Fabrication of binary FeSe superconducting wires by novel diffusion process

Toshinori Ozaki; Keita Deguchi; Yoshikazu Mizuguchi; Yasuna Kawasaki; Takayoshi Tanaka; Takahide Yamaguchi; Hiroaki Kumakura; Yoshihiko Takano

doi:10.1063/1.4726243

Fabrication of binary FeSe superconducting wires by novel diffusion process

Superconductivity 2015-05-27 v3

Authors: Toshinori Ozaki , Keita Deguchi , Yoshikazu Mizuguchi , Yasuna Kawasaki , Takayoshi Tanaka , Takahide Yamaguchi , Hiroaki Kumakura , Yoshihiko Takano

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Abstract

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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@article{arxiv.1103.3602,
  title  = {Fabrication of binary FeSe superconducting wires by novel diffusion process},
  author = {Toshinori Ozaki and Keita Deguchi and Yoshikazu Mizuguchi and Yasuna Kawasaki and Takayoshi Tanaka and Takahide Yamaguchi and Hiroaki Kumakura and Yoshihiko Takano},
  journal= {arXiv preprint arXiv:1103.3602},
  year   = {2015}
}

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14 pages, 5 figures

Fabrication of binary FeSe superconducting wires by novel diffusion process

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