[G] 分析・解析・評価

9:15 〜 9:30

[191] In-situ 4D-STEM Observation of Microstructure Formation in Polycrystalline Co-doped BaFe₂As₂ Superconductor

Yiming MA¹, Yushuke SHIMADA², Hongye GAO³, Yuta HASEGAWA⁴, Shinnosuke TOKUTA⁴, Akiyasu YAMAMOTO⁴, Akinori YAMANAKA⁴, *Satoshi HATA^2,3 (1. Interdisciplinary Graduate School of Engineering Sciences, Kyushu Univ., Kasuga, Fukuoka, Japan、2. Faculty of Engineering Sciences, Kyushu Univ., Kasuga, Fukuoka, Japan、3. The Ultramicroscopy Research Center, Kyushu Univ., Fukuoka, Japan、4. Faculty of Engineering, Tokyo Univ. Agric. & Technol., Tokyo, Japan)

キーワード：

Iron-based superconductor、In-situ、TEM、4D-STEM

In-situ 4D-STEM reveals Ba122 formation and orientation with FeAs after heating, offering insights to optimize microstructure for enhanced critical current density.