[D2-O601] Oral 601

[D2-O601-07] Antiferromagnetic / Ferromagnetic Spin Fluctuations in Non-Superconducting Heavily Overdoped Bi-2201 Cuprate

*Yota Komiyama^1,2, Shusei Onishi¹, Koki Kawabata¹, Mayuko Harada¹, Hideki Kuwahara¹, Haruhiko Kuroe¹, Koshi Kurashima³, Takayuki Kawamata⁴, Yoji Koike³, Dita Puspita Sari^5,6, Isao Watanabe², Yoichi Ikeda⁷, Takanori Taniguchi⁷, Masaaki Matsuda⁸, Takatsugu Masuda⁹, Masaki Fujita⁷, Tadashi Adachi¹ (1. Department of Eng. and Applied Sci., Sophia Univ. (Japan), 2. Nuclear Structure Res. Group, RIKEN Nishina Center (Japan), 3. Department of Applied Physics, Tohoku Univ. (Japan), 4. Department of Natural Sci., Tokyo Denki Univ. (Japan), 5. Meson Sci. Lab., RIKEN Nishina Center (Japan), 6. Innovation Global Program, College of Eng., Shibaura Inst. of Tech. (Japan), 7. Inst. for Materials Research, Tohoku Univ. (Japan), 8. Neutron Scattering Division, Oak Ridge National Lab. (United States of America), 9. Inst. for Solid State Physics, The Univ. of Tokyo (Japan))

キーワード：Bi-2201cuprate, Ferromagnetic fluctuations, Antiferromagnetic fluctuations, Heavily overdoped regime, Magnetic impurity