Research reveals controlled excitation of spin waves in a ferrimagnetic thin film, suggesting a new approach for magnonics.
Optical Transient Grating Spectroscopy In their Research Article (10.1002/adpr.202500233), Alexei A. Maznev, Riccardo Cucini, and co-workers present an approach for exciting standing dipolar spin waves with a controlled wave vector in a ferrimagnetic thin film. By separating magnons from phonons, transient grating spectroscopy emerges as a powerful optical gateway to multiscale magnonics.
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Brioschi et al. (2026) studied this question.
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