[P19-SF3A] Poster 1 remote

[P19-SF3A-39] Multiple-step topological phase transitions in a centrosymmetric tetragonal magnet GdRu₂Ge₂

*Haruto Yoshimochi¹, Rina Takagi^1,2,3,4, Satoru Hayami^1,3, Jiwon Ju⁵, Nguyen Duy Khanh⁴, Hikaru Saito⁵, Hajime Sagayama⁶, Hironori Nakao⁶, Taka-hisa Arima^4,7, Yoshinori Tokura^1,4,8, Taro Nakajima^4,5, Shinichiro Seki^1,2,3,4 (1. Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan, 2. Institute of Engineering Innovation, University of Tokyo, Tokyo 113-0032, Japan, 3. PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan, 4. RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan, 5. The Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-0882, Japan, 6. Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 319-1195, Japan, 7. Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan, 8. Tokyo College, The University of Tokyo, Tokyo 113-8656, Japan)