[17p-Z19-1~7] 10.2 Fundamental and exploratory device technologies for spin

[17p-Z19-5] Measurement of spin-charge current conversion in Bi/Ni bilayer by using spin-torque ferromagnetic resonance method

〇Naoki Fukumoto¹, Masayuki Matsushima¹, Shoya Sakamoto², Ei Shigematsu¹, Ryo Ohshima¹, Yuichiro Ando¹, Shinji Miwa², Masashi Shiraishi¹ (1.Kyoto Univ., 2.Tokyo Univ.)

Keywords:spintronics, bismuth

We investigated the spin-charge current conversion efficiency in the Bi/Ni bilayer by spin torque ferromagnetic resonance measurement. The Bi layer and Ni layer were formed as single crystals. We measured the sample groups with different Bi film thicknesses and obtained a large conversion efficiency as compared with the previous studies.