Terahertz light-induced nonlinear coupling between distinct magnon modes in a canted antiferromagnet

Zhuquan Zhang,Frank Y. Gao,Zi-Jie Liu,Yu-Che Chien, Keith A. Nelson,Edoardo Baldini

The International Conference on Ultrafast Phenomena (UP) 2022（2022）

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摘要

Identifying the signature of couplings has been elusive in conventional spectroscopies. Here, we discover the fingerprints of correlation between two distinct magnons in an antiferromagnet, as evidenced by off-diagonal peaks in the two-dimensional terahertz spectroscopy.

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关键词

distinct magnon modes,nonlinear coupling,light-induced

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