Magnetic properties of Pd/Co multilayer films studied by Hall effect
Magnetic properties of Pd/Co multilayer films studied by Hall effect
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DOI：
10.1063/1.352643
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发表时间：
1993-05
影响因子：
3.2
通讯作者：
Sangrok Kim;S. Lee;J. D. Chung
中科院分区：
文献类型：
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作者：
Sangrok Kim;S. Lee;J. D. Chung
用霍尔磁滞回线测量方法研究了热蒸发法制备的Pd/Co多层膜的磁性和霍尔效应。Pd/Co多层膜的霍尔磁滞回线的极性在4和5个Pd单层（ML）之间变化。这可能是由于Pd/1Co多层膜中3d能带的费米能级位置随Pd厚度的变化而从下半带向上半带移动所致。发现作为Pd厚度的函数的霍尔介电常数振荡，并且振荡的周期约为Pd的5 ML。饱和磁化强度随Pd厚度的变化反映了高达7 ML的Pd的振荡行为，并且在具有4或更厚ML的Pd的膜中观察到增强的Co矩。
The magnetic properties and Hall effects of Pd/Co multilayer films fabricated by thermal evaporation have been studied using the Hall hysteresis loop measurement. The polarity of the Hall hysteresis loops of Pd/Co multilayer changed between 4 and 5 monolayers (ML) of Pd. It was speculated that the reason for this phenomena is the change of the position of Fermi level of 3d band in Pd/1Co multilayer from lower half of the band to upper half of the band depending on the Pd thickness. The Hall resistivities as a function of Pd thickness were found to oscillate and the period of oscillation was about 5 ML of Pd. The change of saturation magnetization as a function of Pd thickness reflected the oscillatory behavior up to 7 ML of Pd and the enhanced Co moments were observed in the film with 4 or thicker ML of Pd.