Abstract

Spin valves comprising a synthetic antiferromagnet and a CoFe/Dy/CoFe structure in the pinned layer were prepared by magnetron sputtering. It is shown that the Dy layer is characterized by crystallites, the [0002] direction of which is perpendicular to the film plane; a part of nanostructure, in which the spin-dependent electron scattering occurs, is characterized by smooth interfaces. Variations of magnetotransport properties of the spin valve, which are due to the formation of antiferromagnetic order in the dysprosium layer, are observed. Peculiarities of noncollinear magnetic order of the Dy layer were found to depend on the direction of magnetic moments of adjacent layers and magnetic field strength when passing through the Néel temperature.

中文翻译：

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Layer层中的非共线磁性顺序和包含CoFe / Dy / CoFe结构的自旋阀的磁输运性质

摘要

通过磁控管溅射制备在固定层中包括合成反铁磁体和CoFe / Dy / CoFe结构的自旋阀。可以看出，Dy层的特征在于微晶，其[0002]方向垂直于薄膜平面。纳米结构的一部分，其中发生自旋相关的电子散射，其特征是光滑的界面。观察到由于valve层中反铁磁序的形成，自旋阀的磁传输特性发生了变化。发现Dy层的非共线磁性顺序的特殊性取决于相邻层的磁矩的方向以及穿过Néel温度时的磁场强度。