Layer-resolved imaging of magnetic interlayer coupling by domain-wall stray fields
Layer-resolved imaging of magnetic interlayer coupling by domain-wall stray fields
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DOI：
10.1103/physrevb.67.214403
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发表时间：
2003-06
影响因子：
3.7
通讯作者：
W. Kuch;L. Chelaru;K. Fukumoto;F. Porrati;F. Offi;M. Kotsugi;J. Kirschner
中科院分区：
文献类型：
--
作者：
W. Kuch;L. Chelaru;K. Fukumoto;F. Porrati;F. Offi;M. Kotsugi;J. Kirschner
已经研究了使用X射线磁性圆形二色性作为磁对比度机制的光电子发射显微镜拍摄的cu/cu/ni三层（001）上的外上脚上生长的Co/Cu/ni Trilayer的层磁域图像。在这些三部件中，NI层被垂直于膜平面磁化，而CO磁化是在膜平面中。比较CO和NI层的生长磁性域图像，揭示了Ni域壁对CO域模式的磁静态静脉磁场的影响，这是与Ni域壁相比，CO域壁位置的横向位移。通过比较外部磁场的效果来量化该效果，并且发现相当于约250 OE。使用landau-lifshitz-gilbert方程的微磁模拟证实了Ni域壁静电场相互作用的大小。
Layer-resolved magnetic domain images of epitaxially grown Co/Cu/Ni trilayers on Cu(001) have been studied, taken by photoelectron emission microscopy using x-ray magnetic circular dichroism as a magnetic contrast mechanism. In these trilayers the Ni layers are magnetized perpendicularly to the film plane, whereas the Co magnetization is in the film plane. Comparison of the as-grown magnetic domain images of the Co and Ni layers reveals the influence of the magnetostatic stray fields from Ni domain walls on the Co domain pattern as a lateral displacement of the Co domain wall position compared to the Ni domain walls. The effect is quantified by comparing to the effect of external magnetic fields, and is found to be equivalent to about 250 Oe. Micromagnetic simulations using the Landau-Lifshitz-Gilbert equation confirm that size of the Ni domain wall stray field interaction.