Fabrication of binary FeSe superconducting wires by novel diffusion process

Details Fabrication of binary FeSe superconducting wires by novel diffusion process Fabrication of binary FeSe superconducting wires by novel diffusion process

2011-03-18

arxiv.org/abs/1103.3602v2

Physics

Condensed Matter

Superconductivity

14 pages, 5 figures, accepted for publication in J. Appl. Phys

Scientific paper

We report successful fabrication of multi- and mono-core FeSe wires with high transport critical current density Jc using a simple in-situ Fe-diffusion process based on the powder-in-tube (Fe-diffusion PIT) method. The seven-core wire showed transport Jc of as high as 1027 A/cm2 at 4.2 K. The superconducting transition temperature Tczero was observed at 10.5 K in the wire-samples, which is about 2 K higher than that of bulk FeSe. The Fe-diffusion PIT method is suitable for fabricating multi-core wires of the binary FeSe superconductors with superior properties.

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