub 0.5}Y{sub 0.5})Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} sample exhibited the enhanced flux pinning compared with YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} samples without Sm. Critical current densities of (Sm{sub 0.5}Y{sub 0.5})Ba{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} was 1.8 x 10{sup 4} A/cm{sup 2} at 10 kOe and 77 K.
- Research Organization:
- Korea Research Inst. of Standards and Science, Yusong, Taejon (KR)
- OSTI ID:
- 20000844
- Journal Information:
- IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers) Journal Issue: 5Pt2 Vol. 35; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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