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Structural and Magnetic Properties of Ni0.8Fe0.2/Ti Nanoscale Multilayers

机译：Ni0.8Fe0.2 / Ti纳米多层膜的结构和磁性

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摘要

The influence of the thickness of the Ni0.8Fe0.2 (Permalloy, Py) layers on the structural and magnetic properties of magnetron sputtered Py/Ti multilayers was studied. The thickness of the Py layers was varied in the interval of 8 to 30 Å. X-ray reflectivity scans evidence the existence of a well-defined layered structure in all the samples considered, but also the presence of a complex intermixed interface. The shape of both the temperature dependence of magnetization and the hysteresis loops of the multilayered structures depends strongly on Py thickness. Magnetic and reflectivity measurements were comparatively analyzed in order to better understand the structure of the samples, and specifically, their interfaces. In particular, the presence of small superparamagnetic Py at the interfaces of the samples, especially evident in the samples with the thinnest Py layers, seems confirmed by the magnetic measurements, agreeing well with the reflectivity results.
机译：研究了Ni0.8Fe0.2（坡莫合金，Py）层的厚度对磁控溅射Py / Ti多层膜的结构和磁性的影响。 Py层的厚度在8至30的间隔内变化。 X射线反射率扫描证明在所有考虑的样品中均存在定义明确的分层结构，但也存在复杂的混合界面。磁化强度的温度依赖性和多层结构的磁滞回线的形状都强烈取决于Py厚度。为了更好地理解样品的结构，特别是它们的界面，对磁性和反射率测量值进行了比较分析。尤其是，样品的界面处存在小超顺磁Py，尤其是在具有最薄Py层的样品中明显，这已通过磁性测量得到证实，与反射率结果非常吻合。

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