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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Stress tunable magnetic stripe domains in flexible Fe81Ga19 films
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Stress tunable magnetic stripe domains in flexible Fe81Ga19 films

机译：柔性FE81GA19薄膜中应力可调磁条域

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摘要

In this paper, we propose an approach that combines in situ mechanical-stress measurement and magnetic force microscopy (MFM) imaging and enable manipulation of the spin configuration of flexible films by tailoring the stress-induced anisotropy. We demonstrate that the stress-induced anisotropy can effectively rotate stripe domains. We see that, without the application of the magnetic field, the stripe domains tend to align parallel (perpendicular) to the direction of tensile (compressive) stress. The expansion (shrinkage) of flux-closure cap domains in response to applied tensile (compressive) stress, changes the out-of-plane stray field and the profile in the MFM image. The experimental results have been reproduced very well by micromagnetic simulations assuming a stress-induced anisotropy. Furthermore, we studied the evolution of stripe domains in the film with compressive stress against a decreasing magnetic field. It is indicated that in-plane mechanical stress can effectively convert stripe domains with Bloch walls to those with Neel walls. The observed stress-modulation of magnetic stripe domains may find application in microwave absorbers and flexible electronics.
机译：在本文中，我们提出了一种与原位机械应力测量和磁力显微镜（MFM）成像相结合的方法，并通过定制应力诱导的各向异性来实现柔性膜的旋转结构。我们证明应力诱导的各向异性可以有效地旋转条纹域。我们看到，在没有施加磁场的情况下，条纹域倾向于将平行（垂直）与拉伸（压缩）应力的方向对准。磁通封闭帽域的膨胀（收缩）响应于施加的拉伸（压缩）应力，改变了平面外杂散场和MFM图像中的轮廓。假设应激诱导的各向异性，微磁性模拟已经非常好地复制了实验结果。此外，我们研究了膜中的膜中条纹域的演变，抗压缩应力抵抗磁场。结果表明，面内机械应力可以有效地将带状墙与尼尔墙壁的那些有效地将条纹结构域转换为那些。观察到的磁条结构域的应力调制可以在微波吸收器和柔性电子器件中找到应用。

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