Abstract
In magnetic system with large spin-orbit coupling (SOC) and inversion asymmetry, the Dzyaloshinskii-Moriya interaction (DMI) becomes non-negligible [1], [2]. Recently magnetic skyrmions stabilized by DMI are expected to have potential as information unit for storage and logic devices [3]. There are two types of SOCs in skyrmion studies. One is for Rashba SOC induced by structural inversion asymmetry. The other is Weyl SOC induced by bulk inversion asymmetry, typically observed in B20 structures. However, studies on magnetic skyrmion stabilized by Dresselhaus SOC have lacked. The Dresselhaus SOC is induced by bulk inversion asymmetry [4], and its magnitude can be similar to that of Rashba SOC [5]. In this work, based on micromagnetic simulation, we investigate current-induced skyrmion dynamics in ferromagnet nanowire with three types of SOCs. We consider DMI and spin orbit spin transfer torque (SOT) having the symmetry with the corresponding SOC.
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