Dual wavelength magneto-optical imaging of magnetic thin films
Dual wavelength magneto-optical imaging of magnetic thin films
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DOI：
10.1063/1.4824426
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发表时间：
2013-10
影响因子：
4
通讯作者：
T. V. Hofe;N. O. Urs;Babak Mozooni;Thomas Jansen;C. Kirchhof;D. Bürgler;E. Quandt;J. McCord
中科院分区：
文献类型：
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作者：
T. V. Hofe;N. O. Urs;Babak Mozooni;Thomas Jansen;C. Kirchhof;D. Bürgler;E. Quandt;J. McCord
演示了一种用于多个磁化分量同时成像的磁光成像方法。该方法用于研究单晶铁和图案化非晶磁致伸缩铁磁结构中复杂的磁化反转过程。使用分离的光学照明和观察路径可以直接提取不同的互补磁信息。实时面内矢量磁化成像揭示了磁致伸缩薄膜中由于局部变化的应力引起的磁各向异性而导致的复杂的磁畴排列过程。标准域成像技术隐藏的磁域特征被直接暴露。
A magneto-optical imaging approach for the simultaneous imaging of multiple magnetization components is demonstrated. The method is applied to investigate complex magnetization reversal processes in single crystal iron and patterned amorphous magnetostrictive ferromagnetic structures. The use of a splitted optical illumination and observation path allows for the direct extraction of different complementary magnetic information. Real-time in-plane vector magnetization imaging reveals complicated domain arrangement processes in magnetostrictive films due to locally varying stress induced magnetic anisotropy. Magnetic domain features concealed by standard domain imaging techniques are directly exposed.