论文标题
稳定磁性天空在磁性记录应用的自组装六角形纳米组阵列上
Stabilization of Magnetic Skyrmions on Arrays of Self-Assembled Hexagonal Nanodomes for Magnetic Recording Applications
论文作者
论文摘要
磁性天空是非平凡的自旋纹理，可抵抗外部扰动，是下一代记录设备的有前途的候选人。然而，实现基于天际的设备的主要挑战是在环境条件下这些自旋纹理的有序阵列稳定，并且施加了零。在这里，我们首次证明了磁性天空在自组装的六边形纳米构中的形成和稳定，利用其弯曲几何形状的固有特性。来自100 nm纳米组阵列的磁力显微镜图像在纳米结构的地形下排列的零场显示稳定的天空。将微磁模拟与实验进行比较，以确定域纹理与样品的地形的相关性。我们提出了一种简单的方法来核定和歼灭天空，开辟了基于高稳定性和低能消耗的超密集数据存储的可能性。
Magnetic skyrmions are nontrivial spin textures which resist external perturbations, being promising candidates for the next generation recording devices. Nevertheless, a major challenge in realizing skyrmion-based devices is the stabilization of ordered arrays of these spin textures under ambient conditions and zero applied field. Here, we demonstrate for the first time the formation and stabilization of magnetic skyrmions on arrays of self-assembled hexagonal nanodomes taking advantage of the intrinsic properties of its curved geometry. Magnetic force microscopy images from the arrays of 100 nm nanodomes showed stable skyrmions at zero field that are arranged following the topography of the nanostructure. Micromagnetic simulations are compared to the experiments to determine the correlation of the domain textures with the topography of the samples. We propose a simple method to nucleate and annihilate skyrmions, opening the possibility for ultra-dense data storage based on the high stability and low energy consumption of the skyrmionic textures.
