论文标题
界面Dzyaloshinskii-Moriya互动的电场控制
Electric field control of interfacial Dzyaloshinskii-Moriya interaction in Pt/Co/AlO$_x$ thin films
论文作者
论文摘要
我们通过磁光kerr显微镜研究了pt/co/alo $ _x $ trilayer中磁性特性的电场修饰。我们观察到由于零施加的磁场在零施用的磁场下，由于热激活的域成核和传播而导致迷宫磁磁体结构的自发形成。观察到电场下迷宫结构周期的变化以及饱和磁化和磁各向异性变化。使用条纹平衡宽度的分析公式，我们估计了界面dzyaloshinskii-moriya在电场下的变化，这是交换刚度常数的功能。
We studied electric field modification of magnetic properties in a Pt/Co/AlO$_x$ trilayer via magneto-optical Kerr microscopy. We observed the spontaneous formation of labyrinthine magnetic domain structure due to thermally activated domain nucleation and propagation under zero applied magnetic field. A variation of the period of the labyrinthine structure under electric field is observed as well as saturation magnetization and magnetic anisotropy variations. Using an analytical formula of the stripe equilibrium width we estimate the variation of the interfacial Dzyaloshinskii-Moriya interaction under electric field as function of the exchange stiffness constant.
