[We-P] Spintronics, spin-related phenomena, novel spintronics materials and devices

[We-P-63] Efficient Spin–Charge Conversion in Ferromagnetic Metal Fe / Topological Dirac Semimetal α-Sn Heterostructures Modified by Magnetic Proximity Effect

〇Masayuki Ishida¹, Soichiro Fukuoka¹, Takahiro Chiba^3,4, Yohei Kota⁵, Masaaki Tanaka^1,2,6, Anh Duc Le^1,2 (1. The University of Tokyo (Japan), 2. Center for Spintronics Research Network (Japan), 3. Yamagata Univ. (Japan), 4. Tohoku Univ. (Japan), 5. NIT Fukushima College (Japan), 6. Institute for Nano Quantum Information Electronics (NanoQuine) (Japan))

We show how the magnetic proximity effect (MPE) affect the topological surface states (TSSs) and their spin-to-charge conversion efficiency in Fe / topological Dirac semimetal α-Sn heterostructures. By optimizing the MPE on TSS, an inverse Edelstein length of 2.8 nm at room temperature is reported.