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首页> 外文会议>Symposium on Magnetic Ultrathin Films,Multilayers and Surface --1997 March 31-April 4,1997, San Francisco, California, U.S.A >Structural and magnetic study of Fe stripes and boxes patterned by the atomic saw method
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Structural and magnetic study of Fe stripes and boxes patterned by the atomic saw method

机译：用“原子锯”方法构图的铁条和铁盒的结构和磁性研究

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摘要

The Atomic Saw method has been successfully used to cut a Fe thin film, epitaxially grown onto a (001) MgO substrate, into stripes (widths ranging from 1 um m to 100 nm) and boxes (lateral sizes ranging from 1 um m) to 3 um m ). A structural of these magnetic structures by atomic force microscopy has shown that their geometries are controlled by the plastic strain. A magnetooptical study of the Fe stripes has revealed a surpirsing uniaxial magnetic anisotropy with an in-plane easy axis perpendicular to the stripes. This strong anisotropy can be exlained by an anisotropic relaxation of the misfit between the starting Fe film and the MgO substrate, induced by the cutting into stripes. Magnetooptical experiments on boxes have revealed that the initial cubic symmetry is recovered since, in this case, the relaxation is similar in perpendicular directions. They have also proved that their magnetization reversal is governed by nucleation phenomena.
机译：<< Atomic Saw >>方法已成功用于将外延生长在（001）MgO衬底上的Fe薄膜切割成条带（宽度范围从1 um m到100 nm）和盒子（横向尺寸从1到1）。 um m）到3 um m）。通过原子力显微镜对这些磁性结构的结构进行显示，其几何形状受塑性应变控制。对Fe条带的磁光研究显示出令人惊奇的单轴磁各向异性，其平面内易轴垂直于条带。这种强烈的各向异性可以通过切割成条状而引起的起始Fe膜和MgO衬底之间的失配的各向异性松弛来解释。在盒子上进行的磁光实验表明，恢复了初始的立方对称性，因为在这种情况下，松弛在垂直方向上相似。他们还证明了其磁化反转受成核现象控制。

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