[20p-131-1~8] 【CS.9】 Code-sharing Session of 10.1, 10.2, 10.3 & 10.4

▲ [20p-131-4] Observation of Brownian motion of magnetic skyrmion and its control by voltage

〇Takayuki Nozaki¹, Yuma Jibiki², Minori Goto², Eiiti Tamura², Hitoshi Kubota¹, Akio Fukushima¹, Yoshishige Suzuki^1,2, Shinji Yuasa¹ (1.AIST, 2.Osaka Univ.)

Keywords:Spintronics, Voltage-controlled magnetic anisotropy, Tunnel magnetoresistance

Magnetic skyrmion gathers a gread deal of attention as a new tool for spintronic information processing, such as a race track memory and logic devices. As a novel approach, Browninan computing operated by thermally-activated random walk of skyrmion is recently proposed. In this work, we observed the Brownian motion of skyrmion formed in W/FeB/Ir/MgO structure at room temperature. In addition, we successfully demonstrated the electrical control of diffusion length of Brownian motion by voltage applications.