Recently, a research team headed by Professor Yu Haiming from the School of Integrated Circuit Science and Engineering at Beihang University, in partnership with the team led by Professor Dirk Grundler from the École Polytechnique Fédérale de Lausanne in Switzerland, has achieved a significant breakthrough in the field of magnonics. Their research paper, 'Control of spin currents by magnon interference in a canted antiferromagnet', has been chosen as the cover story for the May 2025 issue of Nature Physics and has also been featured in the News & Views section.

This research represents the first-ever observation of coherent interference of antiferromagnetic spin waves within the antiferromagnetic insulator α-Fe₂O₃. By utilizing a blend of electrical and optical characterization methods, the team uncovered the distribution characteristics of interference fringes of spin waves in both the frequency and spatial domains. Moreover, the study showcased the capability to finely tune the chirality of output spin currents through the modulation of spin wave frequencies.

This groundbreaking discovery paves the way for novel logic operations and computing technologies based on antiferromagnetic chirality, substantially broadening the potential applications of magnons as carriers for next-generation information processing and computing.