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Switching magnon chirality in artificial antiferromagnet

Authors :
Liu, Yahui
Xu, Zhengmeng
Liu, Lin
Zhang, Kai
Meng, Yang
Sun, Yuanwei
Gao, Peng
Zhao, Hong-Wu
Niu, Qian
Li, J.
Publication Year :
2021

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.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2103.14483
Document Type :
Working Paper
Full Text :
https://doi.org/10.1038/s41467-022-28965-7