Large magnetic moment enhancement and extraordinary Hall effect in Co/Pt superlattices
Large magnetic moment enhancement and extraordinary Hall effect in Co/Pt superlattices
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DOI：
10.1103/physrevb.62.508
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发表时间：
2000-07-01
影响因子：
3.7
通讯作者：
Xiao, G
中科院分区：
文献类型：
--
作者：
Canedy, CL;Li, XW;Xiao, G
用磁控溅射技术制备了高质量的（111）和（100）取向的Co/Pt超晶格。研究了一系列Co/Pt超晶格中的反常霍尔效应和磁性。我们已经建立了一个大的增强时刻在Go/Pt接口的存在。磁性层中的拉伸应变被发现占主导地位的垂直磁各向异性（111）取向。从一个系统的Co层厚度的变化，我们已经确定，非凡的霍尔电阻率占主导地位的界面散射。此外，大的偏差，从常用的标度关系连接的非凡的霍尔电阻率和普通电阻率进行观察。这些都是在张提出的模型内讨论的。
High quality (111) and (100) oriented Co/Pt superlattices have been prepared using the magnetron sputtering technique. The extraordinary Hall effect and magnetic properties in a series of these Co/Pt superlattices have been studied. We have established the existence of a large enhanced moment at the Go/Pt interfaces. Tensile strain in the magnetic layers is found to dominate the perpendicular magnetic anisotropy for the (111) orientation. From a systematic variation of the Co layer thickness we have determined that the extraordinary Hall resistivity is dominated by interface scattering. Further, large deviations from the commonly used scaling relations linking the extraordinary Hall resistivity and the ordinary resistivity are observed. These are discussed within a model proposed by Zhang.