论文标题

电场控制机制,用于挠度

Electric Field Controlled Mechanism for the Deflection of Skyrmions

论文作者

Moody, Samuel H., Littlehales, Matthew T., White, Jonathan S., Mayoh, Daniel, Balakrishnan, Geetha, Venero, Diego Alba, Hatton, Peter D.

论文摘要

磁性天空是类似涡流的,磁化的漩涡,其拓扑保护和类似粒子的性质建议它们适合许多新型的自旋装置。这样的应用程序是Skyrmionic计算,由于逻辑计算和数据存储的合并,它比常规方案具有优势。使用Cu2oseo3的小角度中子散射,并应用电场和磁场,我们发现可以通过改变电场来操纵天空诊断圆锥状态的方向,并使用自由能方法来解释这一点。我们的发现解锁了创建许多可能构成Skyrmion计算机一部分的Skyrmion设备的前景,因为可以通过改变局部锥形状态的方向来控制纳米化赛马场内的天际矩阵方向。我们提供时间依赖的微型模拟来证明这种设备:Skyrmion Double晶体管。

Magnetic skyrmions are vortex-like, swirls of magnetisation whose topological protection and particle-like nature have suggested them to be suitable for a number of novel spintronic devices. One such application is skyrmionic computing, which has the advantage over conventional schemes due to the amalgamation of logic calculations and data storage. Using small-angle neutron scattering from Cu2OSeO3, and applying electric and magnetic fields, we find that the direction of the skyrmion-coexisting conical states can be manipulated by varying the electric field, and explain this using a free energy approach. Our findings unlock the prospect of creating a number of skyrmion devices which may constitute part of a skyrmion computer, as the direction of a skyrmion within a nanosized racetrack can be manipulated into different channels by controllably changing the direction of the localised conical state. We provide time-dependant micromagnetic simulations to demonstrate such a device: a skyrmion double transistor.

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