[7a-N302-1~9] 10.2 Fundamental and exploratory device technologies for spin

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[7a-N302-4] Effect of Spin-Wave Mode on Physical Reservoir Computing using Synthetic Antiferromagnet

〇(M1)Takumu Shinkai¹, Satoshi Iihama¹, Kensuke Hayashi¹, Takahiro Moriyama¹ (1.Nagoya Univ.)

Keywords:

Spin wave reservoir computing,Synthetic Antiferromagnet

This study proposes a novel approach for enhancing the computational performance of spin-wave-based physical reservoir computing (PRC) by leveraging the modal degree of freedom in synthetic antiferromagnets (SAFs). By selectively exciting acoustic and optical spin-wave modes—unique to SAFs due to interlayer exchange coupling—we demonstrate the ability to tune both linear memory capacity (MC) and nonlinear information processing capacity (IPC). Micromagnetic simulations using Mumax3 confirm distinct dispersion relations and propagation characteristics for each mode, highlighting the potential of SAFs for energy-efficient, high-density neuromorphic hardware.