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- W2074062448 abstract "The two-step reaction method was proposed to prepare sub-micron carbon-doped MgB2 superconductors. The sample with a nominal composition of Mg(B0.95C0.05)4 was sintered at 1000 °C for 0.5 h. An appropriate amount of Mg was then added to get the stoichiometry of Mg(B0.95C0.05)2, which was sintered at 750 °C for 2 h. The upper critical field of Hc2 for the sub-micron carbon-doped MgB2 by a two-step reaction reached 10.5 T at 20 K. The critical current density Jc is 7.8 × 104 A cm−2 at 20 K and 1 T. The results indicate that the two-step reaction method could effectively introduce the doping element of carbon into the MgB2 crystalline lattice, and therefore improve the upper critical field." @default.
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- W2074062448 date "2007-03-05" @default.
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- W2074062448 title "Enhancement of the upper critical field in sub-micron carbon-doped MgB<sub>2</sub>by two-step reaction method" @default.
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- W2074062448 doi "https://doi.org/10.1088/0953-2048/20/4/012" @default.
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