论文标题
应变工程结构域的结构及其在沉积在柔性聚酰亚胺上的垂直磁化co/pt中的松弛
Strain engineered domain structure and their relaxation in perpendicularly magnetized Co/Pt deposited on flexible polyimide
论文作者
论文摘要
具有灵活性的快速和电力旋转器设备的需求需要额外的能量来进行磁化操作。应力/和应变显示其将磁性特性调整到所需水平的潜力。在这里，我们报告了一项系统的研究，该研究对拉伸应力和压缩应力对磁各向异性（MA）的影响。进一步研究了应力对固定磁化膜/PT膜中磁化弛豫机制的影响。据观察，最小的平面抗拉力应变使膜的固定性增加了其初始值的38美元$ \％$，而在压缩应变下发现了非常小的胁迫变化。在拉伸应变下，铁磁结构域的大小减小，而在压缩应变下未观察到变化。在亚能力场上测得的磁化关系在紧张的状态下得出较长的松弛时间。
The demand of fast and power efficient spintronics devices with flexibility requires additional energy for magnetization manipulation. Stress/and strain have shown their potentials for tuning magnetic properties to the desired level. Here, we report a systematic study for the effect of both tensile and compressive stresses on the magnetic anisotropy (MA). Further the effect of stress on the domain structure and magnetization relaxation mechanism in a perpendicularly magnetized Co/Pt film has been studied. It is observed that a minimal in-plane tensile strain has increased the coercivity of the film by 38$\%$ of its initial value, while a very small change of coercivity has been found under compressive strain. The size of ferromagnetic domains decreases under tensile strain, while no change is observed under the compressive strain. Magnetization relxation measured at sub-coercive fields yields longer relaxation time in the strained state.
