论文标题
由共存自旋玻璃的集体动力学驱动的抗铁磁开关
Antiferromagnetic Switching Driven by the Collective Dynamics of a Coexisting Spin Glass
论文作者
论文摘要
抗铁磁铁的电交换的理论是建立在定义明确的破碎对称状态的基础上，该状态可以旋转以编码信息。自旋玻璃在许多方面都是这种状态的对立面，其特征是具有几乎退化的磁性构型的千古景观，选择以看似消失的信息的方式将其冻结成它们的分布。在这项研究中，我们表明，自旋玻璃和抗磁磁性的共存允许一种新颖的机制，可以促进抗fiRomagnet Fe $ _ {1/3+δ} $ nbs $ _2 $的转换，该机构扎根于自旋玻璃的电刺激的集体绕组中。自旋玻璃的局部质地打开了相互作用的各向异性通道，该通道可用于旋转抗磁性状态的平衡方向。以前从未使用过旋转玻璃的集体动力学来电气操纵抗铁磁旋转纹理，从而向具有复杂磁纹理的更多材料平台开放了抗磁性旋转型的领域。
The theory behind the electrical switching of antiferromagnets is premised on the existence of a well defined broken symmetry state that can be rotated to encode information. A spin glass is in many ways the antithesis of this state, characterized by an ergodic landscape of nearly degenerate magnetic configurations, choosing to freeze into a distribution of these in a manner that is seemingly bereft of information. In this study, we show that the coexistence of spin glass and antiferromagnetic order allows a novel mechanism to facilitate the switching of the antiferromagnet Fe$_{1/3+δ}$NbS$_2$, which is rooted in the electrically-stimulated collective winding of the spin glass. The local texture of the spin glass opens an anisotropic channel of interaction that can be used to rotate the equilibrium orientation of the antiferromagnetic state. The use of a spin glass' collective dynamics to electrically manipulate antiferromagnetic spin textures has never been applied before, opening the field of antiferromagnetic spintronics to many more material platforms with complex magnetic textures.
