[S1] S1 New Materials Science on Nanoscale Structures and Functions at Crystal Interface II

2:20 PM - 2:40 PM JST(5:20 AM - 5:40 AM UTC)

[S1.8] Local analysis of superconducting vortices at YBa₂Cu₃O₇ twin boundary

○Naoyuki Ichiryu¹, Satoko Toyama¹, Takeshi Iwata¹, Michael Xu¹, Takanori Motoki², Toshinori Ozaki³, Hirokazu Sasaki⁴, Takehito Seki¹, Naoya Shibata¹ (1. Inst. of Eng. Innovation, Sch. of Eng., UTokyo, 2. Coll. of Sci. & Eng., Aoyama Gakuin Univ., 3. Sch. of Eng., Kwansei Gakuin Univ., 4. Analysis Technology Center, Furukawa Electric Co., Ltd.)

Keywords:

Scanning Transmission Electron Microscopy,Superconductor,YBCO,Liquid Helium

Vortices are crucial factors governing the material properties of Type-II superconductors. To clarify their microscopic mechanism, we attempted simultaneous direct observation of both crystal defects and vortices using Differential Phase Contrast Scanning Transmission Electron Microscopy (DPC STEM).