[18p-PB1-1~84] 10 Spintronics and Magnetics (Poster)

▲ [18p-PB1-15] Coupling between acoustic and optic magnons in synthetic antiferromagnets

〇Yoichi Shiota¹, Tomohiro Taniguchi², Mio Ishibashi¹, Takahiro Moriyama¹, Teruo Ono¹ (1.Kyoto Univ., 2.AIST)

Keywords:Synthetic antiferromagnets, Spin waves, Magnon-magnon coupling

In this study, we investigated the spin waves with the antiferromagnetic resonanc modes, which is an acoustic mode (in-phase precession) and an optic mode (out-of-plane precession), in synthetic antiferromagnets. Two resonant modes are hybridezed and the anti-crossing gap is generated by changing the in-plane field angle. We also find that coupling strength is proportional to the spin wave wavenumber. In the presentation, we will discuss more detail about experimental result with the theoretical description.