Magneto-optic observation of domain motions and instabilities in small permalloy elements
Magneto-optic observation of domain motions and instabilities in small permalloy elements
复制标题
小型坡莫合金元件中磁域运动和不稳定性的磁光观察
DOI：
10.1109/tmag.1986.1064551
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发表时间：
1986
影响因子：
2.1
通讯作者：
B. Argyle
中科院分区：
文献类型：
--
作者：
D. Herman;B. Argyle
本文研究了坡莫合金薄膜（375 A）的易磁化轴和难磁化轴小矩形条带中畴壁网络在变化磁场（≤ 30 Hz）下的运动和变化。许多以前使用Bitter解决方案或洛伦兹技术报告的效果，现在看到光学在真实的时间与宽场，高分辨率，偏振，激光磁光显微镜系统。该初步研究报告了畴结构之间的转换的光学检测，例如Landau-Lifshitz结构（L.L.），L.L.还有钻石手风琴和风箱壁簇和子簇伪影可见，并且可以看到在网络运动期间生成（湮灭）或分叉（合并）。
Domain wall networks, their motions and transformations are studied in response to changing magnetic fields (≤ 30 Hz) in small, rectangular, easy-axis and hard-axis stripes of Permalloy film (375A). Many of the effects reported previously using Bitter solution or Lorentz techniques are now seen optically in real time with a wide-field, high resolution, polarized, laser magneto-optic microscope system. This initial study reports optical detection of transformations between domain configurations such as the Landau-Lifshitz structure (L.L.), L.L. plus diamond, concertina, and bellows. Wall cluster and subcluster artifacts are visible and may be seen to generate (annihilate) or bifurcate (amalgamate) during network motion.