Crystal Size Improvement of Bi-based Superconducting Whiskers under Stress-controlled Condition

Sayaka Yamamoto; Ryo Matsumoto; Shintaro Adachi; Yoshihiko Takano; Hiroyuki Muto; Hiromi Tanaka

doi:10.1016/j.jcrysgro.2020.125669

Crystal Size Improvement of Bi-based Superconducting Whiskers under Stress-controlled Condition

Superconductivity 2020-05-20 v1 Materials Science

Authors: Sayaka Yamamoto , Ryo Matsumoto , Shintaro Adachi , Yoshihiko Takano , Hiroyuki Muto , Hiromi Tanaka

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Abstract

Using stress-controlled amorphous precursors, we have successfully grown large $Bi_{2}$ $Sr_{2}$ $Ca_{\textit{n}-1}$ $Cu_{\textit{n}}$ $O_{\textit{y}}$ (Bi-based) high-transition temperature superconducting whiskers. Especially, under a high compressive stress attained by 1 GPa pelletizing, the crystal size of a whisker was significantly enhanced up to 9.5 mm length (growth period: 96 h) which is 2.4 times larger than that of the conventional amorphous-precursors method. In addition, by using the stress-controlled precursors, the number of the obtained Bi-based whiskers were also increased by a factor of 1.8.

Keywords

bi-based superconductors superconducting whiskers stress-controlled precursors crystal size high-tc superconductors

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@article{arxiv.1911.00224,
  title  = {Crystal Size Improvement of Bi-based Superconducting Whiskers under Stress-controlled Condition},
  author = {Sayaka Yamamoto and Ryo Matsumoto and Shintaro Adachi and Yoshihiko Takano and Hiroyuki Muto and Hiromi Tanaka},
  journal= {arXiv preprint arXiv:1911.00224},
  year   = {2020}
}

Crystal Size Improvement of Bi-based Superconducting Whiskers under Stress-controlled Condition

Abstract

Keywords

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