Metallic spintronic thin film as a hydrogen sensor
Metallic spintronic thin film as a hydrogen sensor
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DOI：
10.1063/1.4800923
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发表时间：
2013-04-08
影响因子：
4
通讯作者：
Ivanov, Eugene
中科院分区：
文献类型：
--
作者：
Chang, Crosby S.;Kostylev, Mikhail;Ivanov, Eugene
研究了钯钴双层薄膜在大气压下充氢时的铁磁共振响应。我们发现，氢的吸收钯盖层的结果在下面的钴的铁磁共振线的窄化和移位。我们解释所观察到的现象，从减少的自旋泵效应和钴层的磁各向异性的变化，通过界面效应。谐振频率或场的偏移最容易检测。我们利用这一点来证明双层膜作为氢传感器的功能。(C)2013年美国物理学会。
We investigate the ferromagnetic resonance response of palladium-cobalt bi-layer thin films to hydrogen charging at atmospheric pressure. We find that hydrogen absorption by the palladium capping layer results in the narrowing and shifting of the ferromagnetic resonance line of the underlying cobalt. We explain the observed phenomena as originating from reduction in the spin pumping effect and from variation in the magnetic anisotropy of the cobalt layer through an interface effect. The shift of the resonance frequency or field is the easiest to detect. We utilize this to demonstrate functionality of the bi-layer film as a hydrogen sensor. (C) 2013 American Institute of Physics.