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Tuning magnetic domain structure in nanoscale La0.7Sr0.3MnO3 islands

机译:在纳米La0.7Sr0.3MnO3岛中调谐磁畴结构

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摘要

The realization of spin-based devices requires high density, ordered arrays of magnetic materials with a high degree of spin polarization at surfaces. We have synthesized, for the first time, highly spin polarized complex magnetic oxide nanostructures embedded in a paramagnetic matrix by electron beam lithography and ion implantation. Imaging the magnetic domains with X-ray photoemission electron microscopy and magnetic force microscopy reveals a delicate balance between magnetocrystalline, magnetoelastic, and magnetostatic energies that can be tuned by the choice of SrTiO3 substrate orientation, film thickness, island size, and island shape.
机译:基于自旋的器件的实现需要在表面具有高自旋极化度的高密度,有序排列的磁性材料阵列。我们首次通过电子束光刻和离子注入合成了嵌入顺磁性基质中的高度自旋极化的复合磁性氧化物纳米结构。用X射线光电子发射显微镜和磁力显微镜对磁畴成像后,发现磁晶能,磁弹性能和静磁能之间的微妙平衡,可以通过选择SrTiO3衬底方向,膜厚度,岛尺寸和岛形状来调节。

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