Terahertz high-harmonic generation in gapped antiferromagnetic chains
Terahertz high-harmonic generation in gapped antiferromagnetic chains
The nonlinear dynamics of magnetization in antiferromagnets, resulting in high-frequency spin waves (high-order harmonics) as signal carriers, enable fast magnetic state switching in spintronic devices. More harmonic orders potentially allow more information to be conveyed by the spins. Developing theoretical models to describe these waves in antiferromagnets is essential for …