引导天离子:抑制铁磁性纳米带中的天电荷霍尔效应

R. C. Silva, R. L. Silva, J. C. Moreira, W. A. Moura-Melo, A. Pereira
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引用次数: 0

摘要

在铁磁性和铁磁性(FI)天离子中观察到的自旋极化电流引起的天离子霍尔效应(SkHE)可能是技术应用中的一个难题。通过计算模拟研究赛道中铁磁天离子的特性,我们根据交换、Dzyaloshinski-Moriya 和各向异性耦合常数的相对值描述了它们运动的性质。此外,我们还利用一种设计策略,提出了一种类似磁性通道的纳米器件,其中创建了一种自旋极化电流协议,从而成功地控制了skyrmion在通道上的移动,而不会产生不利的SkHE。此外,只需调整电流强度,就能在纳米条带的不同平行通道之间改变天体离子的侧向位置。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Channeling skyrmions: Suppressing the skyrmion Hall effect in ferrimagnetic nanostripes
The Skyrmion Hall Effect (SkHE) observed in ferromagnetic and ferrimagnetic (FI) skyrmions traveling due to a spin-polarized current can be a problematic issue when it comes to technological applications. By investigating the properties of FI skyrmions in racetracks through computational simulations, we have described the nature of their movement based on the relative values of the exchange, Dzyaloshinskii–Moriya, and anisotropy coupling constants. Beyond that, using a design strategy, a magnetic channel-like nano-device is proposed in which a spin-polarized current protocol is created to successfully control the channel on which the skyrmion will travel without the adverse SkHE. Additionally, a simple adjustment in the current strength can modify the skyrmion position sideways between different parallel channels in the nanostripe.
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