Development of high critical current density in multifilamentary round-wire Bi2Sr2CaCu2O8+delta by strong overdoping

[摘要]：Bi2Sr2CaCu2O8+delta is the only cuprate superconductor that can be made into a round-wire conductor form with a high enough critical current density J(c) for applications. Here we show that the J(c)(5 T, 4.2 K) of such Ag-sheathed filamentary wires can be

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