[20p-B202-1~16] 11.1 Fundamental properties

5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[20p-B202-14] Fabrication of symmetric [010]-tilt grain boundaries of Fe(Se,Te)

〇Kazumasa Iida^1,6, Yoshihiro Yamauchi², Takafumi Hatano^2,6, Jens Haenisch³, Zimeng Guo^4,6, Hongye Gao⁴, Shinnosuke Tokuta^5,6, Haoshan Shi⁴, Satoshi Hata^4,6, Akiyasu Yamamoto^5,6, Hiroshi Ikuta² (1.Nihon Univ., 2.Nagoya Univ., 3.Karlsruhe Inst. of Tech., 4.Kyushu Univ., 5.Tokyo Univ. of Agricult. & Tech., 6.JST CREST)

Keywords:

Iron-based superconductor,grain boundary,critical current

We fabricated [010]-tilt roof-type grain boundaries in the iron-based superconductor Fe(Se,Te). The critical current density J_c between the grains (i.e., inter-grain J_c) was almost the same as that within the grains up to a grain boundary angle of 9º. This means that there is no weak link up to this grain boundary angle.