[20p-131-1~8] 【CS.9】 10.1 新物質・新機能創成（作製・評価技術）, 10.2 スピン基盤技術・萌芽的デバイス技術, 10.3 スピンデバイス・磁気メモリ・ストレージ技術, 10.4 半導体スピントロニクス・超伝導・強相関のコードシェアセッション

▲ [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.)

キーワード：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.