3 papers
cond-mat.mes-hall2026
Current-control of chaos and effects of thermal fluctuations in magnetic tunnel junctions
Ryo Tatsumi, Shinji Miwa, Hiroaki Matsueda +1
We theoretically investigate the chaotic behavior of spin-torque ferromagnetic resonance in magnetic tunnel junctions (MTJs) with perpendicular magnetic anisotropy under thermal fl…
cond-mat.mes-hall2025
Circuit-based cavity magnonics in the ultrastrong and deep-strong coupling regimes
Takahiro Chiba, Ryunosuke Suzuki, Takashi Otaki +1
We theoretically study nonperturbative strong-coupling phenomena in cavity magnonics systems in which the uniform magnetization dynamics (magnons) in a ferromagnet is coupled to th…
cond-mat.mes-hall2025
Gain-driven magnon-polariton dynamics in the ultrastrong coupling regime: Effective circuit approach for coherence versus nonlinearity
Ryunosuke Suzuki, Takahiro Chiba, Hiroaki Matsueda
We theoretically study the dynamics of gain-driven magnon-polaritons (MPs), which characterizes auto-oscillation of MPs, across the strong coupling (SC) and ultrastrong coupling (U…