Tunable microwave magnetic properties in oblique deposited CoHf/Ta multilayers
Tunable microwave magnetic properties in oblique deposited CoHf/Ta multilayers
复制标题
倾斜沉积 CoHf/Ta 多层膜中可调谐微波磁特性
DOI:
10.1063/1.4907998
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发表时间:
2015-02
影响因子:
3.2
通讯作者:
Xue Desheng
中科院分区:
文献类型:
--
作者:
Chai Guozhi;Wang Xinhua;Wang Zhiling;Xue Desheng
In this work, the microwave magnetic properties of oblique deposited CoHf/Ta multilayers were investigated. The high frequency magnetic properties of CoHf/Ta multilayers showed different behaviors with oblique angle for different Ta interlayer thickness t. For example, when the Ta interlayer thickness fixed as 5.0 nm, the resonance frequency fr increased from 2.1 to 3.4 GHz with the oblique deposition angle θ changing from 10° to 30°. However, when the Ta layer fixed as 15.0 nm, the fr decreased from 2.5 to 1.7 GHz with the oblique deposition angle changing in the same range. The opposite behavior of the fr with θ is supposed to result from the existence of the Ta buffer layer, in which the thicker Ta interlayer may hinder the self-shadow effects of the CoHf magnetic layers.
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