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Magnetic-field angle dependence of the critical current density in high-quality Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ thin films

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7 Author(s)
Yamasaki, H. ; Electrotech. Lab., MITI, Ibaraki, Japan ; Endo, K. ; Kosaka, S. ; Umeda, M.
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Critical current densities, J/sub c/, have been investigated in as-deposited Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ thin films with c-axis orientation, which were prepared by metalorganic chemical vapor deposition (MOCVD). One of these films showed record high J/sub c/ values for Bi-oxide thin films: 1.3*10/sup 10/ A/m/sup 2/ at 70 K; 10/sup 11/ A/m/sup 2/ at 30 K. Almost-field-independent J/sub c/ was observed in the magnetic fields applied parallel to the film surface (a-b plane) in a wide temperature range (>

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Applied Superconductivity, IEEE Transactions on  (Volume:3 ,  Issue: 1 )