[24p-P01-1~28] 10 Spintronics and Magnetics(Poster)

▲ [24p-P01-14] Creation and annihilation of magnetic skyrmions in Ta/CoFeB/Ta junction by electric field

〇Ryo Ishikawa¹, Minori Goto^2,3, Hikaru Nomura^2,3, Yoshishige Suzuki^2,3 (1.ULVAC, Inc., 2.Osaka Univ., 3.CSRN-Osaka)

Keywords:Skyrmion, VCMA

Magnetic Skyrmion is one of the candidates for novel information carrier in spintronics applications such as magnetic racetrack memories and logics [1,2]. Unlike conventional electric devices, utilize of Brownian-motion of Skyrmions for computation is also proposed and confirmed in Ta/CoFeB/Ta junction at room-temperature [3]. Brownian motion of skyrmions can potentially realize unconventional computing such as stochastic calculations and ultra-low power computing.
In this work, we investigated external electric field dependence of magnetic domain structure in Ta/CoFeB/Ta junctions known as a heterostructure that hosts skyrmions.
[1] A. Fert et al., Nat. Nanotechnol. 8, 152 (2013)
[2] X. Zhang et al., Sci. Rep. 5, 9400 (2015)
[3] J. Zázvorka et al., Nat. Nanotechnol. 14, 658 (2019)