Spin wave switch and filter based on magnonic crystal
AssigneeInstitute of Physics, Chinese Academy of Sciences
InventorsXiufeng Han, Yaowen Xing, Zhengren Yan
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Abstract
The present disclosure relates to a spin wave switch and a filter based on a magnonic crystal. According to one embodiment, a magnonic crystal device may include a ferromagnetic layer and an antiferromagnetic planar periodic structure set on the ferromagnetic layer. The magnonic crystal device of the present disclosure may be used as a spin wave switch to effectively regulate and control the transmission coefficient of the spin wave, or may be used as a spin wave filter to filter the spin wave of a specific frequency.
Claims17
A magnonic crystal device, comprising:
- a ferromagnetic layer;
- an antiferromagnetic planar periodic structure set on the ferromagnetic layer;
- and
- a spin Hall effect layer set on one side of the ferromagnetic layer opposite to the antiferromagnetic planar periodic structure and in contact with the ferromagnetic layer, and used to switch a magnetization of the ferromagnetic layer.
A spin wave switch, which comprises a magnonic crystal device including a ferromagnetic layer and an antiferromagnetic planar periodic structure set on the ferromagnetic layer,
- wherein the magnonic crystal device further comprises a spin Hall effect layer set on one side of the ferromagnetic layer opposite to the antiferromagnetic planar periodic structure and in contact with the ferromagnetic layer, and used to switch a magnetization of the ferromagnetic layer.
A spin wave filter, which comprises a magnonic crystal device including a ferromagnetic layer and an antiferromagnetic planar periodic structure set on the ferromagnetic layer,
- wherein the magnonic crystal device further comprises a spin Hall effect layer set on one side of the ferromagnetic layer opposite to the antiferromagnetic planar periodic structure and in contact with the ferromagnetic layer, and used to switch a magnetization of the ferromagnetic layer.
Dependencies are inferred from the claim text.