论文标题
手性多层膜中天空形成机理的热演化
Thermal evolution of skyrmion formation mechanism in chiral multilayer films
论文作者
论文摘要
手性多层磁性磁性质感的磁性天际构成。在这里，我们报告了基于CO/PT的多层人士中这种条纹对骨气转变的温度依赖性的实验和理论研究。在100-350 K上进行的场 - 反转磁力测定法和Lorentz显微镜实验在较高的温度下建立了条纹到斜肌裂变的疗效，这主要是由关键磁相互作用的热演化驱动，从而增强了天际密度。原子计算阐明了裂变的能量障碍控制天空形成的热力学。我们的结果建立了条纹向骨气过渡的机理图片，并推动了热旋钮的使用来有效地产生。
Magnetic skyrmions form in chiral multilayers from the shrinking or fission of elongated stripe textures. Here we report an experimental and theoretical study of the temperature dependence of this stripe-to-skyrmion transition in Co/Pt-based multilayers. Field-reversal magnetometry and Lorentz microscopy experiments over 100 - 350 K establish the increased efficacy of stripe-to-skyrmion fission at higher temperatures - driven primarily by the thermal evolution of key magnetic interactions - thereby enhancing skyrmion density. Atomistic calculations elucidate that the energy barrier to fission governs the thermodynamics of the skyrmion formation. Our results establish a mechanistic picture of the stripe-to-skyrmion transition and advance the use of thermal knobs for efficient skyrmion generation.
