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arXiv · 2103.14483

Switching magnon chirality in artificial antiferromagnet

Yahui Liu·Zhengmeng Xu·Lin Liu·Kai Zhang·Yang Meng·Yuanwei Sun·Peng Gao·Hong-Wu Zhao·Qian Niu·J. Li
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Abstract

Magnons in antiferromagnets can support both right-handed and left-handed chiralities, which shed a light on the chirality-based spintronics. Here we demonstrate the switching and reading of magnon chirality in an artificial antiferromagnet. The coexisting antiferromagnetic and ferromagnetic characteristic resonance modes are discovered, which permits a high tunability in the modulation of magnon chirality. The reading of the chirality is accomplished via the chirality-dependent spin pumping as well as spin rectification effect. Our result illustrates an ideal antiferromagnetic platform for handling magnon chirality and paves the way for chirality-based spintronics.

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Yahui Liu, Zhengmeng Xu, Lin Liu, Kai Zhang, Yang Meng, Yuanwei Sun, Peng Gao, Hong-Wu Zhao, Qian Niu, J. Li. 2021-03-26. Switching magnon chirality in artificial antiferromagnet. https://doi.org/10.1038/s41467-022-28965-7

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