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arXiv · 1112.4119

Enhancement of superconducting properties in FeSe wires using a quenching technique

Toshinori Ozaki·Yoshikazu Mizuguchi·Satoshi Demura·Keita Deguchi·Yasuna Kawasaki·Toru Watanabe·Hiroyuki Okazaki·Hiroshi Hara·Hiroyuki Takeya·Takahide Yamaguchi·Hiroaki Kumakura·Yoshihiko Takano
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Abstract

Enhancements of superconducting properties were observed in FeSe wires using a quenching technique. Zero resistivity was achieved at about 10 K in quenched wires, which is about 2 K higher than that of polycrystalline FeSe bulk. Furthermore, transport Jc of quenched wires showed three times higher than that of furnace-cooled wires. In contrast, the quenched polycrystalline FeSe bulks did not show the enhancement of Tc. The quenching technique is a greatly promising for fabricating FeSe wires with high Tc and high Jc, and quenched FeSe wires have high potential for superconducting wire applications.

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Toshinori Ozaki, Yoshikazu Mizuguchi, Satoshi Demura, Keita Deguchi, Yasuna Kawasaki, Toru Watanabe, Hiroyuki Okazaki, Hiroshi Hara, Hiroyuki Takeya, Takahide Yamaguchi, Hiroaki Kumakura, Yoshihiko Takano. 2012-01-12. Enhancement of superconducting properties in FeSe wires using a quenching technique. https://doi.org/10.1063/1.3673826

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