[10a-Z08-1~10] 10.2 Fundamental and exploratory device technologies for spin

[10a-Z08-3] Realization of Ferromagnetic Resonance in 1 nm Co ultrathin film

〇Shugo Yoshii¹, Ryo Ohshima¹, Yuichiro Ando¹, Teruya Shinjo¹, Masashi Shiraishi¹ (1.Kyoto Univ.)

Keywords:Spintronics, Ultra-thin ferromagnetic metal, Ferromagnetic resonance

Physics in nanometer-thick films has been attracting many researchers because of abundant spintronics nature. Whilst ultrathin films have these potentials, it is not easy to realize the uniform magnetization precession in the ultrathin FM film, which has hampered the observation of the magnetization dynamics. In this research, we successfully demonstrate the ferromagnetic resonance (FMR) in a 1 nm-thick Co film by inserting the buffer layer beneath the Co layer. A more detailed discussion will be given in the presentation.