[17a-D61-1~10] 10.3 Spin devices, magnetic memories and storages

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[17a-D61-8] Chaotic dynamics of spintronic oscillator with tunable anharmonic potential

〇(M1)Ryo Tatsumi¹, Takahiro Chiba¹, Takash Komine², Hiroaki Matsueda¹ (1.Tohoku Univ., 2.Ibaragi Univ.)

Keywords:

spin torque FMR,chaos,STO

In this study, we theoretically propose a spintronic oscillator that realizes chaotic magnetization dynamics in the spin-torque ferromagnetic resonance. This model is inspired by the Duffing equation which represents chaotic dynamics in a particle system. Based on the Landau-Lifshitz-Gilbert equation, we investigated the magnetization dynamics and find that chaotic dynamics occurs when the input is around 20 mT, whose value is about 1/10 of the previous study.