期刊
PHYSICAL REVIEW B
卷 101, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.101.224418
关键词
-
资金
- US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [DE-AC02-05CH112311, KCWF16]
- King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) [OSR-2017-CRG6-3427]
- Future Materials Discovery Program through the National Research Foundation of Korea [2015M3D1A1070467]
- Science Research Center Program through the National Research Foundation of Korea [2015R1A5A1009962]
- DOE Office of Science User Facility [DE-AC02-05CH11231]
Spin pumping from ferromagnetic Fe into antiferromagnetic CoO across a Ag spacer layer was studied using ferromagnetic resonance (FMR) in Py/CoO/Ag/Fe/Ag(001). The thin Py film on top of CoO permits an alignment of the CoO Neel vector through field cooling in two otherwise equivalent [110] and [1 (1) over bar0] crystalline axes which are parallel and perpendicular to the Fe magnetization direction, respectively. Fe FMR linewidth is measured as a function of Ag thickness in 10-20-GHz frequency range and in 180-330 K temperature range. We find that there exists an anisotropy in the Fe FMR damping for parallel and perpendicular alignment of the Fe and CoO spins. However, such anisotropic damping exists only at thin Ag thickness where there exists a magnetic interlayer coupling between Fe and CoO, and vanishes at thick Ag thickness where the interlayer coupling becomes negligible but permitting spin-current transmission into CoO. Our result indicates the absence of anisotropic spin current for parallel and perpendicular alignment of the Fe and CoO spin axes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据