Magnetic damping in ferromagnetic/heavy-metal systems: The role of interfaces and the relation to proximity-induced magnetism
Magnetic damping in ferromagnetic/heavy-metal systems: The role of interfaces and the relation to proximity-induced magnetism
复制标题
铁磁/重金属系统中的磁阻尼：界面的作用以及与邻近感应磁性的关系
DOI：
10.1103/physrevb.105.094433
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发表时间：
2022
影响因子：
3.7
通讯作者：
Swindells C
中科院分区：
文献类型：
--
作者：
Swindells C
自旋电子多层系统中的阻尼和自旋输运仍然是一个活跃的研究课题。研究了不同厚度的Au或Cu的铁磁体（FM）/间隔层（SL）/重金属（HM）薄膜系统的阻尼增强效应，以了解HM中邻近感生磁性（PIM）的相关性.在相同的样品上进行结构、PIM和磁阻尼测量。具体而言，二次离子质谱，元素特定的X-射线磁反射率和X-射线磁圆二色性在Pt和Auedges，和铁磁共振方法进行了使用。随着直接在FM和Pt层之间的Cu或Au SL的厚度增加，Pt PIM和阻尼都迅速下降，阻尼和PIM之间的关系取决于SL材料。在Au层中观察到的PIM显示出对层厚度的复杂依赖性，表明与Pt的一些杂化。的数量和位置的界面上的阻尼的作用被证明与添加的SL内的Pt层，这表明，NM/HM界面的具体细节也影响阻尼。在Pt内插入Cu SL显示出阻尼的总体增强的可测量的增加，而将Au SL插入Pt中对阻尼几乎没有影响。总之，这些结果表明PIM和附加接口的FM/HM系统中的阻尼的增强，这是不完全占现有的理论的作用。
Damping and spin transport in spintronic multilayered systems continues to be a topic of active research. The enhancement of damping in ferromagnet (FM)/spacer layer (SL)/heavy-metal (HM) thin-film systems was studied forwith a nonmagnetic (NM) SL of either Au or Cu with variable thickness, in order to understand the correlation with proximity-induced magnetism (PIM) in the HM. Structural, PIM and magnetic damping measurements were undertaken on the same samples. Specifically, secondary ion mass spectroscopy, element specific x-ray magnetic reflectivity and x-ray magnetic circular dichroism at the Pt and Auedges, and ferromagnetic resonance methods were used. With increasing thickness of a Cu or Au SL directly between the FM and the Pt layer, the Pt PIM and the damping both fall rapidly, with a relationship between damping and PIM that depends on the SL material. The PIM observed in the Au layer showed a complex dependence on the layer thickness, suggesting some hybridization with the Pt. The role of the number and location of interfaces on the damping was demonstrated with the addition of a SL within the Pt layer, which showed that the specific details of the NM/HM interface also affects the damping. The insertion of a Cu SL within the Pt showed a measurable increase in the overall enhancement of the damping while the insertion of a Au SL into Pt had almost no effect on the damping. Together these results demonstrate the role of both PIM and of additional interfaces in the enhancement of damping in FM/HM systems, which is not fully accounted for by existing theory.
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铁磁/重金属系统中的邻近感应磁性和阻尼增强
影响因子：
4
作者：
Swindells C
通讯作者：
Swindells C
通过磁 X 射线吸收检测 Co/Pt 和 Co/Pt/Ir/Pt 多层膜中的磁矩分布
DOI：
--
发表时间：
1993
期刊：
影响因子：
--
作者：
G. Schütz;S. Stähler;M. Knülle;P. Fischer;S. Parkin;H. Ebert
通讯作者：
H. Ebert
影响因子：
4.6
作者：
Rowan-Robinson RM;Stashkevich AA;Roussigné Y;Belmeguenai M;Chérif SM;Thiaville A;Hase TPA;Hindmarch AT;Atkinson D
通讯作者：
Atkinson D
X-Pt (X = Fe,Co,Ni) 合金系的磁性
DOI：
--
发表时间：
2003
期刊：
影响因子：
--
作者：
D. Paudyal;T. Saha‐Dasgupta;A. Mookerjee
通讯作者：
A. Mookerjee