期刊
PHYSICAL REVIEW B
卷 105, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.104408
关键词
-
资金
- Deutsche Forschungsgemeinschaft [SFB 1432]
In this study, the magnetic proximity effect in multilayer systems composed of different ferro-and antiferromagnetic materials was investigated using an atomistic spin model. The results show that the magnetic order in the central layer is enhanced, even in the case of an antiferromagnet surrounded by ferromagnetic materials.
The design of spin-transport-based devices such as magnon transistors or spin valves will require multilayer systems composed of different magnetic materials with different physical properties. Such layered structures can show various interface effects, one class of which is proximity effects, where a certain physical phenomenon that occurs in one layer leaks into another one. In this work a magnetic proximity effect is studied in trilayers of different ferro-and antiferromagnetic materials within an atomistic spin model. We find the magnetic order in the central layer-with lower critical temperature-is enhanced, even for the case of an antiferromagnet surrounded by ferromagnets. We further characterize this proximity effect via the magnon spectra which are specifically altered, especially for the case of the antiferromagnet in the central layer.
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