论文标题
在室温下，小天空寿命长的原子观点
Atomistic perspective of long lifetimes of small skyrmions at room temperature
论文作者
论文摘要
当前在新型的Spintronic设备设计中采用磁性天空的开发导致对室温稳定的天空尺寸的需求越来越小。我们提出了关于两维几何形状原子磁系统中天空稳定性的广泛研究。我们表明，对于用相同的微磁参数描述的材料，不同邻居之间的原子交换的变化，堆叠顺序以及原子晶格的层数量可以显着影响天空热激活的衰减速率。仅这些因素就是重要的考虑因素，但是表明它们的组合可以在寻找低于10nm的Skyrmions时打开新颖的材料设计途径，因为它们的寿命可以通过几个数量级来延长。
The current development to employ magnetic skyrmions in novel spintronic device designs has led to a demand for room temperature-stable skyrmions of ever smaller size. We present extensive studies on skyrmion stability in atomistic magnetic systems in two- and three-dimensional geometries. We show that for materials described by the same micromagnetic parameters, the variation of the atomistic exchange between different neighbors, the stacking order, and the number of layers of the atomic lattice can significantly influence the rate of the thermally activated decay of a skyrmion. These factors alone are important considerations, but it is shown that their combination can open up novel avenues of materials design in the search for sub-10nm skyrmions, as their lifetime can be extended by several orders of magnitude.
