The first demonstration of real-time control of the interaction between electromagnetic waves and spin excitations was achieved.
Significance and Impact
This work provides new opportunities for manipulating magnon-photon dynamics, opening a new direction for magnon-based coherent signal processing in both classical and quantum regimes.
- Enabled by novel device design, Floquet engineering was introduced into hybrid magnonic systems for the first time.
- The frequency of magnons — quasiparticles representing collective spin excitations — was modulated at previously unachievable speeds, leading to new and controllable modal interactions.
- The Center for Nanoscale Materials (CNM) magneto-electro-optical spectrometer was used.
Work was performed in part at CNM.
About Argonne’s Center for Nanoscale Materials
The Center for Nanoscale Materials is one of the five DOE Nanoscale Science Research Centers, premier national user facilities for interdisciplinary research at the nanoscale supported by the DOE Office of Science. Together the NSRCs comprise a suite of complementary facilities that provide researchers with state-of-the-art capabilities to fabricate, process, characterize and model nanoscale materials, and constitute the largest infrastructure investment of the National Nanotechnology Initiative. The NSRCs are located at DOE’s Argonne, Brookhaven, Lawrence Berkeley, Oak Ridge, Sandia and Los Alamos National Laboratories. For more information about the DOE NSRCs, please visit https://science.osti.gov/User-Facilities/User-Facilities-at-a-Glance.
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