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Effects of thickness on the grain alignment and J c properties of (Hg 0.8 Re 0.2 )Ba 2 Ca 2 Cu 3 O x superconductor thick films

Physica C: Superconductivity, ISSN: 0921-4534, Vol: 460, Issue: SPEC. ISS., Page: 1386-1387
2007
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(Hg 0.8 Re 0.2 )Ba 2 Ca 2 Cu 3 O x superconducting films of 1–80 μm thickness have been prepared on MgO(1 0 0) substrates using spraying process and post-Hg-vapor annealing. The effects of thickness on the grain alignment and J c properties have been investigated. The best T c and T zero were found to be 131.9 K and 129 K respectively, for 50 μm thick sample. Magnetic properties up to 6 T have been investigated. The calculated critical current density, J cmag, was found to be 4.8 × 10 5 A cm −2 at 4.2 K for 50 μm thick sample.

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