Sensitive magneto-optical sensors for visualization of magnetic fields using garnet films of specific orientations
Sensitive magneto-optical sensors for visualization of magnetic fields using garnet films of specific orientations
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DOI：
10.1063/1.1516839
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发表时间：
2002-11
影响因子：
3.2
通讯作者：
M. Klank;O. Hagedorn;M. Shamonin;H. Dötsch
中科院分区：
文献类型：
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作者：
M. Klank;O. Hagedorn;M. Shamonin;H. Dötsch
高法拉第旋转角的石榴石薄膜被用作磁光传感器，以可视化磁场的空间分布。利用特定的取向，感应各向异性可以产生相对于薄膜平面倾斜的容易磁化平面。如果磁化强度在这个平面内，则可以获得很高的灵敏度。计算了易面的几何取向与生长方向的关系，并导出了灵敏度和动态范围。对[112]取向的石榴石薄膜的实验结果与理论计算符合得很好。
Garnet films of high Faraday rotation are applied as magneto-optical sensors to visualize the spatial distribution of magnetic fields. Using specific orientations, the induced anisotropy can generate an easy plane of magnetization which is inclined with respect to the film plane. If the magnetization lies in this plane a very high sensitivity can be achieved. The dependence of the geometrical orientation of the easy plane on the growth direction is calculated and the sensitivity and dynamic range are derived. Experimental results of a [112] oriented garnet film are in good agreement with calculations.